Plaster-Weld® bonds new plaster to any clean, structurally sound, interior surface. (NOTE: Plastering can begin immediately as soon as bonding agent is dry to the touch or delayed a week to 10 days with no effect on bond). Plaster Weld Bonding Agent bonds new plaster to any clean, structurally sound, interior surface. At contractor’s option, Plaster-Weld® and a white skim coat of plaster may be applied on interior ceilings, walls, beams and columns in place of smooth or rubbed concrete surfaces as shown or specified. Reapply Plaster-Weld® over areas not satisfactorily covered.Īpply a white skim coat of plaster 1/16 to 3/16 inch thick over Plaster-Weld® direct to concrete ceilings and other structural surfaces as shown and specified (the mixing, application and finishing of white coat shall be as specified for regular white finish coat). Inspection of bonding agent: Prior to applying plaster, inspect bonding agent application to assure a continuous pink film over the entire bonding surface. Application of wallpaper to newly bonded plastered surfaces should be delayed 90 days. Wait 60 days before applying bonding agent over newly painted surfaces. Glossy painted surfaces should be dulled with an abrasive. (NOTE: Painted surfaces must be sound, washable and firmly adhered to the substrate. Concrete & Plaster Bonding Agents Weld Creteo Concrete & Plaster Bonding Systems Worldwide since 1952 Performance Properties (Weld-Crete & Plaster-Weld) Property Test Method & Results ASTM C-932 for Weld-Crete, Tensile Bond Strength average 485 psi. ![]() Form release agents, curing compounds, hardeners, and sealers must be compatible with Plaster-Weld®.Īpplication of bonding agent: Apply Plaster-Weld® uniformly using brush roller, or spray to form a continuous pink film over the entire surface. casien and calcimine paints), and silicone.Surfaces to receive Plaster-Weld® Must Be Structurally Sound And Clean, free from loose material, dust, dirt, oil, grease, wax, loose paint, mildew, rust, laitance, or efflorescence. Weld-Crete® is also used for: bonding setting beds for ceramic tile bonding Portland cement plaster and stucco mixes and to bond to surfaces such as brick, block, tile, marble, metal, glass block, soundly adhered paint (non-soluable in water, i.e. ![]() Use Weld-Crete’s® open time to your advantage in bonding to concrete shear walls when you need a time lapse between application of bonding agent, placement of reinforcement steel, placement of formwork and placement of concrete. ![]() Celebrating their 60th Anniversary in 2011, Larsen Products prides itself on their reliability, consistency, and overall quality. Weld-Crete® can be "painted on" in a single application 1 hour to 10 days prior to concrete placement. Larsen Weld Crete® concrete bonding agent and Plaster-Weld® plaster bonding agent have been specified by major architects, engineers, and construction companies internationally, ever since their inception in 1952. ![]() For exterior and interior use, Weld-Crete® will bond new concrete, Portland cement plaster and cementitious mixes to structurally sound concrete floors, walls, columns, beams, steps and ramps. The original chemical concrete bonding agent, Weld-Crete® incorporates polyvinyl acetate homopolymer in a patented formulation. Weld-Crete® bonds new concrete, stucco, tile setting beds and terrazzo to any structurally sound surface, interior or exterior.
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