Sika Bituseal T 140 SG

Product Details

Sika BituSeal T-140 SG (0°C) (SA) is a torch-on sheet waterproofing membrane that is flexible to 0°C. It is based on APP (atactic polypropylene) modified bitumen, reinforced with polyester non-woven fabric. It has a sand broadcast surface and the reverse is faced with polyethylene film to ease installation works.UsesWaterproofing and damp-proofing of the exterior walls of basements against percolating water and damp soilWaterproofing of retaining wallsWaterproofing on flat roofs under protective layers or ballastWaterproofing on flat and exposed roofs and under tilesWaterproofing on balconies/terraces under tilesCharacteristics /AdvantagesResistant to ageingResistant to weatheringGood tensile strength and elongationHigh resistance to water vapour (non-vapour permeable)Good dimensional stabilityFlexible at low temperaturesEasy to install with the torch-on methodNot resistant to root penetrationSuitable as top layer for multi-layer installationsGood resistance to mechanical impactMust be installed on suitable primed, uniform and smooth substrates such as concrete and brickworkTests Approval / StandardProduct may not be sold in EC-countriesInstallation on roofs according to EN 13707 and basements acc. to EN 13969Product data Appearance / ColorRolled sheet membrane, reinforced with polyester non woven fabricSurface: sand broadcastReverse: polyethylene film to ease installationStorage conditions /Shelf life24 months from date of production. Store in dry conditions between +5°C to+35°C. Rolls must be stored in their original package, in vertical position andunder cool and dry conditions. They must be protected from direct sunlight, rain,snow and ice.Application Method / Tools:The cold applied bituminous primer shall be applied on the substrate for the first membrane layer as followings:Application by brush, roller, or airless spray. Waiting time is dependent on the temperaturee, for the primer to complete evaporation. (Note: Priming is not required for the second and further membrane layers).The membrane is fully bonded to the substrate by the torch-on method using agas torch. Unroll and position the membrane roll with the polyethylene film surface on the substrate. Roll out half a roll length, heating the membrane reverse with the gas flame until it melts the polyethylene film and bitumen mass, and allowing continuous unrolling. A bead of liquid bitumen must be visible on the underside of the roll. The torch-on membrane must be firmly pressed onto the substrate in order to avoid air entrapment using a special roller or heavy brush. Repeat this procedure with the second half of the roll.All membranes must be overlapped by a min. 100 mm. The seams must be finished with a roller to prevent the formation of any gaps or voids.Notes on application /Limitations:Read the Sika bituminous membranes installation manual before installing the bituminous membranes.This product shall only be used by installers, skilled and experienced in the installation of torch-on bituminous membranes.Avoid damage to previously installed membranes during the torch-on of further layers of sheet membrane.The water tightness of the structure must be tested and approved after completion of the membrane installation works according to the requirements of the client's specifications.Value baseAll technical data stated in this Product Data Sheet are based on laboratory tests.Actual measured data may vary due to circumstances beyond our control.