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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 JOINT FILLERS WATERPROOFING WATERSTOPS ROOFING TIMBER FLOORING ALPHABETICAL INDEX 309 Emer-Seal® PU Deep joints should incorporate a backing strip such as Expandafoam or Stiffjoint to support the sealant while also acting as a bond breaker. Priming requirements Good adhesion can be gained to clean, dry, uncontaminated concrete, timber, metals, ceramics, brickwork and most coating surfaces without the use of primers. On some surfaces however, adhesion may be improved by the use of a primer. Where doubt exists over the suitability of the substrate for unprimed adhesion, site trials should be conducted in conjunction with priming advice from Parchem. In most applications optimum adhesion to concrete and other porous materials can be achieved using Primer 21. Primer 13 must be used on concrete in applications subject to semi-permanent or long term water immersion. On nonporous materials such as metals, Primer 4 or Primer 6 is recommended. Gun Loading Emer-Seal PU is applied using a suitable sealant gun. Insert the sachet into the gun, cut a slit in the top of the sachet, replace the end cap and apply the sealant. Application Extrude the sealant firmly into joint to ensure complete contact with joint faces. Tool the sealant into the joint. Smooth finish if necessary with a spatula wetted with a dilute detergent solution. Cleaning Clean tools immediately after use with Solvent 10. Limitations Do not apply Emer-Seal PU to bituminous surfaces or allow bitumen to contact Emer-Seal PU. Paintability - although polyurethane sealants will generally accept painting with acrylic coatings, it is possible for plasticisers to migrate over time and stain the surface of the coating. Parchem recommends the use of Emer-Seal MS in these applications. Supply 600 ml foil sachet, cartons of 20 Product Code 620520 Emer-Seal PU Grey 600ml Sausage Coverage On average one 600 ml sachet will supply 12 metres of 10 mm x 5 mm sealant bead Storage Shelf life 6 months. Store in a cool dry place.


32857 Parchem Technical Data Compendium 2015_Crop4emag.pdf
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