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2019 / 08 / 08
Waterproof membrane is the first layer of protective film for waterproof engineering, and its quality will directly affect the future waterproof effect. There are many types of waterproof membranes on the market and there are many brands. Today we will first introduce you to vinyl chloride waterproof membranes. PVC waterproof membrane is good First, what is polyvinyl chloride waterproof membrane? Polyester fiber reinforced polyvinyl chloride (PVC) waterproofing membrane, polyester fiber reinforced polyvinyl chloride (PVC) waterproofing membrane is a kind of thermoplastic PVC coiled material. The coil is made of polyester fiber fabric. Reinforcing ribs, through a special extrusion coating process, a polymer membrane formed by combining a double-sided polyvinyl chloride plastic layer with an intermediate polyester rib. The combination of advanced polyvinyl chloride plastic layer and mesh structure of polyester fiber fabric gives the coil excellent dimensional stability and low thermal expansion coefficient. Improve the long-term performance of coils exposed directly to the environment. Product specifications: Width: 2-2.1m, thickness: 1.2mm-2.0mm, length: 20m or more. Construction method: hot air welding, so as to ensure the effect of the weld. Second, polyvinyl chloride waterproof roll advantages 1, long life, anti-aging, roofing materials can be used for more than 15 years, underground for up to 50 years. 2, high tensile strength, high elongation, mat processing changes. 3, low temperature flexibility, adapt to the environment temperature changes. 4, the root system permeability is good, can be planted roof. But the characteristics are worse than the copper tire SBS. Copper tire SBS i
2019 / 08 / 05
Flame retardants are a key component in reducing the devastating impact of fires on people, property and the environment. They are added to treat potentially flammable materials, including textiles and plastics. Flame retardant plastics are essential to devices we use every day, providing a valuable tool in fire prevention. The term [flame retardant" refers to a function, not a family of chemicals. A variety of different chemicals, with different properties and structures, act as flame retardants and these chemicals are often combined for effectiveness. PVC Impact Modifier PVC Additives PVC Processing Aid Acrylic Impact Modifier Acrylic Processing Aid PVC Heat Stabilizer PVC Lubricant CPVC Compound CPVC Additives
THE 3 PHASES OF FIRE AND THE PROTECTING FEATURES OF FLAME RETARDANTS
2019 / 07 / 31
IGNITION SOURCE • Prevent ignition • Possibly self-extinguish FLAME SPREAD (REACTION TO FIRE) • Slow down flame spread • Reduce heat release • Delay flash-over FIRE PENETRATION (RESISTANCE TO FIRE) • Prevent the collapse of structures, e. g. steel columns protected by intumescent coatings • Prevent fire moving to adjacent room or building compartment
How Flame Retardants can INCREASE ESCAPE TIME IN FIRES
2019 / 07 / 27
• Fla me r • Flame retardants reduce the risk of ignition and fire spread of many plastic and textile materials w which results in more available escape time for occupants. • Time to flashover can increase from 5 minutes to 15 minutes which can make the difference between escape and fatalities. • Bear in mind that the escape time includes the time to discover the fire, alert other people, take the decision to call the fire brigade, take own actions to extinguish or take the decision to evacuate the building.
Flame Retardants: Preventing Fires and Protecting Consumers
2019 / 07 / 20
As consumer products continue to evolve and improve, from lighter and faster computers to energy-saving building materials and construction methods to more fuel-efficient cars, fire safety technology allows these products to comply with domestic safety standards and laws. Flame retardants are materials that can be used in products, made from plastics, textiles, foams or wood, to reduce the chances of a fire starting and to delay the spread of fire once it starts. Flame retardant compounds help mitigate fire danger - Increase plastic`s ignition resistance - Reduce the speed of flame spread
Impact Modifier Market Size, Share & Trends Analysis Report
2019 / 07 / 15
The global impact modifier market size was estimated at USD 3.28 billion in 2017. It is projected to progress at a CAGR of 5.8% from 2018 to 2025. Rising demand from various end-use industries such as packaging, construction, automotive, and consumer goods is likely to augment the market in the forthcoming years.In addition, unavailability of close substitutes is anticipated to work in favor of the market. U.S. accounts for the leading share in the North America market for impact modifiers. It is also poised to be a prominent contributor to the global market during the forecast period. The growth of the market in the country can be attributed to increasing applicability of PVC products in various end-use industries. Impact modifiers are widely used in production of PVC products owing to its advantageous properties such as excellent weather resistance, impact performance, and gloss properties. Growing industrialization, especially in developing countries, is positively influencing the growth of the overall market. The product comes with several beneficial characteristics such as superior weatherability, flammability, processability, and optical & tensile properties. Technological advancements to enhance its properties are expected to spur the growth of the market.
A true story: flame retardant saves lives
2019 / 07 / 13
One winter morning, the temperature was as low as zero, the United States, Colorado,, the workers of the Oil Refinery Co to wear Staben Marvin fire retardant clothes and jacket start work. At this time, the refinery workers don't know body protective clothing will in the deflagration occurred the same day saved his life. When one end of horizontal tank Staben around a capacity of 5000 gallons of the move, the eyes see the flames beat Yu Guangzhong. A flammable vapor cloud around the ignition moment by unknown sources of ignition, Staben suddenly plunged into a sea of flames. Another worker sees refinery workers staben tried to escape the flames. See when he has to stand up and quickly told him to roll in situ. Staben hit three rolls, 35 feet from the ignition point of foot, colleagues before he pulled out. Staben is on the face and neck at some degree and two degree burns, and no other fatal burns. "I think I'm very, very lucky." Staben in summing up the experience of deflagration escape said, "it just a few seconds time may change my life. I know, if I didn't wear aflame retardant protective clothing, it's probably not here today."
Chlorinated Polyethylene (CPE) Characteristics and Application
2019 / 07 / 08
Chlorinated polyethylene (CPE) is a material obtained through the substitution of hydrogen atoms with chlorine atoms in high-density polyethylene (HDPE). CPE exists as a white powder. It is non-toxic and tasteless. The high-temperature thermal aging resistance of CPE fabricated from low-pressure polyethylene HDPE is superior to that of CPE fabricated from high-pressure polyethylene. CPE is commonly produced in the density range of 0.93–0.96 g/cm3 with an average molecular weight of 5–25 million and the melt index of 0.01–2.0 g/10 min. The degree of chlorination has a significant effect on the properties of CPE. For example, CPE is plastic when its chlorine content is less than 15%, a thermoplastic elastomer when its chlorine content is 16%–24%, and a rubber-like elastomer when its chlorine content is 25%–48%. It is a leather-like semi-elastic hard polymer when its chlorine content is 49%–58% and becomes a brittle resin when its chlorine content increases to 73%. Crystallinity is eliminated from high-pressure polyethylene upon the introduction of approximately 27% chlorine content. Crystallinity is also eliminated when 30% chlorine content is introduced into high-crystallinity low-pressure polyethylene. CPE rubber elastomer preferably contains 30%–40% chlorine. CPE rubber contains 25%–45% chlorine. Increasing chlorine content improves the oil resistance, air permeability, and flame retardancy of the CPE product. By contrast, decreasing chlorine content improves the cold resistance, resilience, and compression bending performance of the CPE product.
Acrylic Processing Aid & Application
2019 / 07 / 02
Acrylic Processing aid is give most outstanding performance during the process in PVC application for promotes faster fusion, increase production output and yield, improve melt - elasticity, reduction of plate-out and melt texture, improve surface gloss, finishing, thickness, weight, tensile strength and impact. These products comes low, medium, and high molecular weight for specific pvc application. Processing aids fall into two categories 1. Acrylic Processing aid. 2. Lubricating Acrylic processing aid. Applications Acrylic processing aid use in PVC pipes -fitting, CPVC pipe-fitting, uPVC pipes-fittings, PVC furniture, PVC medical parts, PVC door-window, PVC footwear, PVC blister film, PVC rigid sheet, PVC flexible film, PVC packaging film, PVC lamination film, PVC shrink film, PVC celuka foam board/sheet, WPC sheet, WPC profiles/chokhat, PVC free foam sheet, PVC rigid profiles, automotive products and other many application
PVC Additives Market - - Global Forecast to 2021
2019 / 06 / 24
The global PVC additives market was valued at USD 3.05 Billion in 2016, and is projected to reach USD 4.08 Billion by 2021, at a CAGR of 6.0% during the forecast period. The replacement of conventional materials with PVC and the high demand for additive-based PVC are factors anticipated to drive the growth of the global PVC additives market. On the basis of type, the global PVC additives market has been classified into stabilizers, impact modifiers, processing aids, lubricants, plasticizers, and others. The stabilizers segment is expected to lead the global PVC additives market during the forecast period, followed by the lubricants segment. The stabilizers segment is anticipated to grow at the highest CAGR between 2016 and 2021, owing to the increasing usage of stabilizers in pipes & fittings, rigid & semi-rigid films, window profiles, wires & cables, medical, and consumer goods, among other applications. Based on fabrication process, the global PVC additives market has been segmented into extrusion, injection molding, and others. The extrusion segment is expected to be the fastest-growing fabrication process segment, owing to the increase in manufacturing of high volumes of extruded PVC at minimal cost. Based on application, the global PVC additives market has been segmented into pipes & fittings, profiles & tubing, rigid sheet & panel, wires & cables, bottles, and others. The pipes & fittings segment is the fastest-growing application segment of the global PVC additives market. PVC additives are widely utilized in PVC pipes & fittings, due to the rising demand for the replacement of conventional concr
The Economic Impact of Rigid PVC Lubricant Systems
2019 / 06 / 17
Lubricants are at the center of rigid PVC processing. They are the tools used to tune a rigid PVC compound to the processing equipment, and, if necessary, adjust for variations in other raw materials or changes in equipment conditions. Lubricants affect the amount of work imparted into rigid PVC during processing, and influence where and when that work takes place in the processing equipment. In some ways lubricants can be thought of as inside material temperature and pressure controls which work in concert with outside equipment process controls (screw speed, orifice selection, and temperature profiles.) The lubricant system itself is a relatively small part of the formulation costs for most rigid PVC operations. The only ingredient less expensive then lubricants in most rigid PVC formulations is calcium carbonate. Lubricants impact the cost of goods sold on three different levels:
Chlorinated polyethylene (CPE)
2019 / 06 / 05
Chlorinated polyethylene (CPE) is one of the main rubber elastomer of the world at present. After 30 years of innovation and development, China's CPE production capacity has been ranked in the forefront of the world. All over the world the application of CPE in rubber field is very wide. Industry experts believe that the CPE rubber has more comprehensive performance, good mechanical properties, heat aging resistance, ozone resistance, weather resistant performance, good electrical properties and good processing properties and green environmental protection, the conventional rubber is higher than the current use, provide the precondition for improving the technological level of cable product.CPE has many advantages comparing to synthetic rubber ones, has been widely used in soft cable and fire retardant crosslinked line for building household appliances, electrical equipment manufacturing cord. Therefore, the promotion of CPE can be used to change the product structure of cable industry and the application of the selection of the promotion, so as to bring a profound change in the development of cable products. Compared with the conventional rubber material, the rubber type CPE has the characteristics of high quality, high technical level, low cost and good benefit; it is a green environmental protection, and its solid performance when exposed to fire also makes it a preferred alternative to cable. Therefore, the promotion of the use of CPE new material can not only reduce the production cost of the cable industry, but also no pollution, in line with the requirements of sustainable development. Welcome to choose our Novista CPE rubber type for cable.
2019 / 06 / 01
The use of calcium/zinc stabiliser systems has been common in PVC applications for over 25 years. These materials are generally based on metal carboxylates and will sometimes incorporate other elements to boost performance such as aluminium or magnesium. Because the heat stability in some applications may require some enhancement when using calcium/zinc, organic co-stabilisers will also often be added to this type of formulation. These materials include polyols, epoxydised soya bean oil, antioxidants and organic phosphites.
Heat Stabilizers: The Coolest Polymer Additive
2019 / 05 / 13
Plastics are amazingly versatile and useful compounds, but they do have a common influence factor: heat. Anyone whose kid has left a toy soldier in the oven, or - if you`re old enough to remember them - had their favorite cassette tape warp in a hot car, has experienced first-hand how heat can affect plastic and vinyl materials. Heat stabilizers solve that problem by helping the materials they`re added to better resist the damage that can stem from exposure to high temperatures. These common polymer additives are precisely why extremely hot water doesn`t melt the PVC plumbing pipes in your home. When incorporated into a #polymer, heat stabilizers protect the properties of the overall compound from heat damage, either during the manufacturing process or during normal use of the finished product. While different polymers have varying degrees of heat resistance, heat stabilizers are added to virtually all polymer types. Polyvinyl chloride (PVC) is the most common polymer that benefits from a heat-stabilizing additive. Heat stabilizers help preserve the polymer`s appearance, strength, elasticity, durability and performance characteristics. Two basic types of heat stabilizers are used in polymers: organophosphites, which protect polymers during the manufacturing process, and phenolic antioxi
PVC Stabilizer Market by Type , by Application - Trends & Forecasts to 2020
2019 / 05 / 07
PVC stabilizers are organic or inorganic substances that are added to PVC in order to improve its characteristics such as strength, durability, and heat sensitivity. PVC stabilizers are used to add value by modifying the physical or chemical properties of PVC or by reinforcing its mechanical properties to make it stronger and better for end-use applications. PVC stabilizers are used in a variety of applications of PVC such as pipes & fittings, rigid and semi-rigid films, coatings & flooring, window profiles, and wires & cables. They also help in the processing of PVC by increasing its heat stability, melting point, and lubrication, thus enabling plastics manufacturers to achieve higher output rates and increased efficiency without affecting the quality of the final product Asia-Pacific is the largest market of PVC stabilizers, registering a significant share of 57.1% of the total market in 2014. The market patterns of PVC stabilizers and its different types used in various applications in the region are continuously witnessing an upward trend. China is the leading country in Asia-Pacific and across the globe, in terms of volume and value. PVC stabilizers are basically used in pipes & fittings, window profiles, and rigid & semi-rigid films in the region. PVC Stabilizer Market: A projected value of USD 3.8 Billion by 2020, signifying firm annualized growth of 6.9% between 2015 and 2020. PVC stabilizers are one of the most important additives used in the manufacturing of PVC (polyvinyl chloride) to avoid the decomposition of PVC during the heating process. During its manufacturing, PVC releases hydrochloride, which furthe
2019 / 04 / 29
Economical, versatile polyvinyl chloride (PVC, or vinyl) is used in a variety of applications in the building and construction, health care, electronics, automobile and other sectors, in products ranging from piping and siding, blood bags and tubing, to wire and cable insulation, windshield system components and more. Uses & Benefits Vinyl is versatile: it can be as rigid as industrial pipes, as pliable as plastic wrap, and as thin and flexible as wallcovering. It can also be completely clear or matched to any color desired. Building and Construction About three-quarters of all vinyl produced goes into long-lasting building and construction applications.
Where are flame retardants used?
2019 / 04 / 27
Flame retardants have been used in many consumer and industrial products since the 1970s, to decrease the ability of materials to ignite. Flame retardants are often added or applied to the following products. Furnishings, such as foam, upholstery, mattresses, carpets, curtains, and fabric blinds. Electronics and electrical devices, such as computers, laptops, phones, televisions, household appliances, and wires and cables. Building and construction materials, including electrical wires and cables, and insulation materials, such as polystyrene and polyurethane insulation foams. Transportation products, such as seats, seat covers and fillings, bumpers, overhead compartments, and other parts of automobiles, airplanes, and trains. Many flame retardants have been removed from the market or are no longer produced. However, because they do not easily break down, they can remain persistent in the environment for years. They can also bioaccumulate, or build up in people and animals over time.
Common Production Methods of Chlorinated Polyethylene
2019 / 04 / 22
Chlorinated polyethylene is made of polyethylene (PE) by chlorination. It has the dual advantages of plastic and rubber. It is resistant to oil, ozone, heat and oxygen, corrosion, fire, bacteria and microorganisms. Other aspects are superior to other rubbers. It can be used alone or in combination with plastics and rubber. It has outstanding advantages in the fields of waterproofing membranes, plastic doors and windows, wire and cable sheathing, hose tape, color bicycle tires, glass door and window sealing strips, etc. An ideal polymer elastic material has broad application prospects. At present, the production process of chlorinated polyethylene CPE is divided into two categories: homogeneous chlorination process and heterogeneous chlorination process. There are three production methods according to chlorination: solvent method, aqueous phase suspension method and gas-solid phase chlorination method. The production of chlorinated polyethylene CPE should use PVC resin with loose structure and extremely thin skin layer to enlarge the surface area of PVC particles and increase the contact area with chlorine gas. In the solvent chlorination method, S-PVC is dissolved in a chlorine-containing solvent, an initiator azodiacetonitrile is added, and chlorine gas is introduced into the reaction vessel for chlorination. The carbon tetrachloride solvent method is still widely used in China, and its overall level of equipment is comparable to that of developed countries in the early 1970s. This method has a uniform reaction and is easy to process. It can be used to produce advanced corrosion-resistant coatings or used for the production of fishing nets, industrial filter cloths and other products after spinning. Disadvantages are long process flow, difficulty in solvent recovery, high production cost and easy environmental pollution. The aqueous suspension method (heterogeneous chlorination) is carried out by adding S-PVC resin to water or hydrochloric acid, stir
2019 / 04 / 20
Flammability of microelectronic components, particularly those using molding compounds as encapsulants, is a safety concern that can be mitigated by the use of appropriate materials. In most common plastic encapsulants, flame retardant capability is acquired through the use of bromine-based aromatic compounds. These brominated flame retardants (BFRs) are preferred because of their low cost and effectiveness, especially in their ability of to ensure compliancy with industrial flammability standards. Thus, the flame retardants with aromatically bonded bromine have the highest market share, primarily because they tend to be resistant to breakdown over time or temperature. When the epoxy encapsulants are exposed to heat or open flames, the epoxy compounds break down and in the process release free radicals such as OH and H in the form of flammable gases. BFRs work by chemically interfering with the gas phase of the combustion process. However, bromine containing compounds have also been found to form dioxins during the combustion process, and these active dioxins are considered to be carcinogens by the Environmental Protection Agency (EPA). Therefore, a strong trend is emerging for selecting bromine replacement materials that is focused primarily on environmental, health, and reliability concerns. Phosphorous based flame retardants (PFRs) have been considered as alternate replacement materials to BFRs. Phosphorous based flame retardants impede the combustion process through multiple reaction steps. These PFRs are primarily divided into organic and inorganic compounds. Organic phosphorous based flame retardants currently used in electronic applications consist of phosphates, phosphonates, phosphinates, and phosphine oxides. However, the addition of organic phosphorous into molding compounds tends to increase the water absorbing property of the plastic encapsulants, increasi
Characteristics of additives used in the processing of PVC
2019 / 04 / 15
PVC processing requires the use of many additives, thanks to which it is possible to obtain products for different purposes and with different levels of flexibility.PVC is very easily modified and therefore its properties can be freely customized to very different requirements depending on the intended use.Modification is accomplished through the appropriate selection of PVC blend components.A variety of stabilizers, plasticizers, impact and flow modifiers, fillers, and other additives are used to produce PVC plastics. A feature that distinguishes PVC from other thermoplastic materials is the ability to modify its physical and mechanical properties via plasticizing, which has long been a widely used means of modification. Plasticizers are added to PVC in order to achieve the required level of flexibility of the end product.Their main task is to decrease the Tg (the glass transition temperature) of the PVC, which in turn leads to a lowering of the gelling and moulding temperature during processing.This also leads to a permanent improvement of the properties of the polymer, including its flexibility, impact resistance and resistance to low temperatures. Plasticizers can be classified based on different criteria, such as: - process characteristics (high-temperature, low-temperature plasticizers), - type of chemical (phthalat
2019 / 04 / 08
PVC Stabilisers are added either directly into PVC or in combination to prevent oxidation, chain scission, uncontrolled recombination, and cross-linking reactions caused by photo oxidation. Essentially, they protect PVC from the harmful effects of extreme temperature and ultraviolet radiations. PVC Stabilisers are of different types like Heat Stabilisers which are mainly used in Construction projects. Antioxidants are PVC Stabilisers that prevent oxidation of PVC from taking place due to atmospheric oxygen. Hindered amine light stabilizers are PVC Stabilizers that scavenge radicals produced by weathering. The next type of PVC Stabilisers are UV absorbers. They dissipate energy absorbed by UV rays. Antiozonants are PVC Stabilisers that prevent degradation of materials cause by Ozone gas present in the atmosphere. Lastly, PVC Stabilisers are available in the form of Organosulfur Compounds that thermally stabilize polymers. Usage PVC Stabilisers are mainly used in the manufacture of Pipes and Fittings, Window Profiles, Rigid and semi-rigid films, wires and cables, coatings, and flooring etc. PVC Stabilisers are available in the form of Heat and UV Stabilisers, Flame Retardants, Smoke Suppressants, Plasticizers, Processing Aids, Impact Modifiers, Thermal Modifiers, Pigments, and Fillers that are added to PVC for strengthening purposes. The applications of a PVC Stabiliser are in all places where PVC is used. PVC is widely used in construction material, medical devices, children`s toys, protective housing for cables and wires, manufacture of credit cards etc. PVC is also used in rubber seals, vinyl fabrics, and automotive parts. Impact Modifier/Processing Aid PVC Stabilisers provide softness and flexibility that PVC does not normally have.
Soft PVC: A material for living
2019 / 03 / 25
Products made from soft PVC are a staple of everyday life and range from premium imitation leather to robust flooring, modern wallpaper and hygienic wound dressings. Soft PVC combines high quality with sophisticated visual standards. Other benefits of this flexible plastic include its excellent weather resistance and long lifespan. PVC floors are particularly easy to clean thanks to their smooth surface, ensuring a high hygiene standard combined with low operating costs, which makes them a popular choice for public buildings. Solid material stabilizers for soft PVC Our intense research activities in this field have yielded a range of innovative solutions for soft PVC, such as one-pack stabilizers on a calcium/zinc basis and organically based stabilizers, all ensuring excellent initial colour and colour fastness as well as a high level of UV resistance. More benefits for our customers thanks to one-pack stabilizers As a future-orientated enterprise, we have gone one step further and opted for the exclusive use of calcium-based solid material stabilizers also for soft PVC applications. The main components of Novista's Calcium-Zinc and organic-based material stabilizers are positively listed and thus can also be approved for food contact. The one-pack system comprises several additives at the right mixing ratio in a single product. This means that customers benefit from more efficient warehousing, lower costs for mixing units and the option of fully automated mixer filling.
Cable: Insulating and sheathing mixtures from PVC
2019 / 03 / 18
Polyvinyl chloride is one of the most frequently used polymers for cables. Nearly 90 percent of all cables for voltages of under 1000 are PVC-insulated. PVC is the material of choice for both insulation and sheathing mixtures up to the high-voltage range. PVC cables are used as underground cables, installation cables and heat conductors. Their area of application is immense, ranging from telecommunications all the way to the automotive industry. The most important challenges include tough mechanical stress as well as great temperature fluctuations. In the PVC cable segment, Novista offers standard stabilizer systems (e.g. calcium/zinc) as well as customer-specific solutions. Our products guarantee full operability in all conditions. PVC cables – your benefits high insulating capacity excellent mechanical properties long lifespan, highly resilient highly cost-effective Influence of PVC stabilizers Stabilizer systems have a significant influence on the application spectrum and the performance of PVC cables. With compounds on the basis of our calcium/zinc systems, we are able to offer customers a cost-effective solution that fulfills all the requirements of the highly regulated cable sector.
Reasons and solutions for the precipitation of flame retardants in PP materials
2019 / 03 / 16
Flame retardant PP material is favored by more and more manufacturers because of its fine density, excellent weather resistance and low comprehensive price. It has successfully replaced flame retardant PS and flame retardant ABS in many applications. Behind the rise of flame-retardant PP materials, there may be a problem that is often encountered. That is the problem of flame retardant material precipitation, which is more obvious in halogen free flame retardants. The precipitation of flame retardants not only affects the normal production, but also affects the normal production in the process of injection molding, such as powder agglomeration, mold sticking and so on. In the finished products, it often precipitates and produces white mist like substances, which affect the appearance of products and cause the decrease of flame retardancy. Before solving the problem of flame retardants, we first discuss two important factors that affect the precipitation problem: 1. Compatibility of flame retardants with PP base resin Flame retardants are generally two states in the PP resin: the resin is filled in the form of a similar packing and the other is dispersed uniformly in the melting state. As PP is a nonpolar material, there will be a problem of interfacial compatibility between polar flame retardants and PP. The worse the interfa
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Email:manager.han@novistagroup.com
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.