High-Solids, Two-Component, Water-Based Aliphatic Polyurethane APF Polyurethane 501 is a high-solids, two-component, water-based aliphatic polyurethane that delivers performance properties equal to conventional solvent-based catalyzed urethanes, without the associated health and environmental problems. It is VOC compliant in California and offers significant improvements over first-generation catalyzed water-based polyurethanes, including higher film build capabilities, enhanced chemical resistance, and resistance to hot tire staining. Advantages: Resistant to fuels and many chemicals Hard, high-gloss, and easily cleaned surface Graffiti-resistant when used as a wall surface Mixing Instructions: Mix only the amount of material that can be used within a 3-hour period at 77°F (25°C). Higher temperatures reduce the working time, so mix smaller batches in hot weather. Premix Part A before adding Part B. The correct mixing ratio is 2 parts Part A to 1 part Part B. Slowly add Part B to Part A while mechanically agitating with a slow-speed drill for 2 full minutes until completely homogenized. Material cannot be properly mixed by hand—use a small “squirrel cage” mixer for small batches. Application Instructions: Apply at 200-350 sq. ft. per gallon using a brush, roller, or airless sprayer. Avoid puddling or accumulation in joint areas. Applications exceeding 200 sq. ft. per gallon may cause bubbles in the cured coating. If applying multiple coats, and the material has cured for more than 24 hours, de-gloss with a black ScotchBrite® janitorial abrasive pad or fine sanding screen. Shelf Life: One year from the date of manufacture in the original unopened container. Store away from heat sources between 50ºF and 85ºF (10ºC – 30ºC). Do not allow the product to freeze.
