Add Wish List Quick view + Quick Add EPS 411 Foam Sealer The 411 Microsphere Blend is a low density filler used as a thickening agent with Epoxy Resin to create a lightweight filling putty that is used to seal the blank in preparation of glassing. Provided... MSRP: Was: Now: ¥6,082.7910 - ¥19,796.7198 + Quick Add Compare