LABFENDER Aliphatic Polyurethane | Heavy Duty Floor Protection Topcoat Product Overview LABFENDER is a high solids, low VOC aliphatic polyurethane topcoat engineered for maximum durability in demanding environments. Designed to be applied over epoxy and polyaspartic systems, it provides exceptional abrasion resistance, superior chemical protection, and long term UV stability. This is the topcoat used when standard systems are not enough and long term performance under heavy traffic is required. LABFENDER significantly reduces wear from foot traffic, forklifts, and rolling equipment while protecting against staining, chemical exposure, and plasticizer transfer. Key Advantages Extreme Abrasion Resistance: Designed for heavy traffic and industrial use Superior Chemical Protection: Up to 60 times more resistant to plasticizer transfer (common cause of staining and softening in coatings) UV Stable: Non yellowing and protects underlying coatings High Solids Formulation: Strong, dense protective layer Low VOC: Suitable for regulated environments Long Working Time: Allows efficient installation over large areas Improved Cleanability: Resists dirt penetration and surface staining Where This Product Is Used Warehouses and manufacturing facilities Forklift and heavy equipment traffic areas Automotive shops and service centers Commercial kitchens and food processing plants Hospitals, labs, and clean environments Flake, quartz, and metallic flooring systems Surface Preparation Requirements LABFENDER is not designed for direct application to concrete. Apply only over epoxy or polyaspartic systems No prep required if within recoat window If outside recoat window, sand to a uniform dull finish Vacuum thoroughly and wipe clean before application Critical Mixing Instructions Mixing errors are one of the most common causes of failure with this product. Follow these instructions carefully. 3 Part Mix (Recommended) Ratio: 4 Parts A to 1 Part B plus 3 lbs Aluminum Oxide (Part C) Pre-mix Part A for 1 minute Add Part B and mix for 3 minutes at low speed (300–450 RPM) Reverse mixer direction for final 90 seconds Scrape sides and bottom of container thoroughly Add Aluminum Oxide slowly and mix an additional 2–3 minutes Recommended dosage: 3 lbs aluminum oxide per 1 gallon kit 2 Part Mix (Smooth Systems) Ratio: 4 Parts A to 1 Part B Follow same mixing procedure without adding aluminum oxide Use this method for smooth floor finishes Do not add solvents. Ensure mixing container is clean. Application Guidelines Apply between 50°F and 86°F with humidity below 80% Turn off ventilation and airflow during application Block wind when applying outdoors Apply using a roller or approved method with consistent coverage to maintain a uniform finish Why Installers Choose LABFENDER When floors are exposed to constant traffic, heavy loads, or chemical exposure, standard topcoats can wear down quickly. LABFENDER provides a higher level of protection that helps maintain the appearance and performance of the entire system over time. This is the solution for long term durability in high demand environments. Frequently Asked Questions Can I apply this directly to concrete?No. This product is designed as a protective topcoat over epoxy or polyaspartic systems. Do I need to add aluminum oxide?It is recommended for flake and quartz systems to improve durability and slip resistance. What happens if I mix it incorrectly?Improper mixing can lead to soft spots, poor curing, or complete coating failure. Follow mixing instructions exactly. Is this suitable for heavy traffic areas?Yes. It is specifically designed for high traffic, industrial, and forklift environments. Does this product yellow?No. It is UV stable and will not yellow over time.