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Fifteen questions about wood plastic composite materials
Wood plastic composite materials are also called: plastic wood, environmentally friendly wood, technical wood, recycled wood, plastic beautiful wood or poly wood. Its standard English name is: Wood & Biofiber Plastic Composites, which is commonly known as WPC in the industry.
Wood plastic composite materials are based on primary biomass materials such as wood chips, bamboo chips, wheat straw, rice bran, peanut hulls, cotton straw, etc., and use polymer interface chemistry and the characteristics of plastic filling modification to mix a certain proportion plastic base material, a basic material with various shapes and structures that is reversibly recycled and processed after a special process. It not only maintains the appearance and feel of solid wood decking, but also has good moisture resistance, water resistance, acid and alkali resistance, antifungal, antistatic, and insect resistance. The wood plastic composite products have high fire resistance, pollution free, pollution free, and recyclable.
1. What is wood plastic composite? Where is WPC used?
Wood plastic composite is a kind of building material formed by extruding plastic and wood fiber in a certain proportion. Due to the two characteristics of plastic water resistance and corrosion resistance and wood texture, it has become the first choice for outdoor building materials (floors, fences, chairs and benches or waterfront landscapes, etc.).
2. What colors are available for WPC and do I need paint?
Unlike wood, wood plastic composite does not require paint to have a variety of colors to choose from (sometimes the difference in color will affect the price). And because of the special molding process of wood plastic composite, there is no discoloration problem in it.
3. Does wood plastic composite burn more easily than wood?
Wood plastic composite profiles are C level building materials, and their burning conditions are similar to wood. After the combustion characteristic experiment, wood plastic composite is not more burnable than wood, and the burning temperature of wood plastic composite needs to reach 86 degrees.
4. Is quarantine required during export? Does it need fumigation? Do you need special supporting documents?
No, unlike natural wood, due to the special process and formula of wood plastic composite, it is a fumigation free product when exported and does not require any special certification documents.
5. Is wood plastic composite made of recycled materials?
Yes. wood plastic composite is processed using recycled plastic and natural plant fibers such as waste wood chips or rice bran as materials.
6. What is the difference between wood plastic composite and plastic wood?
Unlike plastic wood (plastic wood is made of 100% plastic), wood plastic composite is made of plastic and wood chips in a ratio of approximately 1:1. Because of the natural fiber composition, wood plastic composite has better UV resistance and lower thermal expansion and contraction performance, and it is easy to process like wood.
7. How long is the service life of wood plastic composite outdoors?
WPC is widely used outdoors, and most of it is used in crowded public places. It is always tested by the flow of people and the environment. In this high density occasion, the lifespan of WPC can reach 5 years. When used in private places or in areas with less traffic, the life span of wood plastic composite can be as long as 10 years.
8. Is wood plastic composite an environmentally friendly material? How to deal with waste wood Plastic composite materials? Will waste wood plastics cause pollution to the environment?
The environmental protection significance of wood plastic composite is multiple. On the one hand, it consumes waste plastic and wood powder that will pollute the environment. On the other hand, it can effectively replace the use of wood outdoors, thereby saving a lot of precious natural resources. Because it does not contain any toxic ingredients, it can be treated in the same way as other ordinary construction waste, will not cause any pollution to the environment, and can be recycled and reused.
9. What is the weight of wood plastic composite compared with ordinary wood?
Compared with ordinary wood, the ratio of wood plastic composite is much more important, usually above 1.1, while the specific gravity of ordinary wood is 0.4~0.7. Even the hardwood with a large specific gravity has a specific gravity of only about 1.0. Therefore, wood plastic composite is much heavier in the same volume.
10. How to process WPC? Do you need special tools?
Wood plastic composite is as simple and easy to process as wood, and in some respects even easier. Only use ordinary wood processing tools to cut, drill, etc.
11. What types of screws are suitable for wood plastic composite materials?
It is recommended to use high quality screws such as stainless steel, hot dip galvanized, etc., especially recommended to use threaded screws, which will help increase the nail holding force of the screws.
12. Is the water absorption rate of wood plastic composite high?
As a plastic layer is wrapped around natural fibers such as wood fiber, wood plastic composite has a very low water absorption rate and is very suitable for waterfront landscapes.
13. Will low temperature weather affect WPC?
Wood plastic composite still performs well even in low temperature weather. However, because plastic accounts for more than 50% of the composition of wood plastic, it will become harder to punch in extremely low temperature weather. In this case, we recommend to advance drilling.
14. Will the hot climate affect WPC?
Proper span and head to head, side to side gaps are to offset the effect of high temperature on wood molding. When the temperature rises, the toughness of wood plastic composite will increase, and there will be a slight expansion. Please consult sales staff before installation.
15. How to maintain WPC?
Even if it is exposed to the wind and sun, the wood plastic composite will not rot, chip or crack. In addition, it also has the ability to resist ultraviolet rays and is maintenance free.