Side-by-Side
Flex Glue vs Epoxy Instant Mix 5 Minute
Compare cure times, application limits, and real-conditions performance for Flex Seal's Flex Glue and Loctite's Epoxy Instant Mix 5 Minute. Adjust the sliders below for your actual temperature and humidity.
SpecificationFlex Glue5 Minute
ManufacturerFlex SealLoctite
Full cure (lab)24h24h
Open time10 min★7 min
Clamp / tack time—20 min
Dry to touch60 min—
Min application temp★0°F39°F
Max application temp★150°F95°F
Safety flagsNoneAmine blush
Compare at Your Conditions
Which should you choose for cure time?
- - Both products list the same baseline full cure time of 24h, so temperature and humidity may be the deciding factors.
- - Flex Glue allows the lower minimum application temperature (0°F).
- - Flex Glue gives more working time before assembly pressure or tooling becomes urgent.
- - Watch for amine blush risk in humid epoxy work.
Flex Glue has a 24h full cure time with a 10-minute open time.
Epoxy Instant Mix 5 Minute has a 24h full cure time with a 7-minute open time. Watch for amine blush in humid conditions.
These products serve different purposes — check each product's individual page for full substrate compatibility details before deciding.
Browse related product categories
Flex Glue data from manufacturer TDS · last verified Jun 2026.
Epoxy Instant Mix 5 Minute data from manufacturer TDS · last verified Jun 2026.
Important: Results are estimates only. Always follow manufacturer instructions. Not suitable for structural, load-bearing, or safety-critical applications.