Plastig Thermosodol
Thermosetting Plastic
Bydd plastigion thermosodol yn llosgi pan gânt eu gwresogi. NID oes modd eu hailgylchu.
| Byrfod | Enw Llawn | Cryfder | Gwendid | Cynhyrchu | Enghraifft |
|---|---|---|---|---|---|
| UF |
Wrea Fformaldehyd 
|
Anhyblyg Gwydn Gwrthsefyll gwres Ynysydd |
Brau Dim llawer o liwiau |
Mowldio cywasgedd |
Ffitiadau trydanol Adlyn |
| MF |
Melamin fformaldehyd 
|
Gwydn Gwrthsefyll crafu Caled Di-draidd Diogel i gadw bwyd |
Dim llawer o liwiau Ddim yn ddiogel mewn microdon |
Mowldio cywasgedd |
Llestri bwrdd Arwyneb laminedig Capiau poteli |
| PR |
Resin Polyester 
|
Anhyblyg Gwrthsefyll gwres a chemegau Anystwyth Ynysydd |
Brau heb ei atgyfnerthu |
GRP Mowldio trosglwyddo resin |
Corff cychod Corff ceir Castin |
| ER |
Resin Epocsi 
|
Cryfder uchel Gwrthsefyll cemegau’n dda Gellir ei atgyfnerthu Ddim yn crebachu llawer |
Drud |
GRP Chwistrellu resin Bag gwactod |
Adlyn Gorchudd amddiffynnol Cylched trydanol Gwneud modelau Darnau o gorff ceir F1 gyda ffibr carbon |
Thermosetting plastics burn when heated. They may NOT be recycled.
| Abbreviation | Full name | Strength | Weakness | Manufacture | Example |
|---|---|---|---|---|---|
| UF |
Urea Formaldehyde
|
Rigid Durable Heat resistant Insulator |
Brittle Limited colours |
Compression moulding |
Electrical fittings Adhesive |
| MF |
Melamine formaldehyde
|
Durable scratch Resistant Hard Opaque Food safe |
Limited colours Not microwave safe |
Compression moulding |
Tableware Laminated surface Bottle caps |
| PR |
Polyester Resin
|
Rigid Heat and chemical resistant Stiff Insulator |
Brittle without reinforcing |
GRP Resin transfer moulding |
Boat hull Car body Casting |
| ER |
Epoxy Resin
|
High strength Good chemical resistance Can be reinforced Low shrinkage |
Expensive |
GRP Resin injection Vacuum bagging |
Adhesive Protective covering Electrical circuit Model making F1 car body parts with carbon fibre |