TORCHSEAL is uniquely formulated prefabricated waterproofing membrane with a special multi-layered design for superior pliability, tensile strength, workability and resistance to elements. The multi-layered design consists of a polyester core coated on both sides with modified bitumen. The polyester core gives the membrane high tensile strength, elongation and superior lap joint strength. Properly installed TORCHSEAL forms an impervious, permanently flexible waterproof blanket which accepts normal structural movement without breaking or cracking.


TORCHSEAL  membranes are ideal for a wide range of waterproofing applications including roofs, reservoirs, basements, tunnels and car parks. TORCHSEAL may be utilized in exposed and covered applications.

Dimensional impermiability
Excellent resistance to aging & weathering
Outstanding bond ability & seam integrity.
Very high resistance to impact & puncture.

TORCHSEAL is installed by torch welding method, loose-laid or fully bonded to substrate. When loose-laid, only laps are bonded together. Peripheries and protrusions are sealed according to specifications.

 The underside of the membrane should be torched just enough to superficially melt the bitumen. Excessive heating may damage the reinforcement. Overlaps should be re-heated from the top and resealed with a trowel to ensure seam integrity.

Roll Length 10mts
Roll width 1 Mt.
Thickness 3, 4, 5, mm
Reinforcement 180 gsm nonwoven polyester fabric. 


a Gas torch, Knife, Trowel, Measuring tape, 
Marking string, Gloves.nd Installation Manual.


TORCHSEAL is available in two basic finishes:
Black smooth finish with polyethylene  surfaces for covered pplications.
Granule surfacing for exposed applications.
       

For flat areas

1.13 M2/M2 per layer

For 30 cm. girth flashing

0.35 M2/Mt/ length

Average wastage

3 - 5%


TORCHSEAL complies with the requirements and tolerance levels of : 
The American Societty For Testing & Material ASTM D-6222 Type I.
UEAtc (European Union of Technical Agreement).
MOAT 27-1983 and MOAT 30-1984.      4.CGSB (Canadian General Standards Board) 37-GP56M-July 1980.

In addition to stringent regular tests by BITUMAT laboratory, our products are tested periodically by Bureau Veritas, SOCOTEC, Paris, France. 


                     

Softening point 0C 145 ASTM D-36
Penetration, @ 250C, dmm 18 + 5 ASTM D-5
Low temperature flexibility 0C 0 to -4 ASTM D-5147
Heat resistance, compound stability @ 80 0C    No flow - Pass ASTM D-5147
Tensile Strength N/5cm        
Longitudenal @230C +2
Transverse		 700  (14 KN/m) 600  (12 KN/m) ASTM D-5147
Tensilestrength,N/5cm Longitudinal @ 18 o C + 2    Transverse 820 (16.8KN/m) 700  (14 KN/m) ASTM D-5147
Elongation %  @ 23 oC + 2
Longitudinal
Transverse		 45
45		 ASTM D-5147
Elongation %  @ 18 oC + 2
Longitudinal
Transverse		 20
20		 ASTM D-5147
Load strain prodcut @ 23 oC + 2
Longitudinal
Transverse


31,000
27,000

 

 CGSB-37-GP-56M
Lap joint strength N/5cm @ 23 oC + 2
Longitudinal
Transverse		 700
600		 CGSB-37-GP-56M          UEAtc
Tear resistance, N                 Longitudinal                           Transverse 400                     350 ASTM D-5147
Puncture Resistance, N   Static indentation
Dynamic indentation		 900
L 3                         l3		 ASTM E 154.
UEAtc 5.1.9                    UEAtc 5.1.10
Water Absorption, % Wt @ 23 0C 24 hrs <0.50

ASTM D-5147
 
Water Vapour Transmission, g/M2/24 hrs 0.01 ASTM E-96 procedure E  37.8 0C at 96% RH

The information given in this Technical Sheet is to the best of our knowledge based on laboratory tests and practical experience. However, as the product is often used under conditions beyond our control, we cannot guarantee but the product itself.