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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 INDEX 310 Technical Data Emer-Seal® MS Sheet One part elastomeric high performance paintable sealant Uses Sealing joints in concrete panels, marble, granite blockwork and brickwork. And also for use in sealing joints around aluminium and timber door and window frames and between metal and some plastics. Advantages „ Outstanding weathering and UV resistance „ Excellent primerless adhesion to timber, masonry, aluminium, metal and ceramics „ Paintable with water based acrylic paints „ Will not stain masonry or other surfaces „ Neutral cure - will not corrode metals „ Low odour „ Contains no isocyanate Description Emer-Seal MS is a high performance elastomeric joint sealant based on hybrid polymer technology. Emer-Seal MS offers the weathering and adhesion performance of a silicone sealant together with the toughness and durability of a polyurethane sealant. Design Criteria Emer-Seal MS may be applied in joints with typically a minimum joint size of 5 mm wide by 8 mm deep for porous surfaces or 5 mm wide by 5 mm deep for non-porous surfaces, and generally a maximum joint width of no more than 40 mm. Emer-Seal MS Expandafoam Properties Data quoted are typical for this product but do not constitute a specification Form: Smooth, non-slump paste Movement Total 40% (± 20%) accommodation factor: Cure: Chemically cures to an elastic solid Skinning time at 23°C: 100 min - 200 min @50%RH Cure time at 25°C: >2mm / 24h @ 50%RH Typical hardness shore 25 ± 5 ‘A’: 100% Modulus: 0.34 MPa Chemical resistance to occasional spillage: Good resistance to dilute acids and alkalis Continuous service temperature range: -40°C to 100°C Solids content: 98% approximately Density: 1.5 g/cm³ Flammability: Will support combustion Maintenance There are no special requirements, however, any damage found during routine inspections should be cut out and replaced. Specification Clauses Where so indicated on the drawings joints are to be sealed using Emer-Seal MS, modified silicone sealant as supplied by Parchem. Application Instructions Preparation The joint surfaces must be thoroughly dry, clean and frost free. Joint surfaces must be clean, dry and free from frost. Remove all dirt, laitance, loose materials and foreign matter. Remove all rust, scale and protective lacquers from metal surfaces. Non-porous surfaces should be degreased using Solvent 10. In all joints a bond breaker must be used to prevent sealant contact with the back of the joint, to allow optimum sealant performance. In shallow joints self-adhesive polyethylene tape can be used. Deep joints should incorporate a backing strip such as Expandafoam PEF Rod to support the sealant while also acting as a bond breaker. Priming requirements Good adhesion can be gained on 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 - refer to your local Parchem office for advice. To achieve optimum adhesion to concrete, particularly if subject to “ponding” water, Primer 13 should be used. Sealing joints in concrete and other masonry products. March 2010


32857 Parchem Technical Data Compendium 2015_Crop4emag.pdf
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