| Resin Grade | Manufacturer | Category | Trademark |
|---|---|---|---|
| Hapweld™ 661 | Hapco Inc. | TP, Unspecified | Hapweld™ |
| Hapweld™ 602 | Hapco Inc. | TP, Unspecified | Hapweld™ |
| Hapweld™ 390 | Hapco Inc. | TP, Unspecified | Hapweld™ |
| Hapweld™ 38 | Hapco Inc. | TP, Unspecified | Hapweld™ |
| Hapweld™ 39 | Hapco Inc. | TP, Unspecified | Hapweld™ |
| Hapweld™ 37 | Hapco Inc. | TP, Unspecified | Hapweld™ |
| Hapweld™ 1384 | Hapco Inc. | TP, Unspecified | Hapweld™ |
| Hapweld™ 36 | Hapco Inc. | TP, Unspecified | Hapweld™ |