Traditional Mortar Style
Glass Block Installation System

For use with 3" and 4" thick glass blocks

Mortar Systems with Spacers:
Installing glass block products with mortar gives you great potential: curves, multi-story expanses, exterior and interior applications, shower enclosures and more. The details in the figures below show you two ways to complete the do it yourself installation with success.

Download detailed installation instructions (PDF)

Glass Block Mortar Installation Accessories


Qty (piece)
Glass Block Reinforcing Wire
Embed horizontally in the mortar joints between every other course.
Reinforcing Galvanized Wire
(4ft piece)
Glass Block Panel Anchors
Panel Anchors secure blocks into the surrounding framework.
Galvanized Panel Anchors
(24" x 2")
Glass Block Expansion Strips
Expansion Strips made of white polyethylene, are inserted at the head and/or jambs depending on the application. The strips replace mortar at these points to cushion the glass block and allow the panel to expand and contract freely.
Expansion Strips
  50ft Roll
4-1/4" x 3/8"
Glass Block Spacers Block Spacers are one-piece, all plastic spacers that speeds
construction, assures uniform placement and helps keep panel flush. Select either Premiere or Thinline based on your block size.
Premiere (4" Thick) Glass Block Spacers
(25 per bag)
Thinline (3" Thick) Glass Block Spacers
(25 per bag)
Asphault Emulsion (1 quart)  
Will complete approximately 25 - 30 blocks
Multi-Coat Premixed White Mortar
(50 lbs)
Pastry Bag 24"
(use to dispense mortar)
3" Wide x 48" Long White Vinyl Channel


4" Wide x 48" Long White Vinyl Channel


*April 2021 - Due to shipping irregularities please call us for a quote on your glass block needs.

Accent Building Products,
46 Gettysburg Street, P.O. Box 310 Arendtsville, Pa 17303,
Phone: 1-800-237-7470

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