Merkrete Hydro Guard SP-1 Waterproofing Membrane, 5 Gallon

Merkrete Hydro Guard SP-1 is a fast-drying, thin, load-bearing waterproof and crack isolation membrane composed of modified elastomeric copolymers. With excellent elongation, adhesion and strength properties, Hydro Guard SP-1 provides a 100% waterproof membrane that limits the transfer of substrate cracks to the finished ceramic or stone tile surface. Hydro Guard SP-1 is installed in a liquid state and can be applied to practically any form or irregular shape forming a monolithic waterproof barrier.

Advantages

• Low VOC, Meets SCAQMD Rule 1113 when using Parex USA Non-VOC Colorants
• Built-in antimicrobial for mold and mildew resistance at the substrate
• Water (flood) test after 4 – 6 hour cure (70° F, 50% R.H.)*
• Thin section that does not interfere with elevations
• Bonds directly to metal, PVC, stainless steel and ABS drains
• Interior or exterior
• Adheres to all common surfaces
• Installs quickly; cures in 2 – 4 hours (70° F, 50% R.H.)*
• Fast-drying; foot traffic in 2 – 4 hours*
• Exceeds ANSI A118.10 and A118.12 membrane requirements
• Easy to use; can be applied by trowel, airless sprayer, paint brush and roller
• May be turned up for base flashing and applied to walls for wainscot or shower wall application
• Crack isolation up to 1/8"

Suitable Substrates

*1 Consult the cement backer board manufacturer for installation recommendations and to verify acceptability for exterior uses

*2 Interior use only

*3 Requires the use of 101 Overspray primer