Glass Fiber Reinforced Concrete – Advance Techniques – Self Consolidating Face Coat / Backcoat There are situations where you will need to spray a facecoat and hand lay a backcoat, that said if you don’t have to don’t. One technique made possible by Trinic’s GFRC Admix is to self-consolidate a face coat, work it up the edges using a chip brush, then self-consolidate a back coat. There has been some confusion within the GFRC industry about the flexural strength of self-consolidated backcoats. I’v