Stopaq

Cold‑applied visco‑elastic PIB wrap for the external corrosion protection of steel and ductile‑iron pipes, field joints and fittings, buried, submerged or above ground. It bonds without primer (wire brushing to St 2 is enough), self‑heals small dents and cracks, and does not interfere with cathodic protection. A mechanical overwrap, such as Stopaq Outerwrap, goes on top.

Operating temperature

−45 °C … +70 °C (thermal resistance +90 °C)

Standards

ISO 21809‑3 (type 13), EN 12068 (KIWA), NSF/ANSI 61

Application

Cold, by hand, no primer, no blasting

Polyisobutene‑based filler pumped hot into the annulus between a casing pipe and the carrier pipe, for example at road, rail and waterway crossings. As it cools it sets into a flexible mass that displaces water and oxygen, so corrosion cannot start. Compatible with cathodic protection.

Operating temperature

−20 °C … +35 °C

Standard

ISO 16440; salt‑spray ASTM B117 720 h

Application

Heated and pumped into the annulus

Polyethylene‑based mechanical protection tape with a butyl adhesive. Applied over the Stopaq wrap to protect it from impact and indentation. It resists acids and alkalis, installs cold and needs no curing time.

Operating temperature

−30 °C … +70 °C

Standard

ISO 21809‑3 (type 13A)

Thickness

0.5 mm