Gelcoat is used as a top coat over fibreglass and composite materials. Gelcoats are isophthalic resin based adhesive that give a smooth glossy finish. The Neutral base means that liquid or powder piments can be added to the gelcoat, neutral base only means that the gelcoat is unpigmented not "clear" gelcoat. Unwaxed gelcoat does require air dry in the final layer of application to cure hard, if not the surface remains tacky so a second coat can be applied without preparation. Requires air dry 2.5% v/v to cure hard.
*THE MEKP CATALYST MUST BE USED IN THE CORRECT QUANTITY, OR THE RESIN OR GELCOAT WILL NOT CURE*
| Catalyst Volume | 25°C | 20°C | 15°C | 10°C |
|---|---|---|---|---|
| 10 ml per litre or 10 drops per oz. | 30 min. | 2 hr. | 4 hr. | --- |
| 15 ml per litre or 15 drops per oz. | --- | 30 min. | 2 hr. | 4 hr. |
| 20 ml per litre or 20 drops per oz. | --- | --- | 40 min. | 2 hr. |
NOTE: Working time is approximately 25% of above cure times. Avoid working in extreme temperature or direct sunlight.
WARNING: MEKP Catalyst is a hazardous substance. Use with extreme caution. Contact with eyes may cause blindness. In case of contact, flush with water, consult physician immediately. Vapour is harmful, use adequate ventilation during application.
Polyester Gelcoat over 4L requires dangerous goods paperwork if it is being shipped, which includes a dangerous goods charge from the freight company. For specific information and limitations please contact for exact shipping costs.
