Read manufacturers' data sheets for complete specifications, installation procedures, and MSDS precautions.
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Mascobond EVA

Description: A slightly re-emulsifiable, ethyl-vinyl acetate copolymer for use as a liquid bonding agent and admixture. Has bonding ability in dry film and provides a better wet bond than Acrylic. Also, it allows exterior use, increased water and alkali resistance. Considered less sticky, more workable and more versatile than acrylic bonders. Will re-emulsify once and will not re-wet. Can be used as both a bonder and an admixture in interior or exterior applications not subject to constant water immersion. Excellent bonding agent: superior adhesion properties. Workability: improved trowelability over acrylic products.

Application: An excellent primer for use with cementitious compositions because of its one-time re-emulsification ability. Ideal as an admixture with portland cement patches and mortars to increase adhesion, as well as flexural and tensile strength. Will bond to concrete, masonry and brick.

Applicable Standards: ASTM C-1042 and ASTM C-1059 Type I.

Coverage:
Bonding agent for patching compounds: Brush apply at 200 ft²/gal.
Bonding Slurry:
   1 gal. Mascobond EVA
   15 lbs. cement
   15 lbs. sand
Apply @ ¹/16". Scrub material into the pre-dampened surface. Apply concrete or patch while slurry is still tacky. Coverage is approximately 65 ft².
Admixture for patching materials, repairs and topping:
   2 gal. Mascobond EVA
   2 gal. water
   94 lbs. portland cement
   300 lbs. dry sand
Yield: 2.8 ft³

P-100

Description: A ready to use, film forming, one time re-emulsifiable liquid bonding agent for concrete. This material, based on a new technology gives outstanding surface and integral bonding without moisture sensitivity. May be used inside or outside. Developed for use as a primer for our Flowcrete self-leveling material and is also used to prime surfaces before applications of Patchcrete. P-100 is an aqueous resin emulsion. It is a film forming co-polymer emulsion.

Application: Use as a primer for Flowcrete and Patchcrete. Used as a surface bonder to bond fresh cementitious materials such as concrete, stucco, gypsum, plaster, etc. to various surfaces including concrete, masonry, stone, brick, plaster or wood. May be used inside or outside.

Applicable Standards: ASTM C-1059.

Coverage: 1 gal. diluted with water will cover 300–350 ft², varies with surface porosity.

Plaster-Weld

Description: The original plaster bonding agent is a patented formulation incorporating polyvinyl acetate homo-polymer. Designed for interior use only. Color is pink (non-bleeding).

Application: 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. To bond cement mortar beds to smooth concrete for installation of rigid foam insulation. Concrete, brick, block, ceramic tile and metals

Applicable Standards: Conforms to ASTM C-631; Military Specification, MIL-B-19235C(YD); General Services Administration Specification for Bond Adhesive; Corps of Engineers Specification CE-240.01.

Weld-Crete

Description: Weld-Crete, the original chemical concrete bonding agent, incorporates polyvinyl acetate homopolymer in the patented formulation. Can be painted on in a single application, 1–10 days prior to concrete placement. Use Weld- Crete's open time to your advantage in bonding to concrete shear walls, where you need a time lapse between application on bonding agent, placement of reinforcing steel, placement of formwork and placement of concrete. Color is blue (non-bleeding).

Application: For exterior and interior use, Weld-Crete will bond new concrete, portland cement plaster, and cement mixes to structurally sound concrete floors, walls, columns, beams, steps and ramps. Also used for bonding setting beds for ceramic tile and for bonding portland cement plaster and stucco mixes; and to bond to such surfaces as brick, block, tile and metal.

Applicable Standards: ASTM C-932: ASTM C- 631: Military Specification, MILB-19235C(YD): General Services Administration Specification for Bond Adhesive; Corps of Engineers Specification CE-240.01.