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32857 Parchem Technical Data Compendium 2015_Crop4emag.pdf

CONTENTS CONCRETE REPAIR CORROSION CONTROL GROUTS & ANCHORS PROTECTIVE COATINGS INDUSTRIAL FLOORING SURFACE TREATMENTS JOINT SEALANTS CONCRETE JOINTING ROOFING WATERSTOPS WATERPROOFING JOINT FILLERS TIMBER FLOORING ALPHABETICAL Properties Product code: Plain: 742040 INDEX 504 Mineral Grey: 742060 Form: Torch applied reinforced sheet Size: Roll width 1 m, length 10 m Colour: 4 mm Plain: Black 4.5 kg Mineral: Grey or Green Thickness: Plain 4 mm, Mineral 4.5 kg Reinforcement: 160 gsm non-woven polyester Impermeability - to > 60 kPa water (EN1928): Tensile strength (EN18202) - longitudinal - transverse 750 N/50 mm 600 N/50 mm Ultimate elongation (EN12311-1) - longitudinal - transverse 50% 50% Cold flexibility (EN1109) -15°C Dimensional stability: Stable below 120°C Application temperature: 5°C - 45°C ambient Service temperature (continuous ambient): -10°C - 100°C Maintenance No special requirements, any damage identified during normal inspections should be repaired or replaced as appropriate. Specification Clauses Where so designated on the drawing the surfaces shall be covered with a torch applied, polyester reinforced, waterproofing membrane applied. The membrane shall have a thickness greater than 4 mm, incorporate an elastoplastomeric non-woven spunbonded polyester reinforcing fabric and be based on distilled bitumen, plastomers and elastomers. Such a product is Testudo as supplied by Parchem. Areas shall be prepared and the membrane applied in accordance with the current Testudo data sheet paying attention to priming requirements. Application Instructions Surface preparation All surfaces to which Testudo is to be applied must be smooth and free from contaminants and loose material. Rough concrete must be “faired up” before commencing application. Contact your local Parchem branch for suitable products from our extensive range. Priming Index Bitumen Primer should be applied at the rate of approximately 8 m2 per litre to the surfaces to which Testudo will be applied. The coverage rate for the primer will vary depending on the porosity of the surface being treated. Allow the primer to dry for at least 1 hour at temperatures 25oC and above, until the primed surface is tack free. At lower temperatures allow additional drying time to ensure a tack free surface. Priming should only be carried out on surfaces that will be covered with the membrane on the same day. Application Planning the installation of the membrane is important to ensure joins occur in suitable locations. The Testudo membrane must be laid to form end laps of 150 mm. Side laps must be 100 mm unless a mineral membrane top layer is being used in which case side laps are set at 70 mm for the mineral top layer and all layers below. If the membrane is to be spot bonded, full bonding must occur for 1 metre each side of the end laps. Application of the membrane is by torch bonding using a suitable gas torch. The membrane is applied with the surface protected by the Flamina facing down towards the substrate, during the application of the gas flame the Flamina will melt away. Bonding is achieved by slowly unrolling the membrane whilst directing the flame at the underside of the roll and melting the bitumen by moving the gas torch from left to right. Side laps must be welded with care, correct welding will show a small bead of bitumen along the lap. Attention should also be given to end laps ensuring complete adhesion of the 150 mm overlaps. On completion of the membrane installation all exposed perimeter edges must be mechanically fixed or terminated under a flashing. Protection Testudo membranes are manufactured using polymer modified bitumen which has increased resistance to UV however the Testudo Plain is not recommended for long term exposure without some form of protective topping medium. Testudo Mineral should be used as a cap or weathering sheet for use in non trafficable areas. Where the completed membrane is to be back filled such as with basement applications the Testudo should be protected from mechanical damage with the Emer-Proof Drain V drainage/ protection system, also available from Parchem. Limitations New concrete substrates should be allowed to cure for a minimum of 28 days prior to the installation. Index® Testudo and Testudo Mineral


32857 Parchem Technical Data Compendium 2015_Crop4emag.pdf
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