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GacoPoly

GacoPoly Elasto-Deck BT DG

Cold Applied 100% Polyurethane Waterproofing Membrane

Proven Performance In Demanding Applications

GacoPoly Elasto-Deck BT DG is a black, liquid-applied single-component moisture-cured polyurethane waterproofing coating, designed to form a seamless, flexible rubber membrane impervious to moisture. BT DG can be applied to green or damp concrete for both vertical and horizontal applications.

Why Choose GacoPoly Polyurethane Waterproofing Membrane Systems
Polyurethane coatings offer high resistance to water permeability and excellent adhesion to clean, dry plywood and concrete*. These characteristics are crucial for between-slab or below-grade structures where waterproofing membranes must function without maintenance for many years. GacoPoly Waterproofing membranes are also used on flat or low-sloped concrete or plywood roof decks as part of an Inverted Roof Membrane Assembly (IRMA). Once the product is applied and cured, the membrane is covered with extruded polystyrene board to provide thermal insulation and protect the membrane from damage. Additionally, GacoPoly Waterproofing Membranes provide exceptional waterproofing under soil and plants in a roof top garden. As an added bonus, GacoPoly LM60 NSF/ANSI 61 Certified, making roof water runoff safe for people, pets and wildlife.

For over 60 years, GacoPoly Polyurethane waterproofing systems have proven their reliability in challenging applications.

The same proven traffic coatings — just with a new name.
Now part of the Gaco family of brands, Elasto-Deck BT DG continues to provide the same proven performance contractors have counted on for decades — just with a new name. You can expect the same protection, durability, and ease of use, now backed by Gaco’s expanded portfolio and commitment to building envelope solutions.

Partner with Gaco for waterproofing solutions, such as BT DG, and you get far more than a bucket or pail of high-quality, high-performing material. You get a team of highly-skilled, technical experts who combine years of innovative technology with boots-on-the-ground experience to bring you the solutions you need. Find Elasto-Deck products near you or contact your local Gaco Area Manager with questions.

Benefits

  • QUICK AND EASY TO APPLY. Use Elasto-Deck BT DG to waterproof green or damp concrete, metal, or plywood in a single application.
  • CREATES A MONOLITHIC WATERPROOF MEMBRANE. Your structure will receive a seamless, impermeable elastomeric membrane, protecting it from water damage.
  • COLD APPLIED. Less skill is required, and there is a significantly lower chance of moisture evaporation.
  • BACKED BY GACO. Gaco offers a material and labor warranty for up to 20 years.

Applications

  • BETWEEN-SLAB OR BELOW-GRADE STRUCTURES. GacoPoly Polyurethane Membranes do not shrink or crack.
  • VEGETATIVE ROOFS/GARDEN ROOFS. Help keep your building cool and are environmentally friendly.
  • TANKS, PLANTERS, AND PODIUM DECKS. Use for both horizontal and vertical waterproofing applications.
  • IRMA ROOFING SYSTEMS. Ideal for waterproofing concrete or plywood roof decks.

Approvals/Certifications

  • Miami Dade

Details

  • Packaged in a 5-gallon pail
  • Available in Black
  • System warranties up to 20 years
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GacoPoly Standard Color Chart April 1st, 2026 Product: GacoPoly FastPass Additional Information
Elasto-Deck B.T. DG TDS March 31st, 2025 Product: GacoPoly Elasto-Deck BT DG Technical Data Sheets