The most commonly used stabilizers on PVC and WPC foam products are Pb stabilizers and Ca- Zn stabilizers. As environmental protection requirements, calcium-zinc stabilizers got more widespread. Insufficient stabilizer: yellowing of the board surface, high brittleness of the paste and products, reduced strength and low foaming rate; Stabilizer too much:  the blowing agent will decompose in advance, the gas will overflow from the feeding hole and the vacuum hole, and the cavity structure will crack or shrink the mark. Eklingjee offers lead based and Ca/Zn based Stabilizer and our Professional technical team suggest the dosage and other Additives to improve the Quality.