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DY-BAC Self-adhesive Bitumen Waterproof Membrane
BAC self-adhesive bitumen waterproof membrane is a kind of reinforced self-adhesive waterproof sheets, made in polyester felt and soaked by self-adhering polymer modified bitumen. The soaked felt is covered with polyethylene felt, aluminum foil or sands and isolation paper on top of them . With the polyester felt , the tensile strength of DYS has been increased to resist the leak caused by the stress deformation and crevice from reinforced concrete, so it shall be the first choice to use RSRB as the waterproofing materials .
1.High tensile strength and elongation which adapts to contraction or crack of the base .
2.Excellent adhesive property and able to be applied in dampening surface, and good ability to resist the water break though.
3.Good acid, alkali and other chemical substances resistance.
4.High self-cure ability and extensibility
5.Easy operation and increasing working-efficiency to save expenses.
6.Nontoxic, flavourless , meeting the environmental requirements.
Technical Capacity Index
1.Ref to Executive Standard C840-1999 without any felts.
2.Ref to Executive Standard JC898-2002 with polyester felt.
Scope of application
It can be widely used in waterproof works on industry or civil s roofing, basement, tunnel ,the metal roofing , roofing greening and other waterproof projects.
1. Process : Base treatment ->Smearing the basic surface disposing pharmaceutical->Connection point treatment -> Laying the DYS -> Treatment at the end part -> Acceptance of project
Base treatment: The base must be clean, solid, level, dry; no light, grit, rift and loosing dust. For a large recess , fill it with cement mortar and then level it . Remove the protrusion and clean dust.
Smearing the basic surface disposing pharmaceutical: Beat up the pharmaceutical fully , paint the base evenly .Reference volume 0.2kg/m2. Lay the sheets after it become dry .
Connection point treatment: All tube roots, such as tube for rainwater or through the walls , must be sealed before lay the sheets. The width between additional layers and vertical plane must be greater than or equal to 250mm.
Laying the membrane: Confirm the direction and order of the sheets, mark the base with the line, then stick the sheets. Spread out the rolled materials (the side layer of insulation should be downward), arrange them at the appropriate site, cut out by the requirement of the size , roll a sheet from one end to the mid part ,cut off the film if insulation and roll to compact with a roller .Repeat the above step for the other part.. When cracks or bubbles come to the sheets, it needs the sheets over than 100mm width to seal the false place.
Treatment at the end part: When the end part is on the horizontal or the vertical place, polyurethane sealant must be used on them. When the end part is on the façade place, metal strips , sealants and screws must be added to fix the end part.
1.No steel or hard thing to pierce the sheets
2.In process of laying ,eliminate the air under the sheet and roll it to adhere to the base surface .
3.Keep the sheets from the dirty , polluted or frozen place or places with water.
Storage and Transportation
1. Different items, models dimension and grades should be stored separately.
2 .Put the product in a dry, ventilated place with the height less than 5 layers .
3. Guarantee period is a year in normal environment.
4. All the rolls should be erect without any putting across or incline. Cover the canvas when necessary.
modified bituminous sheet materials(SBS/APP) with PE film(PE)
Guangzhou Dayu Waterproof Co., Ltd. is a high-tech industrial company integrating the R&D, production, sales and installation setting up in 1995. We specialize in the research of waterproofing, leak-mending, reinforced and insulating technology in building industry, and supply a full range of products, like the most advanced waterproof polymer materials.
Our products have been systematized, diversified and professionalized. Accredited by exports, the waterproof thermal insulation ... View detail