WEST SYSTEM 411 MICROSPHERE FILLETING BLEND
411 Filleting Blend
WEST SYSTEM 411 is a mixture of silicate microspheres and colloidal silica and when mixed with epoxy resin is used for eneral purpose low density filling, fairing and coving. The colloidal silica in the mixture gives the mixture excellent resistance to sag by producing a thixotropic component to the mix. The blend of silicate microspheres extends the filler and allow for easy sanding after curing.