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Will my FlowCast SPR project yellow over time?

All epoxies yellow over time. To combat this, we formulated FlowCast SPR with UV stabilizers. These additives absorb UV light and prevent damage to the resin. Eventually, the stabilizers will lose their effectiveness. Adding metallic or liquid pigments to FlowCast SPR will help it resist yellowing better than if it is left transparent. Completed projects should not be kept outdoors.