ALPHATEC® 440 is a modified epoxy resin-based adhesive which is used to bond new concrete to old. It has a long pot life of at least 2 hours, which allows it to be applied well before the new concrete is poured.
Has moderately high viscosity, and good wetting characteristics, which enable it to resist the scouring action of pump-placed (or gravity-placed) concrete.
Good bond to concrete, wet or dry
Long pot life; 6 to 8 hours at 25 ºC (77 °F)
2:1 mixing ratio
Easy to apply