Pettit 9080 Satin Additive is designed to reduce the gloss of Pettit Easpoxy topside polyurethane paint ONLY. Pettit advises against using the 9080 Satin Additive in Captain's 1015 clear varnish because it will make the varnish cloudy. For a beautiful satin finish, use Pettit Captain's V-975 Satin Varnish.