Butyl Rubber Tank Liner
Butyl Rubber Tank Lining Material 0.75mm – 1.50mm in standard irrigation or WRC drinking water quality grade is a flexible robust material with excellent cut through, abrasion and UV resistance.
Butyl is available for Potable water applications.
Butyl Rubber Tank Liner – Advantages
1. Totally inert no problem with leaching of plasticizers as suffered with PVC
2. Excellent UV and Ozone resistance
3. Brittle point at -30 deg C
4. Does not harden and crack when continually flexed
5. Flexibility makes this product very quick and easy to install
6. Easily repairable
Butyl Rubber Tank Liner – Disadvantages
Life Expectancy Guidelines:
1. More expensive than equivalent thickness plastic material
2. More expensive than EPDM
3. Heavier than FPP and PVC for handling
USA/Mexico: 10 – 12 years
Africa: 10 – 12 years
Northern Europe/Canada: 15+ years
Southern Asia: 10 – 12 years
Test Unit Requirement British Standard
Hardness ºIHR 65+5 BS 903 A26
Tensile Strength MPa Min 7.5 BS 903 A2
Elongation at Break % Min. 300 BS 903 A2
Density g/cm3 1.2 ± 0.05 BS 903 A1
Brittle Point ºC -30 BS 903 A25
Tear Strength N/mm 20 Min. BS 903 A3 C Crescent Test
Properties after Heat Ageing
168 hours at 121º C BS 903 A19
Tensile Strength MPa Min. 6.0 BS 903 A2
Elongation % Min. 200 BS 903 A2
Ozone Ageing
50 pphm, 96hours, 30ºC at 80% Elongation BS 903 A43
No Cracks
Length Change
The samples are conditioned for 24 hours at +20ºC then heated for 1 hour at +100ºc and then cooled during 2 hours to +20ºC and re-measured.
Along % Max 0.5 Across % Max 0.5
These are guidelines only and are dependent on correct installation.
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