GREENTECH SIMPLE FIX CTF-808 is a general use cementitious, water resistant, and single component tile adhesive achieving C1 class adhesive strength.  It is designed simply to mix with water to give strong, non-slip, and highly workable tile adhesive mortar. Suitable substrates are concrete, cement plasters, gypsum boards, brickworks and ALC blockwalls.  For exterior or large size tile fixing, can mix with GREENTECH Bond Mix PBM-18 to increase bond strength and flexibility.