Part of the Sikaplan WT Membrane System

Transcription

1 Product Data Sheet Edition: Version Sikaplan WT Tape 200 Sikaplan WT Tape 200 Part of the Sikaplan WT Membrane System Product Description Uses Characteristics/ Advantages The Sikaplan WT Tape 200 is a waterproofing tape based on modified Polyolefin (FPO). As a waterproofing tape that is heat weldable to Sikaplan WT waterproofing membranes 1200, 2200, 5200 and 6200, based on polyolefin (FPO). The Sikaplan WT Tape 200 is used to connect the Sikaplan WT membranes to the substrate at edges and terminations, whilst maintaining a high quality watertight seal. Very good mechanical attributes Long-term water resistance Plasticiser-free Hot air weldable Bond the membrane to the substrate at terminations Creation of sealed compartments for compartment waterproofing systems Product Data Form Sikaplan WT Tape 200 Appearance / Colours Rolled, prefabricated black coloured tape with a grey signal layer. Packaging Sikaplan WT Tape 200 Thickness: 2 mm Width: 200 mm Roll: 20 m Storage Storage Conditions / Shelf Life 12 months from date of production if stored properly in undamaged, unopened, original sealed packaging, in cool and dry conditions at temperatures between +5 C and 30 C. Opened and unprotected rolls must be used immediately. 1 1/5

2 Technical Data Chemical Base Modified Polyolefin (FPO) Fire Rating SIA 272: 4.2 (EN ISO : Class E) Service Temperature Mechanical / Physical Properties -30 C min. to +40 C max. (wet) -30 C min. to +60 C max. (dry) Tensile Strength > 15 N/mm 2 (EN ISO 527/3/5 100) Tear Strength 40 kn/m (lengthways and widthways) (ISO 34 Method B) 500 % (lengthways and widthways) (EN ISO 527/3/5 100) Seam Strength 300 N/50 mm (2 mm) (EN ) 400 N/50 mm (2 mm) (EN ) Resistance Chemical Resistance; A, Hydrolysis under Acidic Conditions, change in Chemical Resistance; B, Hydrolysis under Alkaline Conditions, change in Elongation at Break Chemical Resistance; D, In contact with Wastewater, change in Cold folding endurance at low temperature Determination of Watertightness (notched Compressive Strength) -40 C (EN 495-5) Waterproof after 72 h at 5 bar water pressure (EN 1928 Method B) Waterproof after 24 h at 10 bar water pressure Fatigue Resistance No leakage at 7 N/mm 2 (50 h) (SIA V ) Weathering, change in Tear Strength and System Data System Structure 75% (EN 12224, 350 MJ/m2 / ISO 527-3/5) The Sikaplan WT Tape 200 system consists of a modified Polyolefin (FPO) tape and Sikadur epoxy adhesives. One type of the tape is available: Sikaplan WT Tape 200 Suitable Sikadur adhesives are: Sikadur-Combiflex CF Adhesive (type N) Sikadur-31 CF (type N) Note: The system configuration as described must be fully complied with and may not be changed. 2 2/5

3 Application Conditions / Instructions Application Method / Tools Substrate quality - Concrete: Minimum age of concrete 3-6 weeks, dependent on the environmental conditions. The substrate must be mechanically prepared e.g. by blast-cleaning, to be free from any cement laitance, damaged concrete, old surface treatments or coatings and then all loose or friable particles must be removed to achieve a contaminant free, open textured surface. The substrate must be dry or maximum mat damp. When applied to mat damp concrete, brush the adhesive well into substrate. Avoid condensation. The substrate temperature must be at least 3 Kelvin above the dew point. Application of adhesive: For full application details including substrate and ambient temperatures, storage, mixing, pot-life, consumption of the adhesive etc., please refer to the relevant Product Data Sheet for the adhesive. Application of the Tape: Where necessary clean the surface of the Sikaplan WT Tape 200 with a clean dry or damp cloth. Use water and do not use solvent for this cleaning. Check the integrity of the tape to ensure that there is no damage from storage or transport (e.g. heavy scratches). Remove any damaged sections if necessary. Apply the mixed Sikadur adhesive onto the prepared surface, using a suitable trowel. The bottom layer thickness of the adhesive should be a minimum of 2 mm. The adhesive should be applied to the surface generously. This is necessary to enable the top layer to be in direct contact with the bottom layer of adhesive ~ 10 mm on each side of the tape. Apply the Sikaplan WT Tape 200 within the open time of the adhesive. Press the tape firmly, without trapping air, into the adhesive using a suitable roller. The tape must be fully embedded into the adhesive and the adhesive should be squeezed out on both sides of the tape. Apply a top layer of adhesive along the edge of the tape for at least 4 cm onto the top of the Sikaplan WT Tape 200. The top layer may be smoothened with a brush. 3 3/5

4 Application Method / Tools For vertical or overhead application, the Sikaplan WT Tape 200 must be supported until the adhesive has hardened to prevent it peeling away from the adhesive and to ensure a good bond. Connecting the ends of Sikaplan WT Tape 200: Tape ends are connected by hot air thermal welding. The welding area must be prepared by roughening the surface with scotch brite pads or fine sand-paper. Roughen the tapes only in the welding area otherwise their adhesive bond can be affected negatively. Tape end overlaps have to be min mm. Welding parameters, such as speed and temperature must be established through trials on site, prior to the commencement of any welding works. Basic settings: C Hand welding in the overlap area is carried out in three steps. 1. Spot weld the overlap 2. Pre-weld: weld the rear overlap area so that a 20 mm flap (using a 20 mm nozzle) remains for the final welding 3. Final weld: weld the remaining flap. Guide the roller at a distance of 20 mm parallel to the air outlet of the welding nozzle. Roll the pressure roller fully across the seam. Connecting the Sikaplan WT Tape 200 and Sikaplan WT membranes: The Sikaplan WT Tape 200 and Sikaplan WT membrane must be clean and dry, ready for hot- air welding. To ensure the optimum seam quality, seam preparation is required before hot-air welding. The welding area of the Sikaplan WT Tape 200 must be prepared by roughening the surface with scotch brite pads or fine sand-paper. Use Sarnafil T Prep (yellow) for the seam preparation and cleaning of Sikaplan WT membranes, as described in the Sikaplan WT FPO Sheet Waterproofing Membranes Application Manual. Welding parameters, such as speed and temperature must be established through trials on site, prior to the commencement of any welding works. Please also refer to the Sikaplan WT FPO Sheet Waterproofing Membranes Application Manual Value Base All technical data stated in this Product Data Sheet are based on laboratory tests. Actual measured data may vary due to circumstances beyond our control. 4 4/5

5 Local Restrictions Please note that as a result of specific local regulations the performance of this product may vary from country to country. Please consult the local Product Data Sheet for the exact description of the application fields. Health and Safety Information Legal Notes For information and advice on the safe handling, storage and disposal of chemical products, users shall refer to the most recent Material Safety Data Sheet containing physical, ecological, toxicological and other safety-related data. The information, and in particular, the recommendations relating to the application and end-use of Sika products, are given in good faith based on Sika s current knowledge and experience of the products when properly stored, handled and applied under normal conditions. In practice, the differences in materials, substrates and actual site conditions are such that no warranty in respect of merchantability or of fitness for a particular purpose, nor any liability arising out of any legal relationship whatsoever, can be inferred either from this information, or from any written recommendations, or from any other advice offered. The proprietary right of this parties must be observed. All orders are accepted subject to our current terms of sale and delivery. Users should always refer to the most recent issue of the Technical Data Sheet for the product concerned, copies of which will be supplied on request, or can be obtained at Sika Sverige AB Domnarvsgatan 15 Box 8061 SE Spånga Sverige Tel Fax /5