| Condition | Description | Reasons | Solution |
| 1 | The depressed deformation on the surface,ribs,raised part and/or the back side(shiny or dark). | uneven shrinkage during molding. | use low or no shrinkage resin in formulation for sheet molding compound(SMC) |
| 2 | increase the temperature of Cavity or Core and to bring the temperature difference between Cavity and Core to 5–6℃. | ||
| 3 | increase the pressure and shorten the length of glass fiber. | ||
| 4 | improve the mold design,change the feed position. | ||
| 5 | narrow the gap between core and cavity of fiberglass mold. |
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We, Shanghai Olimy Co., Ltd. is the supplier for plastic injection molds&parts,carbon fiber parts,fiberglass products, including parts made via hand lay up, RTM, SMC(compression moulding) processes.