Physics, asked by kumar258717, 3 months ago

Hardened and glass like resin.​

Answers

Answered by adityaparvinaikar
7

Answer:

Polyester and polyurethane resins both cure very hard. When fully cured, they can have the hardness and clearness of glass. In fact, both can be polished to a high gloss with a polishing wheel and the appropriate compound

Explanation:

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