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Backing Rod
Backing rod is a closed cell, non absorbent and chemically inert polyethylene foam flexible rod. Polyrod is designed for use as a compressible joint backing material for elastomeric and a wide variety of cold applied joint sealants.
Description
Backing rod is a closed cell, non absorbent and chemically inert polyethylene foam flexible rod. Polyrod is designed for use as a compressible joint backing material for elastomeric and a wide variety of cold applied joint sealants.
Application
Expansion, isolation, control and coping joints.
Highway and pavement joints.
Curtain walls.
Perimeter of window and door frames.
Parking decks.
Pre-cast panels.
Log home chinking.
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 into the joint by using a blunt tool or roller and forced gently into the joint till the desired depth is achieved, whilst making no damages to the joints & edges.
Diameter
Backing rod mm Ø 10 15 20 25 30 40 50
Technical Data
| PROPERTIES | VALUE |
| Form | Compressible closed cell circular foam cords |
| Color | White/grey |
| Density, [g/cc] | 0.03 ± 0.005 |
| Durability | Excellent |
| Dimensional stability | Excellent |
| Service temperature, [°C] | -40 to 70 |
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