Strengths
What it’s good at
Indoor and outdoor waterproof sealing for kitchen, bath, window, door, auto, and marine applications — 30-minute water ready and mold/mildew resistant.
Limits
Where it falls short
Not paintable; not for structural load-bearing, direct fuel immersion, or continuous water submersion under hydrostatic pressure.
Specifications
Manufacturer specifications
Every number below is quoted from the manufacturer’s own documentation, linked at the end of the row.
- Initial set
- 15 min — Skin-over time 10–25 min; water-ready in 30 min[1]
- Full cure
- 24 h — Standard functional cure for a 3/16-inch bead in 24 h[1]
- Max service temperature
- 350 °F — Service temperature range −40 °F to 350 °F[1]
- Min application temperature
- 40 °F — Best applied above 40 °F[1]
- Water resistance
- 100 % waterproof; water-ready in 30 minutes; mold and mildew resistant[1]
- Cured color
- Clear translucent (also available in White)[1]
How long it takes
Working time, clamp time, and full cure are different things — this is the order you experience them in.
- Initial set15 min
- Full cure24 h
Sources
Where these facts come from
- [1]Gorilla 100% Silicone Sealant Technical Data Sheet — The Gorilla Glue Company · Technical data sheet · Retrieved 2026-08-14
