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General Purpose Unwaxed Polyester Resin
$75.00 CAD - $250.00 CAD$0.00 CAD
Unwaxed General Purpose Polyester Resin is mixed with MEKP catalyst to apply fibreglass and bond other composite materials. Unwaxed polyester remains tacky after it has completed its cure so that more layers of polyester can be applied without having to sand or acetone wipe to remove wax. As a final layer of the lamination, AIR DRY must be added unwaxed resin to create a air tight barrier which forces all of the lower layers of polyester resin to cure as one unanimous composite construction. This process is called "kicking down" and it is ideal for multiple layers of fibreglass and mold making processes.
The table below contains the catalyst chart when using MEKP to catalyze Polyester Resins & Gelcoats.
*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.
General Purpose Polyester Resin 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.