“Excellent waterproofing performance.”
Applied easily and cured fast. We backfilled the same day with zero issues. Great adhesion and seamless coverage on concrete foundations.

Mark L., Contractor

10/05/25 

Users Love It | 4.8/5 Rating

Tremco® Tremrpoof 250GC

Single-Component, Fluid-Applied Elastomeric Waterproofing Membrane 

Why choose TREMproof® 250GC for below-grade and horizontal waterproofing?

Because it cures fast, applies easily, and creates a durable, seamless barrier against moisture and hydrostatic pressure.

Seamless, monolithic waterproofing

Fast cure for quicker backfilling

Excellent adhesion to concrete substrates

Performs in damp and submerged conditions

Spray, roller, or squeegee application

$159.53

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Only 110 left

“Excellent waterproofing performance.”
Applied easily and cured fast. We backfilled the same day with zero issues. Great adhesion and seamless coverage on concrete foundations.

Mark L., Contractor

10/05/25 

description

TREMproof® 250GC is a high-performance, single-component, fluid-applied elastomeric waterproofing membrane engineered for demanding below-grade and horizontal applications. It forms a seamless, flexible barrier that resists water intrusion, hydrostatic pressure, and moisture migration. The fast-curing formulation allows earlier protection, drainage installation, and backfilling, helping reduce construction time without sacrificing long-term durability.

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authenticity guarantee

We guarantee that every TREMproof® 250GC product is 100% genuine and sourced directly from authorized Tremco channels. Each unit meets strict manufacturer quality standards to ensure consistent performance, reliability, and long-term protection on every project.

 

100% genuine TREMproof® 250GC products

  • Sourced exclusively from authorized Tremco channels
  • Manufactured to strict quality and performance standards
  • Ensures consistent reliability and long-term protection on every project

faster cure for quicker project completion

Delivers fast-curing, seamless waterproofing with flexible protection for demanding below-grade construction environments.

Faster Project

Can be applied as soon as 24 hours after concrete form removal and accelerated with water for quicker curing.

Maximum Protection

Apply up to 120 mils in a single lift, or build up to 215 mils with multiple lifts—without compromising performance.

Application Versatility

Available in multiple viscosities for self-leveling, roller, or trowel application across varied project conditions.

System Compatible

Designed to integrate seamlessly with Tremco sealants, coatings, and expansion joints for reliable detailing and penetrations.

ideal applications for tremproof® 250gc

Designed for demanding waterproofing applications, TREMproof® 250GC delivers reliable, long-term protection across a wide range of substrates and site conditions. Its seamless, fluid-applied membrane adapts to structural movement, resists moisture intrusion, and performs consistently in damp, green, and submerged environments.

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Backfilled walls

Split slabs

Under paver systems

Vegetated roofs

Planters

Submerged conditions

PARTNER SUPPLY ADVANTAGES

Our Partner Supply program is built to support contractors, distributors, and project teams with reliable materials, consistent availability, and expert-backed solutions—so every project runs smoother from start to finish.

Reliable Availability

Consistent stock when you need it.

Dedicated Support

Expert guidance & product assistance.

Reliable Availability

Consistent stock when you need it.

Scalable Supply

Supports small to large projects.

Dedicated Support

Expert guidance & product assistance.

Competitive Pricing

Partner-focused, volume-based rates.

Reliable Availability

Consistent stock when you need it.

Dedicated Support

Expert guidance & product assistance.

Scalable Supply

Supports small to large projects.

Competitive Pricing

Partner-focused, volume-based rates.

Scalable Supply

Supports small to large projects.

Competitive Pricing

Partner-focused, volume-based rates.

performance you can trust

Engineered for durability, flexibility, and moisture resistance, delivering consistent waterproofing performance in demanding conditions.

600% Elongation

Maintains flexibility and membrane integrity even during structural movement and substrate shifting.

0.3% Perms

Extremely low vapor permeability ensures superior resistance against moisture penetration.

100% Rapid Cure Efficiency

Ready for protection boards and backfilling within 4–6 hours.

how to use

Prepare surface, apply membrane evenly, allow rapid curing, then protect system before drainage installation or backfilling.

Surface Preparation

Ensure concrete is clean, sound, and free of contaminants.

Apply the Membrane

Spray, roll, or squeegee Tremprime 500 evenly over the surface.

Allow to Cure

Membrane cures quickly to form a flexible, waterproof barrier.

Protect & Build

Install protection boards, drainage, or backfill once cured.

Surface Preparation

Ensure concrete is clean, sound, and free of contaminants.

Apply the Membrane

Spray, roll, or squeegee TREMproof® 250GC evenly over the surface.

Allow to Cure

Membrane cures quickly to form a flexible, waterproof barrier.

Protect & Build

Install protection boards, drainage, or backfill once cured.

why choose tremproof® 250gc?

Choose TREMproof® 250GC for seamless waterproofing, faster installation, superior flexibility, and trusted Tremco-backed performance.

Seamless, monolithic waterproofing

Faster project completion

Superior flexibility and adhesion

Backed by Tremco expertise and warranty

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compare performance. choose confidence.

See how TREMproof® 250GC outperforms traditional systems with faster curing, flexible application, and damp-concrete compatibility.

TREMproof® 250GC

TREMproof® 6100

application temperature

above 40 °f (5 °c) and rising

above 40 °f (5 °c) and rising

application

roller, trowel, self-leveling

squeegee

thickness

60 mils | 90 mils | 120 mils

minimum 215 mil (wet), 215 mil (dry)

type/composition

modified polyurethane waterproofing

hot-applied rubberized asphalt

typical cure time

6 to 12 hr at 75 °f (24 °c), 50% rh 

16 to 24 hr at 75 °f (24 °c), 50% rh

use on damp/green concrete

yes

no

trusted by industry professionals

“Fast cure times and easy application on damp concrete helped us stay on schedule without compromising performance.”

Ruhit hau

— Commercial Contractor

“TREMproof® 250GC simplified our waterproofing process and delivered consistent results across challenging site conditions.”

Rabit sha

— Project Manager

frequently asked questions

America’s Trusted Waterproofing Solution

Engineered for fast-track construction, TREMproof® 250GC delivers reliable protection on damp and green concrete.

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Is TREMproof® 250GC suitable for submerged conditions?

Yes, it performs exceptionally well in submerged and damp environments.

Can it be applied to green concrete?

Yes, it can be applied to green concrete once formwork is removed.

What application methods are supported?

 Spray, roller, squeegee, or trowel.

How soon can backfilling occur?

Typically within 4–6 hours, depending on conditions.

What surface preparation is required before application?

Surfaces should be clean, sound, and free of dirt, dust, oils, or loose materials before applying TREMproof® 250GC.

Does TREMproof® 250GC require a primer?

In most cases, no primer is required, but substrate conditions may vary—refer to technical guidelines for specific recommendations.

waterproofing insights & innovations

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Tremco® Tremrpoof 250GC

$159.53