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. Chars 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. Chars at 343°C
4. All the above