GREAT STUFF Pond and Stone is the easy way to create beautiful aquascapes and hardscapes. By expanding to fill gaps and cracks, our foam filler helps direct the flow of water in waterfall, pond and streambed construction to the exterior of the water feature, instead of between or behind rocks.
- POND & STONE GAP FILLER. This black colored closed-cell polyurethane foam sealant bonds to porous and nonporous rocks or stones without the use of mortar. Expanding up to 1", create a long-lasting, airtight and water-resistant seal for outdoor projects.
- STRAW-APPLIED. Save time on your projects with this simple to use spray foam — the straw applicator makes any project a breeze and helps you deliver the right amount of insulating foam even in hard to reach spaces.
- SPRAY ANYWHERE. Specifically designed to blend in and withstand moist conditions, use on retaining walls, water features, landscaping and more. Bonds without mortar and can be applied to damp and dry surfaces. Lasts for years in wet conditions.
- NATURAL LANDSCAPING. Designed to blend with stones and shadows, this black-colored, waterproof expanding foam helps direct water over, not under, rocks. Create a water-shedding bond safe for ornamental fish and plants.
- SAME–DAY RESULTS. Get your projects done right the first time with expanding foam from GREAT STUFF. Cures in 8 hours. Mist with water to speed cure. Trim, sand, stain and paint for a truly GREAT finish to your DIY projects.
- POND & STONE GAP FILLER. This black colored closed-cell polyurethane foam sealant bonds to porous and nonporous rocks or stones without the use of mortar. Expanding up to 1", create a long-lasting, airtight and water-resistant seal for outdoor projects.
- STRAW-APPLIED. Save time on your projects with this simple to use spray foam — the straw applicator makes any project a breeze and helps you deliver the right amount of insulating foam even in hard to reach spaces.
- SPRAY ANYWHERE. Specifically designed to blend in and withstand moist conditions, use on retaining walls, water features, landscaping and more. Bonds without mortar and can be applied to damp and dry surfaces. Lasts for years in wet conditions.
- NATURAL LANDSCAPING. Designed to blend with stones and shadows, this black-colored, waterproof expanding foam helps direct water over, not under, rocks. Create a water-shedding bond safe for ornamental fish and plants.
- SAME–DAY RESULTS. Get your projects done right the first time with expanding foam from GREAT STUFF. Cures in 8 hours. Mist with water to speed cure. Trim, sand, stain and paint for a truly GREAT finish to your DIY projects.
