Butyl Rubber is the original geomembrane liner suitable for water, water soluble chemicals and some acids. High elongation at yield makes it suitable for applications where movement or settlement is possible and confined space applications also suitable for low temperature (-30°C) use.
Butyl Rubber is available in a range of thickness from 0.75mm to 2.00mm and in both plain (foil) and reinforced versions.
A number of versions are approved for use with drinking water (WRAS Certified) and for use in building projects (Agrement Board approval).
If you are unsure if Butyl Rubber would be most suited to your needs please contact us on + 44 (0)1277 653281.
Butyl Rubber Mechanical Properties
| Typical Properties |
Test Method |
Specification (Typical Values) |
Minimum Values |
| Tensile Strength |
BS 903 Part A2 |
8.0 MPa |
7.0 MPa |
| Modulus at 300% |
BS 903 Part A2 |
5.5 MPa |
4.5 MPa |
| Elongation at Break |
BS 903 Part A2 |
350% |
300% |
| Tear Strength |
BS 903 Part A3 |
30 N/mm |
25N/mm |
| Ozone Resistance (7 days/50pphm/300C |
BS 903 Part A43 Procedure A |
|
50% extensions No cracks |
| Heat Aging (Retentions) (7 day @ 1000C) |
BS 903 Part A19 |
6.0 Mpa 250% |
5.6 Mpa 200% |
| Flex Cracking |
BS 903 Part A10 |
|
200.000 cycles, no crack |
| Specific Gravity |
BS 903 Part A1 |
1.24 +/- 0.03 |
|
| Nominal Weight |
@ 1mm thickness |
1240 g/m2 |
|
| Dimensional Stability |
1 hr at 1000 C |
+/- 1% Max |
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| Grade AA Agrement Board Certificate No. 87/1884 |
Grade WRAS Water Byelaws Scheme Approval to BS 6920-2000. |
Download the chemical resistance chart
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