What temperature must PVC be heated to before it can be cooled?

• A. 100 degrees F
• B. 200 degrees F
• C. 300 degrees F
• D. 500 degrees F

Answer: (B)

PVC needs to be heated to a temperature where its molecules gain enough mobility to soften, but not so hot that the material begins to decompose. About 200 degrees Fahrenheit provides that balance: it’s high enough to make the PVC pliable so you can shape or form it, and low enough to avoid degradation. If you heat it only to around 100°F, it won’t soften adequately for shaping. Heating to 300°F or 500°F is risky because PVC can begin to break down and release fumes before you can safely cool and set the shape. Once it’s softened, you can cool it to retain the desired form.