Epoxy resin and hardener formulations have a long shelf life compared to many polymers. The minimum shelf life for the standard INF and LAM products is 3 years for resins and 2 years for hardeners (with the exception of LAM-251-HT). The minimum shelf life for LAM-251-HT and all ADV resins and hardeners is 18 months. Components of PRO-SET LAM-145 may settle during storage. We recommend a visual inspection and to stir the resin as needed.
Store PRO-SET Epoxy resins and hardeners at room temperature (65°F- 85°F) in sealed containers until shortly before use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage (<55°F) may cause the resin to crystallize. Be aware that containers placed near outside walls or on the floor will often be at a lower temperature than the ambient conditions.
If crystallization occurs, warm the resin to 125°F for 8 hours and stir to dissolve crystals. Learn more about identifying and dissolving resin crystallization.
Hardeners may form carbamation when exposed to CO2 and moisture in the atmosphere for extended periods of time. Prevent carbamation by keeping containers sealed and pump reservoirs covered until immediately prior to processing.