Mon - Fri 9:30 - 20:00
srmgroupllc001@gmail.com
(808) 852-7910
Customer focused services
Customer focused services

SP Liquid Membrane®

Seamless Waterproof Membrane for Roofs and Walls

SP Liquid Membrane®

What is SP Liquid Membrane®?

SP Liquid Membrane® is a tough, one-part elastomeric hydrocarbon rubber coating loaded with ceramic pigment. It delivers superior adhesion, flexibility, and resistance to abrasion and impact — and can be used as a primer, a standalone one-coat system, or a topcoat over other coatings. No curing agent needed; mix-and-apply.

Technical Specifications

PropertyValue
ChemistryCeramic-loaded elastomeric rubber
Volume solids50%
VOC419 g/L · 3.5 lbs/gal
Tensile strength1,765 psi
ComponentsOne-part (no curing agent required)

Compatible Substrates

Typical Uses

Where It Shines in Hawaiʻi

For older roofs that leak intermittently — particularly tar, EPDM, and TPO surfaces common on Hawaiʻi commercial buildings — SP Liquid Membrane® provides a seamless rubber waterproofing layer that bonds where most coatings wouldn’t. It also serves as the protective topcoat over HPC® on coastal industrial pipe systems.

Still have questions?

Our team is ready to help you with any inquires you my have.

FAQ

Got Questions? We’ve Got Answers

Find answers to common questions about our services, processes, and how we work with clients across various industries.

Yes. It can be applied as a one-coat system on roofs with minimal surface preparation. For maximum life and energy savings on metal roofs, pair it with Super Therm® for solar heat blocking.

Yes. TPO and EPDM are listed as compatible substrates. Surface should be clean and free of loose material before application.

Not necessarily. It can be standalone, a primer, or a topcoat — three roles depending on the system being built.

→ Super Therm® · SP Seal Coat · Super Base · Roofing · Waterproofing & Marine Coatings