PITTSBURGH PAINTS & STAINS^® ULTRA Advanced Exterior Clear Waterproofing Sealant

Area Preparation

Surface must be clean, dry, and free of all dust, dirt, mildew, oil, loose wood fibers and other contaminants. Previous coatings must be completely removed. Use an exterior wood cleaner to prepare new wood prior to coating, and to clean and restore weathered, dirty surfaces and remove mildew stains. After rinsing, allow wood to dry. Remove grade stamps or pencil marks by sanding. 

Application Details

DO NOT THIN. Stir thoroughly and often during use. Apply to a small area and allow to dry to ensure acceptable appearance and penetration. Intermix containers to ensure color uniformity. Apply one thin coat with a high quality brush, paint/stain pad or by spray equipment. When spraying, always backbrush for best results. To help avoid lap marks, apply to only a few boards at a time, and maintain a wet edge.

Apply when no precipitation is expected for 24 hours, and when air and surface temperatures are 50°F to 90°F (10°C to 32°C) and will remain above 50°F (10°C) for the next 24 hours. Avoid sealing in direct sunlight or on hot surfaces.

Drying Time

Normally dries in 24 hours when applied in temperatures of 50°F (10°C) to 85°F (29°C). High humidity may prolong drying time.

Cleanup

Clean brushes and tools with mineral spirits.