Polychem 7508-M-80 Urethane alkyd resin OPC Polymers Alkyd Resins Architectural / Decorative mineral spirits, low aromatic POLYCHEM 7508 is a high solids urethane alkyd which can be formulated into general purpose urethane varnishes and enamels. It can also be used as an additive to improve the dry time of high solids medium and long oil alkyds. This product is low-HAP and can be formulated into HAP-free coatings (below 1% HAP). Varnishes & Flooring/ Quick dry enamels Gloss & Satin Low HAP, high solids urethane alkyd. Used in general purpose urethane varnishes and enamels and HAP-free coatings. Can also be used as an additive to improve dry time of high solids medium and long oil alkyds. (below 1% HAP). <br> Applications: varnishes and flooring, quick dry enamels gloss and satin