Summary：
(8) Cracks and cracks ◇ Excessive demoulding, the impact of external force on the surface of the gel coat.◇ The gel coat is too thick and the exothermic temperature is high.◇ The impact force inside the structural layer causes spider web-like cr…
(8) Cracks and cracks
◇ Excessive demoulding, the impact of external force on the surface of the gel coat.
◇ The gel coat is too thick and the exothermic temperature is high.
◇ The impact force inside the structural layer causes spider web-like cracks on the surface of the gel coat.
◇ There are cracks on the mold surface.
◇ The structural layer has insufficient rigidity and insufficient curing.
◇ Poor adhesion between gel coat layer and structural layer.
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