Specification :

Dr. Fixit Torchshield

range of polymer modified bitumen waterproofing membranes are manufactured from rich bitumen &
select polymers blended together to obtain excellent heat resistance & cold temperature flexibility. The polymer modified bitumen is then coated on to a dimensionally stable non-woven polyester/ fibre glass carrier to obtain high tensile strength, tear & puncture resistance. The Dr. Fixit Torchshield membranes are available in both SBS & APP modified versions.

Features & Benefits

Self finished, jointless monolithic membranes provide excellent water tight and vapour barrier system
High tensile, tear & puncture resistance
Can take thermal & structural stresses effectively, without any fatigue
Laid quickly & easily; safe & environment friendly
Do not undergo early ageing, thus provide long life durable membrane
Easy melting & fixing, thus saving on usage of expensive gases
Available in 3, & 4 mm thickness APP / SBS modified membrane rolls

Technical Information

Size : 1 x 10 meter
Thickness : 3 mm to 4 mm
Softening point : : 100-150°C
Penetration at 25°C dmm : 15-40 dmm
Tensile strength (L/T)N/5cm : 700/550
Elongation at break (L/T)% : 40/50
Tear Resistance (L/T)N : 140/160
Water absorption % : < 0.15

Packing

Range of 3 & 4 mm membranes in Polyester or fibre glass base in 1 mtrs X 10 mtrs rolls

AREA OF APPLICATION:

G.I. & AC Sheet Roofs
Industrial Roofs
Swimming Pools
Sloped Roofs
Flat Roofs
Parking area
Bridges & Tunnels
Foundation of Retaining Wall
Basements

Method of Application

This application procedure is a standard guideline for using the 3 & 4 mm membranes only, which may slightly vary upon the site conditions & different application areas.
Clean & remove dust, dirt, loose particles and unsound substrate. Make surface smooth, even & free from local
depressions with polymer modified mortar
Apply primer coat with solvent based bitumen primer on cleaned & leveled surface @ 3-5 sq. mtr / ltr
Unroll the Dr. Fixit Torchshield Roll after application of primer
Align the Dr. Fixit Torchshield Roll correctly & re-roll it in alignment before torching
Use gas burner to heat substrate & underside to softening points. When the embossing disappears, roll forward &
press firmly against substrate to bond from the lower end towards the higher end
Keep overlap margin for minimum 100 mm
Heat both the overlaps & use round tipped trowel to seal overlap. Excess compound should be smoothened &
pressed into seam using hot trowel
All angles & abutments upstands should be sealed with extra care to ensure perfect bondage. Seal the edges well
into grooves & protect with a Polysulphide sealant
Dr. Fixit Torchshield applied all over the terrace and finished with aluminum paint for non foot traffic area. For foot traffic area, overlay with concrete screed mortar.

Clean & remove dust, dirt, loose particles and unsound substrate
Apply primer coat with solvent based bitumen primer Unroll the DR. FIXIT TORCHSHIELD roll

Align the Dr. Fixit Torchshield Roll Use gas burner to heat substrate & underside to softening points Keep overlap margin for minimum 100 mm

Heat both the overlaps & use round tipped trowel to seal overlap Seal the edges well
and protect with a Polysulphide sealant Dr. Fixit Torchshield applied all over the terrace

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Precautions & Limitations

Any naked flame should be kept well away from gas cylinders.
When ignited the Dr. Fixit Torchshield should be watched at all times.
The torch should not be rested on finished roofing.
Extreme care should be taken when working near combustible materials or items which might be scorched by the gas flame.
Not to be applied in extreme cold climatic conditions (below 50C)
Not to be applied on damp/wet areas & areas subject to moisture restoration.
Do not overheat the Dr. Fixit Torchshield membrane i.e. avoid heating when it starts smoking.
The bleeding should be at least 10 to 15 mm on the edges and should be finished with hot trowel
The moisture content on the surface should not exceed 6% to overlay the membrane
Use of a Solvent Bitumen based primer is a must. For better result, use the Dr. Fixit Primer.