8.30 - Plastics and Vacuum Forming - PLASTICS
Fill in the blanks using the words and phrases below.

• Has plastic memory • Can be reshaped by applying heat • Oil • Salt • Once shaped by heat can not be reshaped • Remove heat and raise the platen • Clamp down the thermoplastic, so it is air tight

• Place the mould on the platen • Turn off vacuum, let it cool and then take it out • Turn the vacuum on. Plastic forms around the mould. • Water • Apply heat until the plastic softens • Air

What is plastic made out of?

1.______2._______3._______4._______are processed to produce powder, resins and granules.

There are two main type of plastics. They are:

1.Thermoplastic = ___________________________________________

2.Thermosetting plastic = _______________________________________

VACUUM FORMING
Plastics can be formed in many ways. One method of forming thermoplastics is by vacuum forming.

How to use a vacuum former 1. _______________________ _________________________ 2. _______________________ _________________________ 3. _______________________ _________________________ 4. _______________________ _________________________ 5. _______________________ _________________________ 6. _______________________ _________________________