SWELLSEAL® 8 is a hydrophilic vulcanized expansive rubber strip for the sealing of joints in underground pre-cast elements, vertical construction joints and concrete - steel joints.
SWELLSEAL® 8 is available in at (Type F) and round (Type R) strips. SWELLSEAL® 8 is made from a combination of chloroprene rubber and a hydrophilic resin, resulting in good expansion and excellent chemical resistance.
- Sealing of joints between concrete pre-cast elements
- Sealing of vertical construction joints
- Sealing of pipe penetrations
- Sealing of concrete-steel joints
- High swelling capacity for high pressure applications
- Good impact resistance
- Reversible swelling properties
- Non-sag when correctly placed around pipes and in vertical joints
- Easily installed by nailing or using SWELLSEAL® WA
- Can absorb small movements in joint due to exibility.
- Chemically resistant*
* Chemical resistance chart available on request.
|SWELLSEAL® 8||TYPE F||TYPE R||TEST|
|Elongation at break||600%||620%||ASTM D2240|
|Shore A Hardness||53||53||ASTM D2240|
|Specific Density||1.27||1.27||ASTM D471|
|Expansion in water||580% (1d)
|Water Pressure Resistance||>65 psi||DNCC||DNCC|
|Tensile Strength||1,009 psi<||1,109 psi||ASTM D412|
|Apperarance||Green rectangular or round strip of hydrophilic vulcanized expansive rubber with smooth sides.|
|Dimensions||Type F 1/8” x 3/4”
(3 mm x 20 mm)
|Type R 1/4” diam. (6 mm)|
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
|SWELLSEAL® 8 TYPE F||SWELLSEAL® 8 TYPE R|
|1 roll = 49.2 ft (15 m)||1 roll = 551 ft (168 m)|
|1 case = 10 rolls ( 28 lbs)||1 case = 1 roll (30 lbs)|
Unlimited shelf life when stored in a dry place in its original packaging.
Prior to the installation of SWELLSEAL® 8, the surfaces should be levelled, dry, clean and free of oils, dust and laitance.
SWELLSEAL® 8 can only function properly in a confined space in order to develop suficient expansion pressure and assure waterproofing.
The expansion of SWELLSEAL® 8 will create pressure, therefore installation in the middle of the joint is preferred. Concrete cover of at least 6” is required on all sides. SWELLSEAL® 8 can be applied on both smooth and rough concrete.
On smooth concrete:
Roll the SWELLSEAL® 8 between the inner and outer rebar and nail down with a gun (4 to 5 nails per yard) or x horizontally with SWELLSEAL® WA.
On rough concrete:
Gun SWELLSEAL® WA in a 3/8”bead between inner and outer rebar. Press SWELLSEAL® 8 firmly into the SWELLSEAL® WA. Apply extra nailing (4 to 5 nails per yard) in vertical applications.
SWELLSEAL® 8 Type F and R can be installed around pipes, either by using with SWELLSEAL® WA by connecting the ends with a steel wire.
Installation during rain or in prolonged contact with water can result in a premature swelling of the strip, which should be avoided. If the SWELLSEAL® 8 has been exposed to water prior to encapsulating in the concrete, allow it to dry and shrink back to its original configuration. 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.
Requires 6” concrete cover on all sides. 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.
DE NEEF and SWELLSEAL are trademarks, which may be registered in the United States and/or other countries, of GCP Applied Technologies Inc. This trademark list has been compiled using available published information as of the publication date and may not accurately reflect current trademark ownership or status.
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GCP Applied Technologies Inc., 62 Whittemore Avenue, Cambridge, MA 02140 USA.
In Canada, GCP Canada, Inc., 294 Clements Road, West, Ajax, Ontario, Canada L1S 3C6.
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Last Updated: 2018-12-12