What is the reason for the many pits after the resin dries?
There are many reasons that can lead to uneven surface after resin curing, but the root cause is still due to the shrinkage of polyester resin. The shrinkage of polyester resins in different systems varies, and the morphology of the reinforcement also affects the final effect of resin shrinkage.
As shown in the above figure, the pit is a resin pit caused by insufficient reinforcement or filler.
If you encounter any questions about resins, feel free to contact us and we are very happy to answer them for you.
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