Abrasion-Resistant Polyurethane Overcoat
Chemline Inc. has introduced Chemline 2265 ARO, an abrasion-resistant overcoat that provides additional protection to its standard 2265 direct-to-metal polyurethane coating.
Using proprietary polymer technology, the product provides a nearly impenetrable membrane that serves as a sacrificial second layer designed to defend the primary pipeline coating from impact and rock damage during push/pull operations in horizontal directionally drilled (HDD) installations such as road and river crossings that require additional ARO to keep the anti-corrosion coating intact. Chemline 2265 ARO also maintains flexibility, allowing its use on bends, fittings and fabrication when severe handling or rough terrain persist.
Chemline 2265 ARO is formulated without abrasive fillers that can rapidly erode the spray gun module and clog the proportioning unit filters. ARO has a highly-compatible bond to Chemline 2265 and is applied immediately following that product to form an ultra-durable and resistant outer shell, usually at a final thickness of >60 mils.
Chemline 2265 ARO is formulated without plasticizers, tar, or other hydrocarbon extenders. It is also formulated to minimize the overspray fog in the application area and has noticeably less odor than conventional coatings as a result of its low tendency to fog and the absence of tar extenders and aromatic solvents.