Stopaq

A non-curing, self-healing polymer approach to long-term corrosion prevention

Polyisobutene (PIB) is employed in corrosion barrier systems where long-term adhesion, sealing integrity, and durability are required under variable environmental and operational conditions. The material’s linear visco-elastic behavior allows it to remain permanently flexible and active, rather than forming a brittle or stressed film.

Continuous wetting and adhesion without mechanical anchoring

PIB is fully amorphous and non-crosslinkable, meaning it does not cure, crystallize, or harden after application. This enables continuous wetting of the substrate surface and cohesive adhesion without reliance on mechanical anchoring or aggressive surface profiles. Once in place, PIB forms an impermeable barrier to water, oxygen, bacteria, and electrical currents—the fundamental drivers of corrosion.

Eliminating common long-term coating failure mechanisms

Once applied, PIB forms a continuous and impermeable barrier to water, oxygen, bacteria, and stray electrical currents. Because the material does not harden or shrink, internal stresses do not develop, eliminating common failure mechanisms such as cathodic disbondment and coating fracture. PIB systems perform across a wide operating range, from -49 °F to +248 °F, and require only minimal surface preparation, supporting application on in-service or condensing assets.