LATICRETE HYDRO BARRIER™ — 3.5 Gallon is a self-curing liquid rubber polymer used to create a flexible, seamless waterproofing and anti-fracture membrane beneath tile and stone. It is suitable for approved interior/exterior horizontal and vertical applications and is IAPMO approved as a shower-pan liner.

LATICRETE lists ANSI A118.10 waterproofing and ANSI A118.12 crack-isolation performance, with anti-fracture protection up to 1/8" over non-structural shrinkage cracks.

Contractor Notes

• Apply over approved, properly prepared substrates.
• Observe required reinforcement at transitions where specified by LATICRETE.
• Allow the membrane to change to its cured darker-blue color before subsequent work.
• Follow current flood-test timing and wet-film-thickness requirements.

Frequently Asked Questions

• Is HYDRO BARRIER a sheet membrane? No. It is a liquid-applied waterproofing and anti-fracture membrane.
• Does it meet ANSI waterproofing requirements? LATICRETE lists compliance beyond ANSI A118.10 and A118.12.
• Can tile be bonded directly to it? Yes, after full cure and when installed per manufacturer requirements.

Documents & Resources

• LATICRETE HYDRO BARRIER Product Page