Side-by-Side
Flex Glue vs Titebond Instant Bond Medium Jet Black
Compare cure times, application limits, and real-conditions performance for Flex Seal's Flex Glue and Franklin International's Titebond Instant Bond Medium Jet Black. Adjust the sliders below for your actual temperature and humidity.
SpecificationFlex GlueJet Black
ManufacturerFlex SealFranklin International
Full cure (lab)24h★8h
Open time10 min★1 min
Clamp / tack time—1 min
Dry to touch60 min★1 min
Min application temp★0°F50°F
Max application temp★150°F85°F
Safety flagsNoneNone
Compare at Your Conditions
Which should you choose for cure time?
- - Titebond Instant Bond Medium Jet Black has the faster baseline full cure (8h vs 24h).
- - Flex Glue allows the lower minimum application temperature (0°F).
- - Flex Glue gives more working time before assembly pressure or tooling becomes urgent.
Flex Glue has a 24h full cure time with a 10-minute open time.
Titebond Instant Bond Medium Jet Black has a 8h full cure time with a 1-minute open time.
These products serve different purposes — check each product's individual page for full substrate compatibility details before deciding.
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Flex Glue data from manufacturer TDS · last verified Jun 2026.
Titebond Instant Bond Medium Jet Black 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.