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Yellow foaming agent HF-640 product description
1.The foaming agent is used for rigid PVC low foaming wide board and profile extrusion
2.HF640 is one kind of balance foaming agent of heat absorption and release.The foaming is more controllable and
more stable,and the crust hardness can reach the Shore D55~65,the bubbles are fine and uniform,for thick wall products will not occur middle color changing phenomenon,it can be made in white plastic foam products.
3.The best foaming effect processing temperature is at 150-180 centigrade
4.Mechanical properties: foam products can form independent spherical bubble chamber and form like honeycomb three-dimensional structure,and can obtain good mechanical strength.