Preprufe® Pre-Applied Waterproofing Solutions

High-performance, fully adhered, pre-applied waterproofing system for critical below-grade applications.

Challenges of below-grade waterproofing

Preprufe® utilizes GCP's Advanced Bond Technology to create a continuous, integral and permanent adhesive bond to concrete. Leaks from groundwater, storm water runoff or irrigation water may impact the foundation of any building that's improperly waterproofed — and when concrete is involved, there any number of ways that water can travel into and around a structure.

  • Water can come up through the seams of a poorly designed or improperly installed waterproofing membrane
  • Job site conditions such as dust can spoil the adhesion of a membrane to concrete and prevent a system from performing as designed
  • Imperfections, voids and cracks in concrete can create a pathway for water to migrate in and around a structure.

To manage the risks outlined above and meet the challenges of below-grade construction, a robust, high-performing and easily installed waterproofing system is required.

650
million square feet installed worldwide
25+
year track record
75
countries supplied
0
water tracking
Overview

Protect your structure with a proven waterproofing membrane

Comprised of a robust HDPE film, pressure-sensitive adhesive and protective coating, Preprufe® forms a robust, permanent and aggressive adhesive bond with any concrete slab. Preprufe® products are specifically designed to perform in critical applications and incorporate Advanced Bond Technology™ to ensure fully adhered and long-lasting product performance. This technology allows Preprufe® to form a continuous unbroken seal with the concrete for the design life of the project.

A proven, reliable waterproofing solution for critical applications

Preprufe® waterproofing Advanced Bond Technology™ creates a continuous, integral and permanent adhesive bond to concrete. This seal prevents the lateral migration of water into and around the structure and provides performance for the lifetime of the structure. In the case of a breach or installation error, this fully bonded membrane ensures that water under hydrostatic pressure is unable to migrate between the membrane and concrete, therefore limiting the risk of catastrophic waterproofing failure. Independent testing and a 25+ year track record has proven that Preprufe® can resist lateral water migration at extremely high pressure — 70+ meters of hydrostatic head pressure. For this reason, Preprufe® systems are globally proven in the world's most critical applications.

Contractor friendly, straightforward installation to ensure performance and accelerate project schedules

Many systems in the market today require the use of welding or mechanically fastened laps. These installation requirements require a skilled installer, introduce risk to the installation and take time, effort, and expertise. These methods require a large crew and specialized equipment in addition to creating the potential for dangerous and unpleasant site conditions such as odor. In addition to the logistical challenges, these processes tend to be finicky— common jobsite challenges such as dust and moisture can easily result in incorrectly completed laps and details, both of which may result in expensive and costly long-term consequences.

By contrast, Preprufe® Plus can be applied with a minimal crew and requires no special equipment for installation. Installation is simple: a "kick-out" design allows workers to unroll a sheet in seconds. A dual adhesive ZipLap™ seam allows sheets to bond to one another easily, and is designed to resist common nuisance conditions onsite - dust, debris and moisture.

World-quality waterproofing

With applications on mega projects such as the Alaskan Viaduct, the largest bored tunnel on Earth, Preprufe® has been proven the world over in critical applications. Over the last 25 years, builders have installed more than 650 million square feet of Preprufe® in below-grade applications—there’s hardly a more trusted brand in waterproofing. For more information on how Preprufe® can benefit your project, contact GCP today.

Contractor References

Find application instructions, installation details and detailed drawings.

access your product handbook

Distributor Locator

Looking for a distributor that supplies air barriers, flashing, weather resistive barriers, roofing underlayments, waterproofing, injection materials or flooring?

see who's in your area

Product Warranty

Click on the login to access the site with your username and password. Please add GCPAT\ (including the slash) in front of your user name when entering user name. If you need assistance, please contact Denise White at: 617 498-4555 or Denise.I.White@gcpat.com

Product Listing
  • Product
  • Description
  • Key Benefits
  • Applications Type
PREPRUFE® 250
Description

Preprufe® 250 is a composite sheet comprised of an HDPE film, an aggressive pressure sensitive adhesive and a weather resistant protective coating. Using GCP's unique Advanced Bond Technology, Preprufe 250 provides a continuous seal to cured concrete, prevents lateral water migration and provides long-term waterproofing performance.

Key Benefits
Application Type
Preprufe® Detail Tape
Description

Preprufe® Detail Tape is a specially formulated, two-sided, highly aggressive tape. It is a 2 in (50 mm) wide x 50 ft (15 m) long self-adhesive tape with a release liner.

Key Benefits
Application Type
  • Detailing accessory to the Preprufe® and Preprufe® SCS Systems
  • Adhering Hydroduct® drainage composites and insulation boards to waterproofing membranes

 

Preprufe® Grout CEM 100
Description

Preprufe® Grout CEM 100 is a high strength, cementitious, non-shrink grout for re-profiling of pile heads prior to the application of Preprufe® Grout EG 75 or for concrete substrate repairs. When used with Preprufe® Grout EG 75, continuity of Preprufe® waterproofing systems at pile heads and similar structural penetrations is achieved. 

Key Benefits
  • Compatible with Preprufe® Grout EG 75
  • Low permeability
  • Shrinkage compensated (non-shrink)
  • High bond to concrete substrates
  • Rapid strength gain
Application Type
  • Re-profiling of pile heads before the application of Preprufe® Grout EG 75
  • Re-profiling of structural penetrations through Preprufe® sheet waterproofing systems before the application of Preprufe® Grout EG 75
Preprufe® Hydrophilic Sealant
Description

A caulk-applied hydro-swelling sealant designed as a water stop for use around penetrations and in both horizontal and vertical construction joints.

Key Benefits
  • Solvent free
  • >200% expansion
  • Can be applied to damp surfaces
  • Strong adhesion
  • Ease of application
Application Type
  • As a water stop around pipe penetrations, rebar, utility conduits and other penetrations
  • Horizontal and vertical construction joints in concrete surfaces
  • As a detailing accessory to the Preprufe® Waterproofing System
Preprufe® Plus Low Temperature Membranes
Description

Preprufe® 300R Plus LT & 160R Plus LT membranes are unique composite sheets comprised of a thick HDPE film, a pressure sensitive adhesive designed for installation between 25°F (-4°C) and 60°F (16°C) and weather resistant protective coating. Designed with Advanced Bond Technology™ and a dual adhesive ZipLap™, Preprufe® Plus membranes form a unique, integral bond to poured concrete, preventing both the ingress and lateral migration of water while providing a robust barrier to water, moisture and gas.

Key Benefits
  • Fully-bonded to concrete
  • Fully-adhered adhesive to adhesive watertight lap barrier to water, moisture and gas
  • Easy roll/kick out installation
Application Type

Preprufe® 300R Plus LT & 160R Plus LT membranes are applied either horizontally to smooth prepared concrete, carton forms or well rolled and compacted earth or crushed stone substrate; or vertically to permanent formwork or adjoining structures.

Preprufe® 200
Description

Preprufe® 200 is a composite sheet membrane comprised of a robust HDPE film, an aggressive pressure-sensitive adhesive and a weather resistant coating. Using patented Advanced Bond Technology, Preprufe® 200 Membrane provides a continuous seal that resists water ingress and migration between the membrane and the structure.

Key Benefits
  • Prevents water migration
  • Fast and easy installation
  • Avoids delays
  • Excellent vapor barrier
Application Type

It can be applied either horizontally to smooth prepared concrete, well-rolled and compacted sand or compacted crushed stone blinding; or vertically to permanent formwork or adjoining structures.

Preprufe® 300R & 160R
Description

Preprufe® 300R & 160R membranes are unique composite sheets comprised of a thick HDPE film, pressure sensitive adhesive and weather resistant protective coating. Designed with Advanced Bond Technology™, Preprufe® 300R & 160R membranes form a unique, integral bond to poured concrete, preventing both the ingress and lateral migration of water while providing a robust barrier to water, moisture and gas.

Key Benefits
  • Forms a unique continuous adhesive bond to concrete poured against it
  • Fully-adhered watertight laps and detailing
  • Provides a barrier to water, moisture and gas
  • Zero permeance to moisture
Application Type
Preprufe® 300R Plus & 160R Plus
Description

Preprufe® 300R Plus & 160R Plus membranes are unique composite sheets comprised of a thick HDPE film, pressure sensitive adhesive and weather resistant protective coating. Designed with Advanced Bond Technology™ and a dual adhesive ZipLap™, Preprufe® Plus membranes form a unique, integral bond to poured concrete, preventing both the ingress and lateral migration of water while providing a robust barrier to water, moisture and gas.

Key Benefits
  • Forms a unique continuous adhesive bond 
  • Provides a barrier to water, moisture and gas
  • Easy roll/kick out installation
  • Release liner free
Application Type
PREPRUFE® FLEX
Description

Preprufe® FLEX is a composite sheet comprised of robust highly flexible backing, an aggressive pressure sensitive adhesive and a weather resistant protective coating using GCP's unique Advanced Bond Technology.

Key Benefits
Application Type
Preprufe® Grout EG 75
Description

Preprufe® Grout EG 75 is a high performance, solvent free, impermeable epoxy grout for maintaining continuity of Preprufe® waterproofing systems at pile heads and similar structural penetrations. The product comprises of a base epoxy resin, an epoxy hardener and graded mineral aggregates. The three components are supplied pre-measured for easy on site mixing at the correct ratio.

Key Benefits
  • Water resistant adhesion to all products in the Preprufe sheet waterproofing system
  • Impermeable
  • High bond to substrate
  • Rapid strength gain
  • High compressive, flexural and tensile strengths
Application Type
  • Waterproofing of pileheads and pilecaps
  • Waterproofing of structural penetrations through Preprufe® waterproofing systems
  • Recommended thickness range 1/2" (13mm) - 3" (75 mm)
Preprufe® Low Temperature Membranes
Description

Preprufe® Low Temperature (LT) Membranes (300LT and 160LT) are unique composite sheets comprising a thick HDPE film, an aggressive pressure sensitive adhesive formulated for application temperatures down to 25°F (-4°C), and a weather resistant protective coating.

Key Benefits
  • Fully-bonded to concrete
  • Barrier to water, moisture and gas
  • Low temperature application
  • Immediately trafficable
Application Type
Preprufe® SCS
Description

Preprufe® SCS is a unique blindside waterproofing system specifically developed to provide a high performance waterproofing solution for shotcrete foundation walls.

Key Benefits
  • Durable system designed specifically to withstand the force of shotcrete placement
  • Post-injected grout fills and seals, providing ultimate waterproofing protection
  • Aggressive bond to shotcrete resists lateral water migration
  • Excellent resistance to hydrostatic pressure
Application Type

Shotcrete foundation walls

Preprufe® Tape and Preprufe® CJ Tape
Description

Preprufe® Tape and Preprufe® CJ Tape are specially formulated two sided, reinforced pressure-sensitive tapes. These tapes are constructed with a highly aggressive adhesive which is designed to adhere to penetrations, protrusions and GCP waterproofing membranes.

Key Benefits
Application Type
  • Detail areas including end laps, penetrations and repairs to Preprufe waterproofing systems
  • Construction joints
Preprufe® Tieback Cover
Description

The Preprufe® Tieback Cover is a specially designed, two-part cover used to maintain waterproofing integrity at soil retention tieback heads. The Preprufe® Tieback Cover consists of a base and cover, and is assembled on site to provide a simple and quick waterproofing detailing aid used with the Preprufe® system. 

Key Benefits
  • Prevents water migration
  • Fully-adhered watertight laps using Preprufe Tape
  • Simple and quick to install
  • Easy to inspect
Application Type

The Preprufe Tieback Cover can be installed over cable and rod type tieback heads. 

Resources

Filters:

Resource Type