| Condition | Description | Reasons | Solution |
| 1 | a semicircular swell on the surface of solidified fiberglass compression molding part. | Entrapped air between fiberglass sheets. | Remove the interlayer air by pre-pressing method and reduce the feeding area to facilitate the discharge of air. |
| 2 | The tooling temperature is too high (evaporation of monomer). | low tooling temperature. | |
| 3 | Solidifying period is too short (evaporation of monomer). | Extend solidifying period. | |
| 4 | dry fiber | Reduce the viscosity of the resin.Install more work rolls in the impregnation area, and heat the dip rollers.Replace the glass fiber. | |
| 5 | There are burrs in the cavity of fiberglass compression tooling. | Carefully remove the burrs in cavity of tooling. | |
| 6 | Fiberglass sheet is too soft. | Increase the thickening of fiberglass SMC raw material or increase the content of thickener. |
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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.