- Water-Based, Acrylic – Aliphatic Polyurethane Clears - Architectural – grade clear for interior & exterior use - UVLS – Ultra-Violet Light Stabilizer. Protects underlying colors. - 4050 UVLS Gloss Clear is also the carrier-medium for candy2o and an adhesive primer. Thin with 4011 Reducer 10% per vol. Product & Technical Information: