Building Materials
Acrylic sheets

All of these
Possess 10 to 17 times greater breakage resistance than that of glass of equivalent thickness
Possess the light transmission rate of 93%
Are generally unaffected by most household detergents

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Building Materials
The thermosetting plastic

Chars at 343°C
All listed here
Becomes rigid when moulded at suitable pressure and temperature
At 127°C to 177°C permanently set and further application of heat does not soften it

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