... fiber 10% chemical additives (Anti-UV agent, Anti-oxidation agent, stabilizers, colorants, anti fungus agent, coupling agent, reinforcing agent, lubricants...etc.) This material is extruded ... warping, 5.Requires no painting, no glue, low maintenance 6.Weather resistant, suitable from minus 40°C to 60°C 7 ... in different colors 9.Easy to install and clean Weather Resistant WPC Fence(CE Certificate)