Q. The thermosetting plastic (Solved)
1. becomes rigid when moulded at suitable pressure and temperature
2. at 127°C to 177°C permanently set and further application of heat does not soften it
3. charrs at 343°C
4. All the above.
- d. All the above.
1. becomes rigid when moulded at suitable pressure and temperature
2. at 127°C to 177°C permanently set and further application of heat does not soften it
3. charrs at 343°C
4. All the above.