Passive Purple: Tested & Certified
Passive Purple is one of the most thoroughly tested liquid airtight coatings on the market. It is verified to both North American (ASTM / ICC-ES) and European (EN) standards, and holds Passivhaus certification, BBA approval and a published Environmental Product Declaration — so it can be specified with confidence on projects anywhere in the world. Every result below comes from an independent, accredited laboratory.
Performance at a glance
| Performance | Result | Tested to |
|---|---|---|
| Airtightness (air barrier material) | 0.02 L/s·m² at 75 Pa | ASTM E2178 · ICC-ES ESR-4715 |
| Reaction to fire | Class A to ASTM (Flame Spread 0; Smoke 55, Brush 0/35) · Euroclass C to EN | ASTM E84 · EN 13501-1 |
| Solar reflectance | SRI 52 — reflects ~45% of solar energy | ASTM E1980 |
| Radon barrier | Independently certified | Radon permeability certificate |
| Methane / ground-gas barrier | Low methane permeability, verified | ISO 15105 |
| Mould resistance | 10/10 — no defacement | ASTM D3273 & ASTM G21 |
| Adhesion (pull-off) | CLT 1.83 N/mm², OSB 0.51 N/mm²; also tested on gypsum, red clay brick, steel & plaster | EN ISO 4624 |
| Tensile strength & elongation | Flexible, crack-bridging — tested before & after ageing | EN 12311-1 |
| Heat release | Cone calorimeter tested | ASTM E1354 |
| Environmental impact | Published EPD (EPD-IntelligentMembranes-249-EN) | EN 15804 / ISO 14025 |
Note: ASTM and EN grade reaction to fire on different scales — Passive Purple is Class A to ASTM E84 and Euroclass C to EN 13501-1. (The Passive Purple External grade carries a separate EN Fire Class B rating.)
Code compliance & certification
- ICC-ES ESR-4715 — evaluated against the 2021/2018/2015 IBC, IRC and IECC (with a City of Los Angeles supplement).
- Passivhaus certified — verified by the Passivhaus Institute for certified low-energy and Passivhaus buildings.
- BBA approved — independent UK Agrément certification for building-control confidence.
- Environmental Product Declaration — third-party verified life-cycle data to EN 15804.
Tested both sides of the Atlantic — suitable worldwide
Because Passive Purple is verified to both ASTM (North America) and EN (Europe) standards — alongside Passivhaus, BBA and a published EPD — specifiers can rely on one product and one evidence base wherever they build.
Independent testing by accredited laboratories including ICC-NTA, LLC; R&D Services, Inc.; the Belgian Building Research Institute (BBRI); the University of Liège Building Materials Laboratory; Mecadi GmbH; MicroStar Lab; and Kiwa-Ecobility Experts.
Independently tested. Third-party certified. No marketing claims without the data to back them up.