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 Index® Fidia P and Mineral INDEX 488 Page 2 Priming Index Bitumen Primer is normally applied to all concrete and masonry substrates. Index Bitumen Primer should be applied at the rate of approximately 8 m² per litre to the surfaces to which Fidia 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. Fidia membrane must be laid to allow side laps of 100 mm and end laps of 150 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 torch from left to right. Side laps must be welded with care. Correct welding will show a bead of bitumen along the lap. Side laps should be 100 mm wide. Attention should also be given to end laps ensuring complete adhesion allowing 150 mm overlaps. On completion of the membrane installation all exposed perimeter edges must be mechanically fixed or terminated under a flashing. Protection Whilst the Fidia membrane is based on a polymer modified bitumen which is resistant to UV, it is not recommended for long term exposure without some form of protective topping medium. Fidia Mineral should be used as a cap or weathering sheet for use in non-trafficable / maintenance traffic areas. Where the completed membrane is to be back filled such as with basement applications the Fidia 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.
Technical Dayta Sheet Compedium
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