Molding Process
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Surface scratches of PMMA products
Problem Phenomenon
The surface of PMMA transparent products is prone to scratches, affecting appearance.
Cause Analysis
Although PMMA surface hardness (pencil hardness 3H-4H) is higher than PETG, it is still easily scratched.
Solution
Adopt surface hard coating (silicone or UV curing); product protective film packaging.
Key Takeaway
PMMA surface scratch resistance needs coating protection.
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