Resins Heat Resistance
HDT (heat deflection temperature) of our resins where applicable
Please note this list was compiled and correct as of 14 November 2022. please check the products data sheet to determine suitability and to confirm the below approvals are still obtainable when ordering.
If any of our resins featured on our website are not shown below it may well be because they have not been tested for Heat resistance. Your own tests would have to be carried out if HDT is not mentioned in the products technical data sheet.
Products that have been tested are as follows:-
| POLYESTER RESIN | Deflection Temperature under load (1.80 MPa) ºC | Curing schedule for optimum | link to product and data sheets |
| Crystic 397pa chem & heat resistant | 117 |
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| Crystic 1355pa fire retardant | 80 | 24hrs at 20ºC, 5hrs at 80ºC, 3hrs at 120ºC | |
| Crystic 471pa | 78 | 24 hrs @ 20ºC, 5 hrs @ 80ºC, 3 hrs @ 120ºC | |
| Crystic 489pa | 77 |
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| Crystic 491pa | 77 |
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| polyester Infusion resin (for infusion purposes only) | 75 | 24hrs at 20ºC, 5hrs at 80ºC, 3hrs at 120ºC | |
| Lloyds approved clear 2-446pa | 67 |
| lloyd's-approved-polyester-resin-inc-catalyst-crystic-2-446-pa |
| General purpose 28500pa | 67 |
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| Casting resin | 63 | Post cured 24 hrs. at RT | |
| 4010pa tooling resin | 63 | 16hrs @ 40oC | |
| polyester surf resin | 62 | 24 hrs @ 25ºC | |
| Encore 30 | 58 | cured for 2hrs at 120°C | encore-30-clear-polyester-resin-lloyd's-approved-inc-catalyst |
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| EPOXY RESIN |
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| Sicomen hi temperature epoxy | 120°C - | 48 h @ 25°C + 24 h @ 30°C + 12 h @ 50°C ( release possible at this stage, better if post cured | |
| G-flex 650-8 | 52 | leave til full hardness 5-7days | |
| WEST SYSTEM 105/206 | 51 | leave til full hardness 5-7days | |
| WEST SYSTEM 105/205 | 48 | leave til full hardness 5-7days | |
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| VINYLESTER RESIN |
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| Atlac 590 | 140 | 24 hrs at 20°C followed by 3 hrs at 100°C and 1hr at 150°C | |
| Atlac 580 | 115 | 24 hrs at ambient temperature, followed by a postcure of 3 hrs at 100°C. | |
| VE 679-03PA | 97 | 24hrs @ 20 °C, 5 hrs @ 80 °C, 3 hrs @ 120 °C | crystic-ve679-03pa-dcpd-modified-vinyl-ester-resin-for-infusion-inc-catalyst |
| VE 679PA | 94 | 24hrs @ 20°C, 5 hrs @ 80°C, 3 hrs @ 120°C | |
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| GELCOATS |
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| 69pa chemical resistant | 96 | 24hrs @ 20°C, 5 hrs @ 80°C, 3 hrs @ 120°C | |
| GT-600 (all our coloured gelcoats | 75 | 24hrs @ 20°C, 5 hrs @ 80°C, 3 hrs @ 120°C | |
| 65pa our clear and white 337 | 75 | 24hrs @ 20°C, 5 hrs @ 80°C, 3 hrs @ 120°C | |
| 252pa Epoxy compatible | 71 | 24hrs @ 20°C, 5 hrs @ 80°C, 3 hrs @ 120°C |