Spray-applied waterproofing technology.

STRATASEAL SG provides a broad range of solutions to meet specific waterproofing needs. STRATASEAL SG consists of a water-based asphalt emulsion which is enhanced with polymers and catalyzed to form a seamless, monolithic waterproofing membrane. Perfect for large and small jobs, STRATASEAL SG utilizes a convenient spray delivery system that provides for fast application.


STRATASEAL SG can be applied to concrete, masonry, wood, ICF (insulated concrete forms), and metal surfaces. It can also be applied to green concrete or damp surfaces, which can allow the project to proceed on schedule. No priming is necessary. The material has exceptional bonding strength to most substrates and excellent elongation and recovery properties. STRATASEAL SG is a VOC compliant, non-flammable formulation without harsh odors.

STRATASEAL SG is typically sprayed perpendicular to the surface being coated and applied to achieve a dry film thickness of 60 mils (1.5 mm). With excellent adhesion properties, STRATASEAL SG forms a durable, highly flexible and impervious seal, resistant to moderate hydrostatic pressures. The CAT-7 Catalyst is effectively and efficiently mixed with the emulsion at the spray nozzle just as the material is being applied.

For detail work or for small areas, STRATASEAL is available in a roller grade (STRATASEAL RG) or trowel grade (STRATASEAL TG,) formulation. Its fluid application allows it to be installed at difficult areas, such as around multiple pipe penetrations and over irregular substrates. STRATASEAL SG membranes require a protection board for all applications and are best applied when ambient temperatures are above 40°F (4°C).

STRATASEAL SG offers ease of application and cleanup, high performance, as well as, cost efficiency not found with many spray-applied waterproofing systems.

Spray Equipment: For spray equipment sales and technical assistance please contact Spray Equipment & Service Center Inc. at 1-800-666-6072 or click here.

STRATABOND 100 Reinforcement Fabric

A 1.5-oz/sq-yd high strength, spun bonded polyester fabric used as a reinforcing layer with STRATASEAL HR hot-applied rubberized asphalt membrane. Stratabond 100 maintains its physical properties when wet and dimensionally stable over varying humidity levels and exhibits high resistance to splitting and cracking from thermal shock.


A hot-applied rubberized asphalt membrane, STRATASEAL HR is ideal for protected roof and split-slab deck waterproofing applications. Its a 100% solids thermoplastic product that is flexible as well as self-sealing. STRATASEAL HR is ready for use and requires no set-up.


An active, flexible strip concrete construction joint waterstop, WATERSTOP-RX provides a strong positive seal by expanding upon contact with water. Proven effective on projects worldwide for over 20 years, Waterstop-RX is designed for both continuous and intermittent hydrostatic conditions. WATERSTOP-RX is available in multiple configurations.

Approval and Certifications

Architectural Specifications

Case Studies

LEED Letter

Product Manuals

Product Sheets

Technical Data Sheets

Helios Energy Research Facility

Berkeley, CA, USA

From design development to construction, CETCO’s expertise in waterproofing was called upon to ensure that the basement, housing expensive laboratory equipment, remains dry at all times. CoreFlex’s composite system also saved the added labor of a two-membrane installation process.

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Mercy Hospital Plaza

St. Louis, MO, USA

To minimize building exposure, poor air quality, and odors, this occupied hospital utilized COREFLEX to waterproof the plaza deck prior to installing a GreenScapes vegetated roof system, hard-scape and water features.

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Ronald McDonald House

Chicago, IL, USA

CETCO provided the complete watertight green roof assembly for the nation’s largest Ronald McDonald House. Protected by CETCO’s COREFLEX® waterproofing membrane, three GreenScapes assemblies—intensive, extensive, and vegetated trays—were utilized to meet a challenging landscape design.

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Rush University Hospital Atrium

Chicago, IL, USA

Rush University is one of the top-ranked nursing colleges in the US. Its hospital is comprised of 676 beds and boasts national rankings in 10 of 16 specialty areas in U.S. New & World Report’s 2011 “America’s Best Hospitals” issue.

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Shady Hills Gymnasium and Parking Garage

Cambridge, MA, USA

The original spec called for ULTRASEAL below slab with a layer of VOLTEX DS installed over it to provide protection from subsequent concrete operations. However, once the dewatering of the site began, it became apparent that there would be significantly more water at a greater flow rate.

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Toronto Fire Services

Totonto, ON, Canada

Vapor intrusion has become a significant environmental issue for regulators, industry leaders, and concerned residents nationwide. The use of a spray-applied gas vapor barrier to protect against the threat of vapor intrusion has become a widely recognized application by numerous local and state regulatory and guidance groups.

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Wake Forest University Hosp. Plaza Deck Restoration

Winston-Salem, NC, USA

Restoration of the plaza deck was required for watertightness of the hospital space below and reopening of the emergency room entrance. COREFLEX was quickly installed over the leaking hot-applied rubber membrane to complete the project on time with minimal building exposure.

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Washington Univ. School of Medicine Plaza Deck Restoration

St. Louis, MO, USA

When it was decided that a courtyard would be implemented into the WUSM/BJC Medical complex, the design team understood that waterproofing and protecting the occupied space below during construction would be critical to the success of the project.

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