1. What is Techno Epoxy Crack & Joint Filler (Techno Crack Repair) used for?
It’s a two-component, 100% solids, semi-rigid, self-levelling epoxy for filling cracks and control joints in concrete. It’s formulated for horizontal applications to help protect joint edges and reduce spalling in trafficable floors.
2. Where can I apply it?
It’s suitable for concrete construction joints, control joints, and cracks in concrete, and can also be used as a traffic loop sealant or wire sealant (where specified).
3. How much product will I need?
Coverage depends on joint width and depth. The TDS provides an approximate litres per 30 m of joint table across common joint dimensions, use that as your estimating guide.
4. How do I mix and apply it?
Prep: saw-cut/chase to sound edges, remove dust/laitance/loose material, and vacuum clean.
Set depth & mask: use a suitable backer rod where required and mask joint edges.
Mix: pre-mix Part A and Part B separately, then combine at 1:1 by eight, mixing until uniform (do not thin).
Apply/finish: pour into the joint/crack and allow to self-level; use a squeegee/putty knife to help and avoid air entrapment. Remove masking tape before cure; once cured, shave/grind flush if needed prior to coating/overlay.
5. What are the key cure times and limitations?
At 24°C, pot life is 30–45 min, gel time 40–50 min, and tack-free time 5–6 hours, protect from traffic until tack-free (temperature affects cure).
