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Palmer Mirro-Mastic - 5 Gallon Can

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Palmer Mirro-Mastic - 5 Gallon Can

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Availability: In stock.

Minimum Order Quantity: 1
For any questions or pricing call 301-779-2430.

Quick Overview

GDI Palmer Mirro-Mastic is an adhesive mastic formulated for adhering plate glass mirror and acrylic mirror to various substrates, such as drywall, wood, glass, metal, or tile. Mirro-Mastic has been field and laboratory tested for compatibility with all major brands of plate glass mirror, acrylic mirror and backing paints. Black in color.
GDI Palmer Mirro-Mastic is an adhesive mastic formulated for adhering plate glass mirror and acrylic mirror to various substrates, such as drywall, wood, glass, metal, or tile. Mirro-Mastic has been field and laboratory tested for compatibility with all major brands of plate glass mirror, acrylic mirror and backing paints. Black in color.

  • The Industry Standard for High Quality Mastic
  • Cures to a Strong, Permanent Bond
  • Does Not Become Hard or Brittle with Age
  • Palmer Application Guidelines Available Here




  • Mirro-Mastic is ideal for large mirrored walls, columns and vanities. It can be applied to help compensate for variations between the substrate and the mirror.

    On porous substrates, such as drywall or wood, use GDI Palmer Mirro-Mastic Bond or a primer or sealer to seal the substrate. On non-porous substrates, such as glass or tile, sealing is not necessary. Mirro-Mastic may be used with GDI Category Two Safety Tape Film that has been washed with a 70% solution of isopropyl alcohol (IPA). Mirro-Mastic should be applied as directed to the mirror or substrate in pats. The GDI Palmer Electric Applicator and GDI Palmer Mastic Stik are available for ease of application.

    CEILING APPLICATION:
    Ceiling mirrors MUST be applied with four applicator scoops of mastic to the square foot in conjunction with permanently installed mechanical fasteners and applied to moisture resistant drywall. Wood products should not be used. To get the proper application, the GDI Palmer Electric Applicator MUST be used. Moisture resistant drywall provides the best surface for applying mirrors. Most interior plywood, particleboard or fiberboard is treated with fire retardants that may cause poor adhesion. The drywall must be clean and dry. Also, make sure it is rigid, plumb, and smooth. Seal the surface with GDI Palmer Mirro-Mastic Bond prior to application of the mastic. (Never apply over previously painted surfaces or wall coverings.) Be sure the ceiling is not under bathrooms or kitchens where bowl, sink, or tub water could run over and damage the ceiling.

    Press into place and gauge for 1/8 to 3/16 inch (3 to 5 millimeters) clearance between ceiling and mirror.

    Coverage: With minimum coverage, one gallon will install approximately 130 square feet (12 square meters) of mirror.

    Shelf Life: 2 years on unopened cans.
    SKU PM205

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