Cordex - Sealant Backing Cord
Insulation, Building & Construction
Sealant backing cord made from low density, non cross-linked, closed cell, expanded Polyethylene foam.
Colours: Grey and White
Branded Products
- Cordex is waterproof.
- Compatible with joint sealants such as silicone, polysulphide, polyurethane, butyl, bitumen and acrylic sealants.
- Requires no bond breaker between the cord and the sealant.
- Is highly flexible and has a good recovery capacity, providing a permanent secondary seal behind the joint sealant.
- Hour-glass cross-section cell structure ensures that stresses are uniformly distributed so that maximum bonding occurs at high-stress areas.
- Used in various types of expansion joints as a backer for joint sealant or caulking materials.
- Used in vertical joints and elevated horizontal joints in concrete, brick or metal construction.
- Used in copings, doors, curtain wall construction and pre-cast units.
- Can also be used for piping in the furniture industry.
- Closed cell expanded Polyethylene
- Diameter: -6 mm to 60 mm
- Shrinkage: < 5% @ 70°c / 24 Hrs
- Temperature Range: -10°c to 70°c
- Water Absorption: 5 % of volume after 24 hrs.
- General: Totally inert and has no rodent attraction. Must not be stored in clear plastic bags. Has a skin surface, therefore no sealants adhere to it's surface.
- A variety of roll sizes are available on request. Availability of non-standard sizes dependent on order quantity.
