Bitusheet XL is intended for use as a self bonding vertical or horizontal damp proof membrane in tanking below ground structures, subways and retaining walls.


Rubber Bitumen thickness 1.4mm Roll length 19.05m
Polythene backing 0.1mm Roll weight 34kg
Total thickness 1.5mm Area of roll 20m2
Roll width 1050mm Overlap Edge 50mm with selvedge
End 100mm
Test Typical Result
ASTM D146 Low temperature pliability Better than – 5°C
ASTM D2240 Durometer hardness type A 60
ASTM E154 Puncture resistance 220N
ASTM D1228 Water absorption (2 hours) 0
ASTM D471 Water absorption (670 hours at 70°F) 0.12%
ASTM D1191 Slump on 90° gradient 6 hours @ 70°C 0
ASTM E96 Water vapour transmission 25°C.75% rh
transmission
0.20 g/m2 per day
ASTM D1004 Tear strength Longitudinal 4.2N/mm2
Tear strength Transverse 4.8N/mm2
ASTM D638 Tensile strength Longitudinal
Tensile strength Transverse
42N/mm2
48N/mm2
ASTM D638 Compound Elongation 1300%
ASTM D638 Elongation at break 210%
ASTM D573 Percentage change in elongation after
heat ageing at 70°C.
Dimensional Stability (2 weeks at 60°C)
Longitudinal 0.1%
Transverse -0.2%
Bond strength of self 30 N/cm
Bond strength to primed concrete 20N/cm
BS 2782
Method 320 Membrane strength 50 N/cm
MOAT 5.1.4 Water penetration at joint 0%