Jasco Liquid Mask & Peel is an aerosol tape and primer that's faster and easier than using painter's tape. Use to paint window frames like a pro without using masking tape. Save time and make a hard job easy! Spray on glass and trim, paint trim, then razor and peel. For Pro's and DIY'ers, Jasco is the premium brand of solvents, thinners and removers to deliver the highest quality for a variety of products. DIRECTIONS FOR USE: Clean glass and trim. Shake can well and hold 4" to 6" away from surface. Spray an even coat onto glass and edge of trim - it primes the trim too. Use a paint brush to even out any runs. Product turns from white to clear when dry. When dry, apply oil based or latex paint to trim. Paint can get on the glass where you used Mask & Peel. Allow paint to dry then score along the edge of trim with a new razor blade in cutter. Using a scraping tool with a new blade, lift the dried Mask & Peel off the glass. HELPFUL TIPS: Use when temperature is between 40º to 90º F. Avoid freezing. A hair dryer or fans can be used to speed up drying time. Peel within 2 weeks. CLEAN-UP: Use glass cleaner on any overspray.