Description
Description:
Hydrocell XL is a cross linked, semi-rigid, closed cell polyethylene sheet material used for forming or filling expansion
joints between adjacent in-situ or precast components. Hydrocell XL provides excellent support backing too elastomeric
sealants and is especially recommended for use in expansion joints in brickwork and in the construction of water retaining
and water excluding structures.
Uses:
Hydrocell XL is a cross linked, non-absorbent, semi-rigid, cellular polyethylene joint filler used for forming expansion
joints in concrete, brickwork and blockwork. The product provides excellent support to sealants subject to hydrostatic
pressure and is particularly recommended for water retaining or water excluding structures.
- Potable water reservoirs
- Culverts and canals
- Sewage tanks
- Roadways and hard standings
- Retaining walls
- Basement structures and subways
- Runways, taxiways and aprons
Advantages:
- Cross linked to resist lateral and hydrostatic pressure
- High density support of sealant to prevent adhesion failure
- Non-absorbent closed cell structure
- High compression recovery
- Non-extruding
- Low load transfer to joint edges
- Non-tainting and rot proof
- Chemically resistant
- Bitumen free
- Natural bond breaker
Standards compliance:
DTp Specification for Highway Works, February 2016, Series 1000, Clause 1015. BS 5628, Part 3: Code of Practice for the Use of Masonry. The compressive strength of Hydrocell XL prevents the transfer of load across movement joints. Each cell is cross linked thereby preventing breakdown under hydrostatic pressure. The closed cell formation prevents the
absorption of water.
Specification clauses:
The joint filler shall be cross linked, non-absorbent, semirigid, cellular polyethylene. It shall have a recovery of 98%
after 50% compression and a compressive strength of 0.15 N/mm² when tested in accordance with ASTM D3575. It shall
have a water absorption of less than 0.05% by volume when tested in accordance with ASTM D3575 and be resistant to
weathering and chemical attack
Application instructions
Joint sealing slots
When forming expansion joints with Hydrocell XL in in-situ concrete, joint sealing slots can be readily formed in the following manner.
Before installing, simply cut off a strip to the required depth. Pin the strip back by using 50 mm nails at approximately 100 mm intervals. Then install the filler flush with the finished surface. Prior to sealing, the top strip can then be pulled easily from the joint to provide an uncontaminated sealing slot ready for preparation and sealing.
As elastomeric sealants will not bond to Hydrocell XL the additional need for bond breaker strips is eliminated.
Estimating
Hydrocell XL is supplied in the following sheet sizes and can
be easily cut to the required size with a Stanley knife or saw.
10 mm x 1000 mm x 2000 mm
15 mm x 1000 mm x 2000 mm
20 mm x 1000 mm x 2000 mm
25 mm x 1000 mm x 2000 mm
For details of other thicknesses, contact Fosroc
Limitations
Hydrocell XL should not be used when the operational temperature is continuously below -70°C or above 100°C.
Storage
Hydrocell XL should be stored in original unopened packaging, in cool dry conditions, away from sunlight.
Precautions
Health and safety
There are no known health hazards associated with Hydrocell XL in normal use.
Important note
Fosroc products are guaranteed against defective materials and manufacture and are sold subject to its standard Conditions for the Supply of Goods and Services, copies of which may be obtained on request. Whilst Fosroc endeavors to ensure that any advice, recommendation, specification of information it may give is accurate and correct, it cannot, because it has no direct or continuous control over where or how its products are applied, accept any liability either directly or indirectly arising from the use of its products, whether or not in accordance with any advice, specification, recommendation of information given by it. All Fosroc datasheets are updated on a regular basis. It is the user’s responsibility to obtain the latest version
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