![]() Plaster-Weld® can be used over paints having oil, rubber or vinyl bases, and over silicone-treated surfaces, as well as latex paints. sheet lead in x-ray rooms) and marble are suitable sound surfaces, structurally. Weld-Crete Case Studies Plaster-Weld Helps to Recreate a Masterpiece LARSEN CONCRETE & PLASTER BONDING SYSTEMS Larsen Weld-Crete and Plaster-Weld bonding agents have been specified by major architects, engineers and construction companies throughout the world since 1952. Concrete, brick, block, glass, ceramic tile, wallboard, metals (e.g. Plaster-Weld® prepares the surface to allow you to plaster directly to concrete over electric radiant heat cable, and to bond cement mortar beds to smooth concrete for installation of rigid foam insulation. Designed for Interior Use only, the high performance bonding of one-coat finish plaster and/or two and three coat work to concrete ceilings, walls, columns, beams, and other structurally sound surfaces. The original chemical plaster bonding agent is a patented formulation incorporating polyvinyl acetate homopolymer. Plaster-Weld® bonds new plaster to any clean, structurally sound, interior surface. Product Families: Other Construction Chemicals, Construction MaterialsĬhemical Family: Polyvinyl Acetates (PVA) ![]() tested & field proven.Applications: Wall Panels, Other Flooring & Surface Applications, Building Materials No bond failure after 25 consecutive days. To seepage of strong detergents & synthetic urine for 10 hrs. tests for fire resistance.Īcid Resistance 1” concrete slabs bonded to 1/2” gypsum plaster subjected Toxicity Enclosed mice exposed to 30 cc volatilizedįire Resistance ASTM E-119 (bonded assembly). Bonding Agents - Larsen Products Plaster-Weld Plaster Bonding Agent. Specimens brought to 145º F, no bond failure.įreeze-thaw Stability 5 cycles freeze (-10º F & thaw). Plaster-weld Plaster Bonding Agent Stores - Larsen Plaster Weld Plaster. Plaster-Weld is applied as a liquid and as it dries to a thin, flexible film, it forms a tenacious bond to the structural surface. Temperature Range ASTM C-932 (Weld-Crete®) Shear Bond Strength ASTM C-1042 (slant shear cylinder test). Tensile Bond Strength ASTM C-932 for Weld-Crete®,įlexural Bond Strength ASTM C-78 (concrete beams laminated ![]() casein and calcimine paints), and silicone. 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-soluble 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. 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. Weld-Crete®can be "painted on" in a single application 1 hour to 10 days prior to concrete placement. The original chemical concrete bonding agent, Weld-Crete® incorporates polyvinyl acetate homopolymer in a patented formulation. ![]() Applies simply by brush, roller, or spray in a uniform coating, and dries. It provides enhanced plaster adhesion to surfaces like gypsum plaster, cinder block, stone, drywall panels, and other similar materials. Weld-Crete® bonds new concrete, stucco, tile setting beds and terrazzo to any structurally sound surface, interior or exterior. USG Plaster Bonder: Pink is a vinyl acetate homopolymer emulsion used to bond new plaster to any structurally sound interior surface.
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