Stops Leaks and Drips Fast. Our easy-to-use sealant spray stops leaks and drips with ease. It's an easy-to-use formula that's perfect for emergencies when you need to stop leaks quickly. Whether you have a leak in your guttering, pipework, drain, or much more, this Pro-Kleen leak sealer provides a trustworthy and easy solution to seal the leak quickly and efficiently. The watertight formula dries completely waterproof. It's super tough and robust, making it perfect for indoor and outdoor use. Whether you're needing to fix a leaking roof or window, this is the product for you. This versatile formula is suitable for use on guttering, pipework, drains, windows, roofs, and other leaking areas. Use our pipe sealant spray for a quick and easy fix for those pesky leaks and drips on a variety of indoor and outdoor surfaces. There's no need to worry about Pro-Kleen's sealant spray leaving behind an unappealing mark as it dries completely transparent. This means you can use it with complete peace of mind. Once dry, this sealant spray remains flexible and pliable for years to come! The formula is super long-lasting to prevent drips and leaks from returning after use. For best results, we recommend applying to clean, dry surfaces that are free from dust, dirt, and rust. 1. Spray in thin coats until you have the desired thickness. 2. We recommend plugging larger holes and voids with Aluminium foil before spraying to obtain a better seal. 3. Masking tape can be used to prevent the product from going onto other areas. If in doubt, spray the product in an inconspicuous area first. Use the product in well-ventilated areas only. After use, invert the can and spray to clear the nozzle to prevent blockages.