Nuratech TPE Application Method - Adhesive
- Allow membrane to relax prior to installing fixings (5-10 mins depending on ambient temperature). Unroll the Nuratech SG over the prepared substrate and fold back approximately half its length.
- Using a sheepskin or similar roller apply a primer coat of Spectrabond PU to the substrate surface, priming only the area of roof where the membrane will be laid. The PU adhesive must be given time to activate prior to applying the membrane. On activation i.e. the point at which the adhesive will afford the highest bond strength, the surface of the adhesive starts to change from pink to opaque. (Photo A)
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Carefully roll the Nuratech SG into the primed surface and roll with water filled roller or soft bristled broom. (Photo B)
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Fold back other half of the roll of Nuratech SG and repeat the procedure.
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Unroll the next roll of Nuratech SG, ensuring the end laps are staggered and the side overlaps the previously installed sheet by 50mm.
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Repeat the adhering process.
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Fully hot air weld the 50mm side lap and allow to cool completely. If using a automatic welder maximum speed is 6m per minute. (Photo C)
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Mechanically check the integrity of the cooled weld by running a 4mm wide screwdriver along the joint.
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Watch a video showing how to apply and install Nuratech TPE
A - Primer installed
B - Press Nuratech into primer
C - Welding sheet joints