Ultimate Linings Product UL TK 22 (High Abrasion Resistance) is a fast-set, 100% solids, flexible, two-component spray elastomer made to deliver high performance against abrasion tear and impact, the company says.
The product is intended for use as a protective lining and coating on the interior of concrete, masonry and metal structures in dredging and petroleum refineries, cargo containers, mining operations, landfill containment, marine environments, secondary containment water and wastewater treatment, and industrial and manufacturing facilities.
Application and Features
UL TK 22 (HAR) may be applied in single or multiple applications without appreciable sagging and is relatively insensitive to moisture and temperature, allowing application in most temperatures, the manufacturer says. Fast gel time makes the product suitable for applications to -20F degrees.
According to the company, the product offers:
• Abrasion resistance;
• Hydrolytic stability;
• High tear and impact resistance;
• Impact dampening;
• Thermal stability;
• Zero VOC (100% solids) formulation;
• Low temperature flexibility;
• Two standard colors (clear and neutral), with custom colors available on request;
• Chemical resistance;
• Coating of carbon or mild steel metals without primer.
Most failures in the performance of surface coatings can be attributed to poor surface preparation. Polyurea coatings rely on the structural strength of the substrate to which they are applied. All surfaces must be free of dust, dirt, oil, grease, rust, corrosion and other contaminants. When coating substrates previously used, it is important to consider the possibility of substrate absorption, which may affect the adhesion of the coating system, regardless of the surface preparation. Ultimate Linings recognizes the potential for unique substrates from one project to another.
For steel substrates, remove all oil, grease and weld spatters, and round off any sharp edges from the surface. Aluminum substrates should be blasted with aluminum oxide or sand, not with steel or metal grit. Excessive blasting may result in a warped or deformed surface. After blasting, wash aluminum with a commercially available aluminum cleaner. Allow to dry, then prime.
Brass and copper should be blasted with sand, not with steel or metal grit. Remove all dust and grease before applying primer. Galvanized surfaces should be cleaned and degreased before priming. They should not be blasted with an abrasive grit. An adhesion test is recommended before starting the project.
Stainless steel may be grit blasted and degreased before priming. Some stainless-steel alloys are so inert that satisfactory bonding is not possible. An adhesion test is recommended before starting the project.
Cast iron, whether old or new, should be blasted with steel grit and degreased before priming. Old cast iron is difficult to prepare for a satisfactory bond. The substrate can absorb oil- and water-soluble contaminants that will keep returning to the surface after the coating system has been applied and affect the system’s adhesion. An adhesion test is recommended before starting the project.
Houston-based Ultimate Linings (ultimatelinings.com) has been a provider of bed liners and polyurethane, polyurea and hybrid industrial coating solutions for nearly 20 years.