Building Materials
Plastic asphalt is

A natural asphalt
A refinery product
Used as a water proofing layer over roof
A mixture of cement and asphalt

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Building Materials
The thermosetting plastic

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

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