1. Refer to product packaging for use-by date.
2. Temperature. Apply sealant at temperatures between -20 and 122°F (-29 and 50°C) for best results.
3. Prepare surface. Cut out and remove all old caulk for repair applications.
4. Clean, Two-Step. First, apply solvent to a lint-free cloth and vigorously wipe bonding surfaces to remove dirt and residues. Next, use a dry wipe to remove remaining solvent and residue for optimum cleaning. Repeat if necessary. Surfaces must be clean, dry, oil- and frost-free for best results. (Recommended solvents include isopropyl alcohol, toluene, xylene, naphtha or similar solvent.) Always wear gloves and follow safety precautions and directions on solvent container. DO NOT USE gasoline or kerosene.
5. Install. Install back-up spacing material for better filling, especially if the width exceeds 1/2" to maximize bonding results. Open-cell polyethylene foam backer rod can be used.
6. Mask. Apply masking tape to areas adjacent to the joint to ensure straight bead lines and easy clean-up. Remove masking tape immediately after the bead is completed and before a skin is formed.
7. Open cartridge. Cut snub nose above threads, reattach and cut nozzle to desired size. Insert into a caulking gun.
8. Apply. Extrude sealant with a smooth, steady motion, and ensure complete fill of joint cavity before proceeding.
9. Tool. Tool the sealant immediately after application and before a skin forms. Remove masking immediately after tooling.
10. Replace cartridge cap. See “Shelf Life and Storage” instructions.

Clean-up Instructions

1. Clean-up should start immediately after sealant has been applied/ tooled and masking tape has been removed.
2. While wearing solvent-resistant gloves, wipe off excess sealant from surfaces and tools with a solvent- moistened cloth within 10 minutes of application.
3. If excess sealant is completely cured, carefully cut or scrape away.
4. Avoid contact of uncured sealant with skin and clothing. If contact does occur, wipe with clean rags and wash with water.

DOWSIL ™ GP™ Sealant is neither tested nor represented as suitable for medical or pharmaceutical uses. This product is -
•Not for structural glazing applications
•Not paintable 
•Not suited for prolonged submersion in water or below-grade applications 
•May not adhere to oily woods 
•May not be compatible with substrates made of methyl methacrylate, polycarbonate, polypropylene, polyethylene and polytetrafluoroethylene 
•Not suitable for surfaces that might bleed oils, plasticizers or solvents
•Not suitable for porous surfaces such as cement-like materials, stone or surfaces prone to attack by weak acids 
•May not cure properly if used in spaces confined from atmospheric moisture 
•May cause corrosion on some brass, copper, zinc or zinc alloy-containing fixtures (galvanized) 
•Not for use where there is abrasion or physical damages