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    ​A/BC (Adhesive Base Coat) is a 100% acrylic adhesive and base coat that is field-mixed with Type I or Type II Portland cement. It has a very creamy texture that spreads easily.

    ​Smooth, creamy consistency
    ​Trowels on easily, speeding mesh embedment and reducing applicator arm fatigue; increases job-site productivity
    ​Familiar 1:1 mixing ratio
    ​Easy to mix—less chance of error
    ​100% Acrylic
    ​Provides long-term durability
    ​Water based
    ​Safe, non-toxic; clean up easily with soap and water


    A/BC is designed for use as the adhesive and/or base coat in several wall systems from Finestone.​
    A/BC is used with the Pebbletex Wall System to adhere expanded polystyrene insulation board to the following acceptable substrates:  
    • Finestop
    • Finestop-RA
    • Unpainted and unglazed concrete or unit masonry
    • PermaBase® brand cement board (or other ASTM C1325 Type A Exterior approved cement boards)
    • Poured concrete/unit masonry
    • ASTM C1177 type sheathings, including eXP™, GlasRoc®, DensGlass™, Securock™, Weather Defense™ Platinum and GreenGlass® sheathing
    • Gypsum sheathing (ASTM C79/C1396)
      Note: Do not use on wood-based sheathing substrates
      A/BC is used with Pebbletex EIFS, Pebbletex-D, -D7, -D10, Finescreen CBS and all Finestone Textured Acrylic Surfacing Systems to embed Corner Mesh and Finestone Reinforcing Mesh.

      A/BC will also adhere expanded polystyrene insulation board (EPS) to expanded polystyrene insulation board enabling the build out of architectural shapes and details.


    27.2 kg per 19-liter pail (60 lbs per 5-gallon pail)


    Approximate coverage rates are as follows:

    • Adhere EPS insulation board to substrate: 14.8 m² (160 ft²) per pail via notched trowel method; 16.7 m² (180 ft²) per pail via ribbon and dab method.
    • Embed Standard Mesh: 26 m² (280 ft²) per pail
    • Embed Intermediate 12: 18.5 m² (200 ft²) per pail
    • Embed Hi-Impact 20 and Standard mesh: 14.8 m² (160 ft²) per pail
    • Adhere EPS insulation board to substrate and embed Standard Mesh: ​​​​​11.1 m² (120 ft²) per pail

    Finestone Adhesive / Base Coat Product Bulletin

    Finestone Adhesive / Base Coat Product Bulletin


    Material Safety Data Sheets