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P.O. Box 78774
Sharjah | Abu Dhabi - UAE
CRES®ROD
Closed cell polyethylene backing rod
Closed cell, non-absorbent and chemically inert polyethylene foam flexible rod. It is designed for use as a compressible joint backing material for elastomeric and a wide variety of cold applied joint sealants
Properties:
- Expansion, isolation, control and coping joints
- Highway and pavement joints.
- Parking decks & curtain walls.
- Perimeter of window and door frames.
- Pre-cast panels.
Uses:
- Non-absorbent surface eliminates three sided adhesion of the elastomeric sealant.
- Forces sealant to have maximum sidewall adhesion.
- Light weight and compressible. Can easily be accommodated in joints of varying widths.
- Controls joint depths and ensures a proper width to depth ratio..
- Closed cell structure does not allow the absorption of moisture or air.
- Highly resilient. Accommodates dynamic joints.
- Fully compatible with a wide variety of sealants.
- Rat proof & Non-staining and chemically inert.
Packing & Colour:
| Packing | Colour |
|---|---|
| (mm Ø): 6, 10, 15, 20, 25, 30, 40 & 50 | White/Grey |
Related Document(s):
How to Use:
- Joint Preparation: The joint surface must be clean, dry and free from oil, loose particles, cement laitance and other contaminants which may affect the adhesion. A thorough wire brushing, grinding, sand blasting or solvent cleaning may be required to expose a clean and sound substrate. On painted surface all loosely adhering paint must be removed, if in doubt remove all previous decorations. Remove all round or sharp edges and corners which might perforate or cause damage to the backing rod.
- Installation: Select a backer rod whose diameter is at least 20% larger but not greater than 33% of the joint width. This will ensure that the backer rod remains in compression and in place during sealant installation. The backing rod shall be inserted in to the joint by using a blunt tool or roller and forced gently in to the joint till the desired depth is achieved, whilst making no damages to the joints and edges.