Tips and techniques may vary by product. See product data sheet on website, paintdocs.com or via QR code scan located on packaging.
Caulk removal – wear protective goggles and gloves
1. Remove all existing caulk – use a caulk remover (Goo-Gone) to soften the caulk followed by a caulk scraper to remove the caulk.
2. Clean the surfaces thoroughly to remove: loose particles, grease, dirt, oil, wax, loose paint, dust, and soap film.
3. Remove any mold/mildew with a 4:1 mix of water to bleach, followed by a detergent that does not contain ammonia. Rinse surfaces and dry thoroughly.
Caulk application – all surfaces must be structurally sound (repair any damaged surface area)
1. Use low-tack painter’s tape to mask both sides of the intended caulk area for a clean professional finish.
2. Scan QR code on White Lightning package for product data sheet application details.
3. IF, joints are over 1/2” deep; purchase and install closed-cell foam backer rod (just before caulk application). This prevents three-sided adhesion (leading to caulk failure). Backer rod should be 25% wider than the joint width so it remains in place during caulk application. Top of backer rod should be no more than 1/2” from surface of substrate.