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.
| Property | Value |
|---|---|
| Chemistry | Ceramic-loaded elastomeric rubber |
| Volume solids | 50% |
| VOC | 419 g/L · 3.5 lbs/gal |
| Tensile strength | 1,765 psi |
| Components | One-part (no curing agent required) |
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.
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.
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