Historically, the composition of cold-processed corrosion protection tapes meant that they were of limited use at extremely high temperatures. With its new BUTYLEN-AS40 HT product, DEKOTEC GmbH aims to set a new global standard.
Used in combination with a new primer, the cold-processed, butyl rubber-based corrosion protection tape achieves excellent performances—even at high operating temperatures of up to 100 °C.
The product guarantees reliable protection against corrosive media and mechanical loads after just one wrapping process, all while satisfying the requirements of the ISO 21809-3, Type 12A-3 standard. Meanwhile, a second wrap meets the Class C80 requirements of EN 12068 and DIN 30672. The product is easy to apply, thanks to its highly tear-resistant and adaptable carrier film.
“It was an incredible challenge to create a product that resists to high temperatures and is easy to apply using a standard process—despite the physical and chemical limitations of the raw materials,” says Thomas Kaiser, managing director. “Essential for the development was the fulfilment of requirements of all relevant standards. Our development engineers did a fantastic job.”
BUTYLEN-AS40 HT is applied by hand or using a DEKOMAT wrapping device, which means that it is also suitable for large-scale use for rehabilitations or complete coatings on oil, gas, and water pipelines. The product can operate at exceptionally high operating temperatures, such as those in power stations, refineries, and pipeline stations. BUTYLEN-AS40 HT is also ideal for applications at high ambient temperatures, in areas such as Central Asia, the Middle East, and Central America.
“As well as extremely high temperature stability, BUTYLEN-AS40 HT also boasts excellent lap shear strength,” Kaiser says. “This is an excellent extension of our portfolio for our customers working in high-temperature applications.”
As a genuine, co-extruded three-ply tape, BUTYLEN-AS40 HT creates a strong bond between the adhesive and carrier film. After application, the tape fuses in the overlapping area to form a diffusion-resistant protective hose. The formula ensures that the fused seam can withstand extremely high operating temperatures over long periods of time, according to the company.
Source: DEKOTEC GmbH, www.dekotec.com.