C.R. Laurence Co., Inc.
Connecting the World to Everything Glass
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Catalog Number: GN200A


  • Available in Two High Strength Formulas
  • Builds Out to 2-1/2" (64 mm) without Sag
  • Ideal for Large Mirrored Walls and Uneven Surfaces

  • Available in 10.1 Fl. Oz. Cartridges or Gallon Cans
  • Gunther Application Guidelines Available Here

  • CRL Gunther Ultra/Bond® and Extra/Build® Mirror Mastics are high quality adhesives formulated to provide a strong, permanent bond between electro-copper-plated glass mirror and various substrates. Both have been field tested for compatibility with silver, copper, and mirror backing. Both have an easy working consistency year round, and will adhere to a wide variety of substrates including Drywall, Wood, Metal, Glass, Marble, and Tile but should be tested for Bleeding.



    CRL Gunther Extra/Build® Mirror Mastic - Cartridge


     


    Other Products/Finishes:

    CATALOG NUMBER DESCRIPTION
    GN200A CRL Gunther Extra/Build® Mirror Mastic - Cartridge
    GN201B CRL Gunther Extra/Build® Mirror Mastic - Gallon Can

    Catalog Number:GN200A
    Also Available in These Catalogs:
    CRL53R Glass & Glazing Catalog, PAGE 104G
    CRL23R Frameless Shower Door and Mirror Hardware, PAGE 476J
    CRL03 Sealants, Adhesives, and Fasteners, PAGE N274
    Contents:10.1 fl. oz. (300 ml)
    Type:Extra/Build®
    Ship Via:Hazardous Material - No Air Shipments
    Shipping Weight:1 lb (454g)
    Case Qty:24
    Minimum Order:1 Each

    Gunther Extra/Build® viscosity provides for a build out of 2-1/2" (64 mm) without sag for custom mirrored walls or vanities, where construction is such that there are gaps of over 3/4" (19 mm) between the mirror and the substrate.

    Notes: The following chart indicates the rate of curing for Gunther extra/build.
    Approximate Percent of Maximum Strength:
    @ 24 hours - 25%
    @ 3 days - 50%
    @ 7 days - 75%
    @ 30 days - 100%

    ■ Curing time will depend on temperature and the amount of air to reach Gunther extra/build. A 4-inch spot will cure faster than a 6-inch spot.
    ■ Mounting Time - Mirrors can be mounted up to 20 minutes after application of Gunther extra/build.
    ■ Adjusting Time - Gunther extra/build can be adjusted for a period of 24 hours after installation, to ensure proper mirror alignment.

    *For best application results, apply Gunther extra/build in 4" diameter patties for every square foot. Not for exterior applications.

    Gunther Prime and Seal provides a solid basis for better adhesion and protects against etching on the back of the mirror after it's cut.

  • *NOT for outdoor use.
  • *DO NOT use on acrylic mirrors.
  • *DO NOT apply to wallpaper or apply directly to Safety films made of vinyl and not on acrylic mirrors or treated wood.
  • For more details or information, visit the data sheets.

    Keep away from heat, sparks and flame. Vapors may ignite explosively. No smoking. Delete all flames, burners or ovens. Turn off heating and lights are off, and disconnect all electrical motors and appliances before use disappeared until all vapors. Prevent formation of vapor present in the open all the windows and doors. The central nervous system may be affected, as the fumes can cause dizziness, headaches and nausea. Direct contact of the skin, eyes or clothing should be avoided. Avoid breathing vapors. Repeated or prolonged inhalation can cause brain damage, nervous system, liver or the kidneys can be attacked, as it can lead to heart rhythm disturbances. ABUSE AND INHALATION OF THE INGREDIENTS MAY RESULT IN SERIOUS INJURY.

    CRL, Gunther Mirror Mastics, the manufacturer or Royal Adhesives and Sealants LLC., shall not be liable for consequential damages for use of Gunther products. Damages incurred in connection with the use of Gunther products by the buyer, seller, user or any other person are strictly limited to the purchase price of the goods purchased, the customer takes full responsibility. All installation guidelines must be met. For installation instructions please refer to the installer.

    CRL gives no warranty, express or implied on any mirror mastic. It is the user's responsibility to determine the mastic's suitability to different types of mirror backing and each specific installation.


  • Most shipping weights are approximate and have not been verified. If the exact weight is needed in order to determine shipping costs, and shipping costs are required in order for you to complete your order, please request this prior to submitting your order by contacting CRL Customer Service. Product images shown are of the actual product or a close representation. ColorsColours can vary depending on your computer's video card and on how your monitor's colorcolour is adjusted.