Larsen Products

Larsen Products

8264 Preston Court, Jessup 20794, Maryland

(800) 633-6668
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Manufacturers
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General info

Creates chemical-bonding agents that incorporate polyvinyl acetate homopolymer to provide a 3-way bond of cementitious material directly to structural surfaces.

Weld-Crete bonds new concrete, stucco, tile setting beds and terrazzo to any structurally sound surface, interior or exterior. 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.

The original chemical concrete bonding agent, Weld-Crete incorporates polyvinyl acetate homopolymer in a patented formulation. 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. 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.

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. casien and calcimine paints), and silicone.

Plaster-Weld bonds new plaster to any clean, structurally sound, interior surface. The original chemical plaster bonding agent is a patented formulation incorporating polyvinyl acetate homopolymer. 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. 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. Concrete, brick, block, glass, ceramic tile, wallboard, metals (e.g. sheet lead in x-ray rooms) and marble are suitable sound surfaces, structurally. Plaster-Weld® can be used over paints having oil, rubber or vinyl bases, and over silicone-treated surfaces, as well as latex paints.

Acrylic Ad-Mix 101 is an integrally added bonding agent to bond new concrete, portland cement plaster, and mortar mixes. Acrylic Ad-Mix 101 is an organic polymer (a white, milky liquid) which is mixed with varying proportions of water according to the performance required and reates a hard, durable surface resistant to most chemicals and acids, imparts excellent water and weather resistance, improves curing qualities, and reduces shrinkage cracking.