Jointex - Polyethylene Joint Former
Insulation, Marine & Water, Building & Construction
Lightweight, cross-linked, closed cell, expanded Polyethylene joint former with hinged temporary blocking piece.
Colours: White
Branded Products
Directions for use:
- Ensure all concrete surfaces are free from base grit and dust.
- Apply glue in vertical strips 100 mm wide and 25 mm from the top to avoid the tear-off strip from sticking to the concrete face.
- Allow the glue to dry (according to manufacturer instructions) and then stick Jointex onto the glued concrete face.
- Cast the next section of concrete as required. Take care not to let the wet concrete get behind Jointex as this will result in a wavy joint.
- When the joint sealant is about to be applied, simply peel the tear-off strip out of the formed joint, leaving an even groove of uniform depth for filling with sealant.
Typical Compression Stress - strain (Compression - deflection): ISO 3386/1:
- Jointex has good compression qualities with good recovery capacity.
- Supplied with a hinged temporary blocking piece, leaving a clean, neat and perfectly sized groove providing a consistent depth channel for joint sealant.
- Supplied cut to size, eliminating wastage and cutting on site.
- The material is flexible and can be used around corners.
- Excellent resistance to chemicals.
- Is waterproof, does not disintegrate, rot or swell.
- No bond breaker required.
- Used as an expansion and contraction joint former.
- Compression Deflection: 10 %: 36 kPa; 25 %: 61 kPa; 50 %: 143 kPa.
- Compression-Set: 25 % 22 hr COMP. / 24 hr REC.: <6 %; 50 % 22 hr COMP. / 24 hr REC.: <20 %.
- Resistance: Good resistance to dilute acids and alkalis.
- Flammability: <310 mm / min. on a 3 mm sample.
- Thermal Conductivity: 24;°C: 0.037 W/m.K.
- Temperature Range: Up to 90°C.
- Tensile Strength: >163 kPa.
- Elongation and Break: >144 %.
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