SWELLSEAL® 2010 TPR Data Sheet

Hydrophilic Rubber Strip

Product Description

SWELLSEAL® 2010 TPR is a non-vulcanized hydrophilic waterproofing strip made from an elastomer and a hydrophilic resin. It has a swelling capacity of 200%, and when confined will swell in contact with water to seal the joint against leaks. A feature of the composition is delayed swelling when in contact with water, making Swellseal 2010 TPR ideal for in situ concrete installations.

Product Advantages

  • Proven track record in concrete structures subject to high water pressure
  • Reversible swelling properties
  • Non-sag when correctly placed around pipes and in vertical joints
  • Easily installed by nailing or using SWELLSEAL WA® or DENEPOX® GEL 125
  • Chemically resistant*Chemical resistance chart available upon request


  • Sealing cold and construction joints
  • Sealing pipe penetrations
  • Sealing joints between precast elements
  • Sealing vertical construction joints


Typical Properties

Elongation at break Approx. 220% ASTM D412
Shore A Hardness 50 ASTM D2240
Specific density 1.2 ASTM D471
Swelling capacity in contact with water 200% (10 days) ASTM D471
Water Pressure Resistance 100 psi DNCC
Tensile Strength 218 psi ASTM D412
Apperarance Black rectangular strip of hydrophilic resin and elastomer  
Dimensions ⅜” x ¾” (10mm x 20mm)  

Note: The data shown above reflects typical results based on laboratory testing under controlled conditions. Reasonable variations from the data shown above may result.

Packaging & Handling

1 roll SWELLSEAL® 2010 TPR = 32 ft
1 case SWELLSEAL® 2010 TPR = 5 rolls
Unlimited in a dry place in its original packaging.

Installation Guidelines

Prior to the installation of SWELLSEAL® 2010 TPR, the surfaces should be levelled, dry, clean and free of oils, dust and laitance.

SWELLSEAL® 2010 TPR can only function properly in a confined space in order to develop sufficient expansion pressure and assure waterproofing.
The expansion of SWELLSEAL® 2010 TPR will create pressure, which needs to be counteracted by the proper concrete coverage. The required concrete coverage varies from 3.25 inches – 4.0 inches on all sides depending on concrete strength.

Concrete Strength (psi) 2550 2982 3408 3834 4260
Minimum Concrete Coverage 4” 3.7” 3.5” 3.48” 3.28”

SWELLSEAL® 2010 TPR can be applied on both smooth and rough concrete.

On smooth concrete:

Roll the SWELLSEAL® 2010 TPR between the inner and outer rebar and nail down with a gun (4 to 5 nails per yard) or fix horizontally with SWELLSEAL® WA or DENEPOX® GEL 125.

On rough concrete:

Gun SWELLSEAL® WA or DENEPOX® GEL 125 in a 3/8” bead between inner and outer rebar. Press SWELLSEAL® 2010 TPR firmly into the WA or DENEPOX®  GEL 125 . As SWELLSEAL® 2010 TPR is heavy in long strips, especially in vertical applications, apply extra concrete nailing (4 to 5 nails per yard). Install SWELLSEAL® 2010 TPR with the 3/4” surface upwards.

Installation during rain or in prolonged contact with water can result in a premature swelling of the strip, which should be avoided. If SWELLSEAL® 2010 TPR is exposed to water prior to encapsulating in the concrete, allow to dry and shrink back to its original configuration. Important: Roll ends are simply butted together to assure a waterproof seal. Do not install in overlap. The strip needs to be in contact with the joint over its full length.

Health and Safety

Always use protective clothing, gloves and goggles consistent with OSHA regulations during use. Avoid eye and skin contact. Do not ingest. Refer to Safety Data Sheet (SDS) for detailed safety precautions. In the event of an EMERGENCY call: CHEMTREC 800-424-9300.


For concrete cover of less than 4 inches, refer to the Installation Procedures for concrete strength requirements. Avoid installing product during heavy rains.


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We hope the information here will be helpful. It is based on data and knowledge considered to be true and accurate, and is offered for consideration, investigation and verification by the user, but we do not warrant the results to be obtained. Please read all statements, recommendations, and suggestions in conjunction with our conditions of sale, which apply to all goods supplied by us. No statement, recommendation, or suggestion is intended for any use that would infringe any patent, copyright, or other third party right.

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This document is only current as of the last updated date stated below and is valid only for use in the United States. It is important that you always refer to the currently available information at the URL below to provide the most current product information at the time of use. Additional literature such as Contractor Manuals, Technical Bulletins, Detail Drawings and detailing recommendations and other relevant documents are also available on www.gcpat.com. Information found on other websites must not be relied upon, as they may not be up-to-date or applicable to the conditions in your location and we do not accept any responsibility for their content. If there are any conflicts or if you need more information, please contact GCP Customer Service.

Last Updated: 2022-10-24