The discussion centers on the curing process of polyester resin exposed to cold temperatures. Users confirm that while low temperatures can delay curing, the resin can still eventually cure if proper heating methods are applied. Key recommendations include maintaining a stable temperature of 20°C for at least 6 hours and utilizing UV grow lights to accelerate the catalyst reaction. The importance of proper mixing of the catalyst with the resin is emphasized, as poor mixing can significantly hinder the curing process.
PREREQUISITESThis discussion is beneficial for resin artists, DIY enthusiasts, and professionals working with polyester resin who seek to optimize their curing processes and understand the implications of temperature on resin chemistry.
Thanks very much for both those links!jedishrfu said:
No. You preserved it.mess said:I also left the catalyst and resin outside in below freezing temperature, is there a chance i damaged it?
Baluncore said:No. You preserved it.
The problem with cold resin is mixing the catalyst into the thick cold resin. Poor mixing requires longer for the catalyst to diffuse or migrate through the mix. Diffusion is very poor at low temperatures. The heat generated by the reaction will accelerate the reaction, unless that heat is rapidly lost to a cold environment, in which case you must wait for the environment to warm.
I once waited for a week during a cold snap for polyester resin to set. It took another week before I could remove it from the mold.