Gunther Extra/Build Mirror Mastic 1 Gallon Can

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H.B. Fuller HB-13102-112A Gunther Extra/Build Mirror Mastic 1 Gallon Can

Item #: HB-13102-112A by H.B. Fuller

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In Stock $67.83 /each


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30 Days Easy Return. We are the largest supplier of the most adaptable, personalized hardware in the industry. We work hard to ensure you're satisfied with our products.

  • Easy working consistency
  • Builds up to 2-1/2" and fills gaps
  • Strong permanent hold
  • Adjustable


8.95 lbs.

Max Strength In 24 Hrs.


Max Strength In 30 Days



1 Gallon Can

Our Extra/Build mirror mastic is ideal for large mirrored walls and uneven surfaces. It will build out to 2-1/2" without sagging, and is specially formulated to contain antioxidants (which prevent chemical breakdown and will not become brittle with age.) It’s available in tubes and one-Gallon cans.
Other features:
Extra/Build used for can be used for leed credits can be used on painted glass and mirror overlays ideal for professional use no odor for remodel applications only mastic for acrylic mirror application
Polymer/Polymer-modified cement mortar
We are committed to developing the highest quality mirror installation and maintenance products to meet our customers’ needs for safety and durability, from preparation of substrates to mirror maintenance. We have a proven track record after many years of laboratory testing and field use