CM Foam Strip Polyethylene Backer – Various Sizes
- Suitable For: general purpose sealant backing and gap filling
- Area of use: INT & EXT
- Type: foam strip
- Colour: grey
- Brand: CM Sealants
- Manufactuer: CM Sealants
Foam Strip – Sealant Polyethylene Backer Strip
Non-absorbent compressible white closed cell polyethene foam backup material. Insert into a joint to control sealant depth & create a backstop. Strip of 100m of 12mm x 12mm square polyethene foam joint filler and backing for sealants and acoustic applications. Compatible with all know types of sealants to control the depth of the sealant in proper relation to joint width. Provides backing against which the sealant is applied, forcing the sealant to the sides of the joint for adhesion.
Also, we provide the backer foam in rods or rolls in all sizes, 13mm and 10mm backer rod equivalent. Fire protective backer foam is also available here.
For more from CM Sealants, you can visit their website here.
- General Purpose Sealant backing
- Together with Self-levelling sealant
- Expansion Joints
- Irregular joints
- Metal and pre-cast panels
- Around perimeters of door and window frames
- Coping and glazing joints
- Log Cabins / Homes
- Draft Proofing & Acoustic Work
Choosing the correct size:
Select a backer strip width that is approximately between 15 and 25% larger than the width of the joint to give a firm base. The backer strip can be compressed down into gaps slightly tighter than its width.
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| Elementlength | |||||||
| up to 1,5 m |
up to 2,5 m |
up to 3,5 m |
up to 4,5 m |
up to 2,5 m |
up to 3,5 m |
up to 4,5 m |
|
| Type of window frame material |
Minimum witdth of joints for a butled mounting b in mm |
Minimum witdth of joints for a inner mounting b in mm |
|||||
| Hard PVC (white) | 10 | 15 | 20 | 25 | 10 | 10 | 15 |
| Hard PVC and PMMA (dark) (colour extruded) |
15 | 20 | 25 | 30 | 10 | 15 | 20 |
| Hard PUR integral foam | 10 | 10 | 15 | 20 | 10 | 10 | 15 |
| Wood-aluminium-window | 10 | 10 | 15 | 20 | 10 | 10 | 15 |
| Aluminium-plastic sandwich frame (bright) |
10 | 10 | 15 | 20 | 10 | 10 | 15 |
| Aluminium-plastic sandwich frame (dark) |
10 | 15 | 20 | 25 | 10 | 10 | 15 |
| Wooden window frame | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
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