DuraLiner™ Water Seal – 10oz tube

Professional Water-Tight Sealing for Pond Liners

Create lasting, flexible, water-tight seals in your pond liner installations with DuraLiner™ Water Seal. This professional-grade sealant is specifically formulated to bond EPDM rubber liners to substrates, seal penetrations, and create secure connections between liner and hard surfaces like skimmers, drains, and waterfall boxes.

Designed for the unique demands of pond construction, DuraLiner™ Water Seal remains flexible after curing, moving with the liner through temperature changes and ground settling without cracking or losing adhesion.

Flexible, Water-Tight Performance

Unlike rigid sealants that crack when liners shift, DuraLiner™ Water Seal maintains a flexible bond that accommodates the natural movement of EPDM rubber liners. This flexibility ensures the seal remains water-tight through freeze-thaw cycles, ground settling, and temperature changes.

The formula creates a strong bond between liner and substrate—whether concrete, wood, metal, or other materials. Once cured, the seal withstands continuous water exposure without degrading.

Key Features

• Creates flexible, water-tight seals for EPDM rubber liners
• Bonds liner to concrete, wood, metal, and other substrates
• Compatible with any EPDM rubber liner
• Remains flexible through temperature changes and ground settling
• 10 oz tube provides approximately 10 linear feet @ 3/8" bead
• Ideal for skimmers, drains, waterfall boxes, and penetrations
• Withstands continuous water exposure

Application Tip: Ensure surfaces are clean and dry before application. Apply a continuous 3/8" bead to the substrate, press the liner firmly into the sealant, and secure with mechanical fasteners if required. Allow adequate curing time (typically 24-48 hours) before filling the pond with water.

Frequently Asked Questions

What is DuraLiner™ Water Seal used for?

It creates water-tight seals between EPDM rubber liners and substrates such as skimmer faceplates, bottom drains, waterfall boxes, concrete walls, and pipe penetrations.

Will this work with my EPDM liner?

Yes, DuraLiner™ Water Seal is compatible with any EPDM rubber liner.

How much coverage does one tube provide?

A 10 oz tube provides approximately 10 linear feet of coverage when applied as a 3/8" bead, sufficient for most skimmer installations or multiple penetration seals.

Why is flexibility important in a liner sealant?

Flexibility allows the seal to move with the liner through temperature changes and ground settling without cracking or losing adhesion, ensuring long-term water-tight performance.

Can I use this to repair liner leaks?

This sealant is designed for bonding liner to substrates, not for liner-to-liner repairs. For liner tears or punctures, use a dedicated EPDM liner patch kit.

What surfaces can I bond liner to?

DuraLiner™ Water Seal bonds EPDM liner to concrete, wood, metal, PVC, and other materials commonly used in pond construction.

How long does it take to cure?

Curing time varies based on temperature and humidity. Generally, allow 24-48 hours for full cure before filling the pond with water.

Do I need to use mechanical fasteners?

For some applications like skimmer faceplates, mechanical fasteners are recommended in addition to the sealant. The sealant creates the water-tight seal while fasteners provide mechanical strength.

Is this safe for fish once cured?

Yes, once fully cured, the sealant is inert and safe for fish and aquatic life.