Used it on our master shower grout 2 months ago — not a speck of mold returned despite daily steam.
Mark T.
This is the solution I dreamed of 15 years ago when I made Moldy the movie… I use Superstratum to detoxify my own home.
Dave Asprey, Founder of Bulletproof
Sprayed the attic roof trusses after remediation. Incredible peace of mind knowing the barrier is active.
Sarah B.
LAB VERIFIED
Reviewed by independent third-party toxicologists (CTEH): completely safe when used as directed and non-off-gassing once dry.
Third-Party Toxicology Report
Endurance Coating
A water-activated smart polymer barrier for showers, siding, attics, and everywhere moisture keeps coming back.
Non-Toxic
Low VOCs
PFAS-Free
Safe for Children & Pets
Made in USA
Fast Shipping
Protocol Step 1
Clean First, Then Coat.
Endurance Coating needs a clean, mold-free surface to properly anchor.
Spraying over grime or active residue reduces adhesion and shortens how long the barrier lasts.
A quick clean first means the coating bonds right — and lasts as long as it's built to.
Turnkey Solutions
Prefer an All-in-One Room or Bathroom Reset?
Everything you need for one space, packed in a single box. Pick the reset that matches your room and follow the steps inside. Bundle & Save %.
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Field & Lab Verified
Real Results, Not Just Claims.
Four independent tests — in the lab and in real homes — showing what happens when moisture meets the barrier.

Experiment 01 — Wood Chamber Test
Both wood samples were inoculated with Cladosporium spores and placed in a 100% relative humidity chamber for 15 days. The untreated sample was overgrown with heavy mold. The Endurance Pro-treated sample remained 100% clean.

Experiment 02 — 20-Month Exterior Siding
Photographed 20 months after application. Despite persistent rain, snow, UV rays, and temperature swings, the treated section showed zero mold or algae growth, while the surrounding untreated siding was heavily discolored.

Experiment 03 — Georgia Rooftop Case
A customer's roof in Georgia regrew mold annually after pressure washing. Treated with Endurance Coating Pro post-wash, a follow-up photo 12 months later confirmed zero mold regrowth.

Experiment 04 — CONVENTIONAL MOLD SPRAYS VS. COATING
Compared directly against standard commercial mold solutions (6% and 25% Quaternary Ammonium Salts - QUAT). While mold colonized the conventional solutions by Day 3 and completely overwhelmed them by Day 15, the surface protected by Endurance Coating remained sterile with zero fungal growth.
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SMART POLYMER TECHNOLOGY
How Endurance Coating’s Invisible Film Works
Endurance Coating dries into an invisible surface film engineered to be microscopic and breathable. This cured dry coating film acts as a long-term protectant against mold growth—not a chemical killer—letting surfaces breathe while eliminating the trapped moisture that causes dry rot.

1
Sprayed & Cured
Dries into an invisible, breathable film of microscopic polymer nodes, each one encapsulating active antimicrobial agents.

2
Moisture Trigger
When water or steam touches the surface, the polymer matrix shifts — actively migrating anitmicrobial agents up to where they're needed.

3
Dry Retraction
As the surface dries, the polymer contracts, sealing the antimicrobial reserve for the next wet-and-dry cycles.
Common Questions
Everything You Need to Know Before You Spray.
Wood, masonry, concrete, drywall (bare or painted), tile grout, natural stone, fabrics, carpets, vinyl, and HVAC duct liners.
Superstratum Endurance Coating forms an invisible, water-resistant film that resists mold growth. This is achieved through a unique synergy between EPA-registered preservatives and a durable polymer matrix. Together, these components provide long-lasting mold and water resistance within the dry film.
Yes. Once dry (curing takes approximately 1–2 hours), the coating is chemically inert, non-toxic, and produces zero off-gassing or inhalable particulates. CTEH third-party toxicological review confirmed safety for indoor environments.
It dries 100% clear and matte. It does not alter color or sheen. It can be applied over existing paint or serve as a protective primer beneath decorative topcoats.
It dries 100% clear and matte. It does not alter color or sheen. It can be applied over existing paint or serve as a protective primer beneath decorative topcoats.
Both share the same safe, high-performance base polymer formulation. The Pro version is calibrated for high-pressure sprayers, large remediation jobs (attics, crawlspaces, new construction).
Because it is water-based and zero-VOC, no hazardous ventilation is needed. We simply recommend a standard N95 mask when spraying overhead or in enclosed spaces to avoid inhaling fine mist droplets.
Ready to Stop the Cycle?
A barrier that activates with moisture and keeps working for years — not just until the next clean.
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