Sealants & Adhesives

Pond sealants, adhesives and waterfall foam

Ponds and water features need sealants that cure safely around fish and stay flexible in wet conditions. Standard household silicones often contain mould inhibitors that are toxic to fish.

What's in this collection

• Fish-safe sealants: for sealing joins, fittings and liner penetrations.
• Adhesives: for bonding rock, liner and fittings.
• Waterfall foam: expanding foam that fills gaps between rocks so water flows over the waterfall instead of disappearing behind it. PondMAX waterfall foam is designed for this use.

Application tips

• Clean and dry surfaces where possible for the best bond.
• Check the label for underwater application and cure times before refilling.
• Wear gloves, and press grit or soil into fresh foam to hide it.

Related products

Repairing a hole in your liner? See pond liner repair kits. Building a waterfall? Pair foam with a spillway box.