Surface Ripple–Technical Problem of Fiberglass Compression Molding

Condition Description Reasons Solution
1 Ripple on the long,vertical and thin surface,which is at right angles to the direction of flowing.Also due to other adverse flow conditions (wall thickness difference) may result in Irregular surface ripple. Complex design of the product prevents uniform material flowing. In most cases it cannot be completely eliminated, but can be improved in the following ways: Increase pressure, change the feeding position,to use low shrinkage or no shrinkage resin.
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Sink Marks–Technical Problem of Fiberglass Compression Molding

Condition Description Reasons Solution 1 The depressed deformation on the surface,ribs,……

Why do Resins cure quickly in barrels,but slowly after pasting fabric?

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