Talk Composites - The Forum for Advanced Composites

Storing resins and gel coats in hot temps

http://www.talkcomposites.com/Topic28870.aspx

By drippy - 8/7/2018 7:41:47 PM

Well it is summer which means it's hot!  Well 115 degrees fahrenheit. Making where I store my materials around 105-120 degrees depending where the sun is sitting. Am I gonna have issues with my materials over an extended amount of time away from the normal shelf life?  I am using clear poly gels, tooling poly and VE tooling gel coat. Infusing with VE resin and west systems epoxy. I don't use a lot of epoxy and that can be stored in a cooler area but the drums of stuff really can't fit in a cooler section.
By drippy - 8/9/2018 5:35:13 AM

 
Hanaldo - 8/9/2018 4:30:25 AM
I actually store a lot of my products in the freezer at -18C. My more expensive polyester/vinylester based coatings like tooling gelcoat, Duratec primers/top-coats, etc. Make sure they are really well sealed so no moisture gets into them and they aren't worried at all. Let them defrost for a day before using them and they last virtually forever.

My cheaper and easier to obtain products like regular gelcoat and laminating resins etc. it doesnt worry me as much if they go off before I use them, so they live in the shed. I havent had any of them go off before I finish them yet though.

That's really good to know. I can get freezers for a ton cheaper than fridges.. I'll just keep a single 5 gallon pail of each of what I use everyday and put the rest in a freezer.