| 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. |
Condition Description Reasons Solution Condition Internal Cracking Due to excessive shr……
Condition Description Reasons Solution 1 if there are too many small holes in the surface it ……
1.Low amount or active ingredient of curing agent and accelerator in hand lay up process. The amou……
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.