The Crommelin PondSealer is a heavy‑duty, seamless waterproofing membrane designed to protect and seal new or renovated fish ponds and ornamental water features. Made from a robust synthetic rubber compound, this tough elastomeric sealer remains watertight under permanently wet conditions while staying flexible to accommodate structural movement. Its non‑toxic formulation is safe for fish, plants and potable water use, making it ideal for aquatic environments in gardens, landscapes and outdoor projects.

Key Features

• Heavy‑duty, elastomeric membrane that stays watertight in continuous wet conditions.

• Permanently flexible to accommodate structural movement without cracking.

• Non‑toxic and fish‑safe, suitable for ponds with aquatic plants and animals.

• Safe for potable water applications such as water storage areas.

• Easy to apply and quick drying for efficient installation.

• Excellent adhesion and crack‑bridging properties for durable waterproofing.

• Simple to repair if maintenance is required.

Areas of Use

• Sealing and waterproofing fish ponds and ornamental water features in garden and landscape settings.

The Crommelin PondSealer combines durability, flexibility and safety in a versatile membrane that protects aquatic structures and ensures reliable long‑term performance, helping prevent leaks and water loss while maintaining a healthy environment for aquatic life.

Important: Application Instructions and Installation Guide