| A | B |
|---|
| Reaction Injection Molding | Liquid monomers polymerize in a mold. |
| Film Blowing | Extrused polymer is blown onto a film. |
| Extrusion | Liquid polymer is forced through a die under pressure. |
| Injection Molding | Only small amounts of liquid polymer is forced into a mold. |
| Blow Molding | Compressed air spreads a liquis polymer into the mold. |
| Compression Molding | Heat and pressure are applied to a solid polymer in a mold. |
