G25 Multi-Purpose Seam Tape

G25 Multi-Purpose Seam & Repair Tape – High-Performance Liner Protection

G25 is a 25 mil, UV-resistant repair and seam tape engineered for demanding geomembrane and construction film applications where abrasion resistance, puncture protection, and leak control are critical.

Manufactured with a durable multipolymer alloy film (MAF®) backing and a high-performance synthetic elastomeric adhesive, G25 provides strong adhesion and long-term field durability in exposed environments.

Engineered Multipolymer Alloy (MAF®) Construction

Unlike standard repair tapes, G25 utilizes a tough multipolymer alloy film designed to enhance:

• Tear resistance

• Puncture resistance

• Abrasion resistance

• Dimensional stability

• UV durability for outdoor exposure

The aggressive elastomeric adhesive delivers strong bonding performance while remaining flexible under temperature fluctuations.

A heavy-duty polymer release liner protects the adhesive during storage and handling, preventing contamination prior to installation.

Ideal for Field Repairs & Seam Reinforcement

G25 is commonly used for:

• Geomembrane puncture repairs

• Patch installation on PE and compatible liners

• Seam reinforcement

• Edge detailing

• Emergency leak control

• Temporary containment repairs

Its UV resistance makes it particularly effective for exposed liner systems such as ponds, reservoirs, agricultural containment, and temporary industrial applications.

Performance Advantages

• 25 mil total thickness for enhanced durability

• UV resistant formulation

• High abrasion resistance for high-traffic areas

• Flexible adhesive system for surface conformity

• Easy peel release liner for clean installation

• Designed for outdoor and exposed environments

The combination of alloy backing and elastomeric adhesive allows G25 to maintain bond integrity while accommodating minor movement and environmental stress.

Recommended Installation Procedure

For best results:

1. Clean and dry the repair area thoroughly.

2. Remove dust, moisture, oils, and debris.

3. Cut patch material with rounded corners to reduce stress points.

4. Remove release liner carefully to avoid contaminating adhesive.

5. Apply firm pressure using a hand roller to ensure full surface contact.

6. Apply additional pressure at edges to promote proper seal.

Surface preparation directly affects adhesion performance.

Typical Applications

• Pond liners

• Secondary containment systems

• Tank liners

• Agricultural lagoon repairs

• Construction film repairs

• Temporary enclosure reinforcement

• Vapor barrier patching

G25 is especially valuable for maintenance teams and contractors requiring a reliable field repair solution without welding equipment.

When to Use G25 vs. Butyl or Fabrication Tape

G25 is recommended when:

• UV exposure is expected

• Abrasion resistance is required

• Repairing punctures or tears

• Reinforcing exposed seams

Butyl or fabrication tapes are typically used for overlap bonding and liner-to-concrete transitions, while G25 excels in exposed repair and patch applications.

Available Sizes

• 2” x 100’ (Case of 12)

• 4” x 100’ (Case of 6)

• 6” x 100’ (Case of 4)

Refer to the Product Data Sheet for detailed physical and performance specifications.