Installation Guide
19
Do not nish the joints until sealant has cured for 24
hours.
Note: If you are installing blocks in a moist environment
or if your wall is not framed on all four sides, grout
nish is recommended.
A. Remove any sealant squeezed out from the joints
with a utility knife.
B. Open the sealant as instructed on the tube.
Coverage rate is one tube per 16 blocks. Do not
seal more joints than you can tool in 15 minutes.
C. Seal the horizontal joints rst by placing the
nozzle of the tube in the joint at the perimeter on a
45° angle. Pull the tube along the joint while laying
a bead of sealant. Slightly overll the joints.
20
D
C
D. Push the spoon shaped nishing tool over the
joints at a 45° angle to collect the excess sealant
and seal the joint. Periodically wipe the sealant
from the nishing tool.
E. Seal the vertical joints in the same manner.
Carefully work the joint intersections to create a
smooth nish.
F. Let the sealant cure for 48 hours before putting
any stress on the panel.
G. Seal the perimeter joints with sealant.
An important part of the functional beauty of
Pittsburgh Corning Glass Block products is that they
are virtually maintenance free! There’s nothing to rot,
rust, peel or paint. All that is needed is an occasional
wiping with a damp, soft cloth on interior panels or
a hosing on exterior panels. With minimal attention,
your Pittsburgh Corning Glass Block will remain
sparkling and beautiful for years!
We hope these instructions are clear and answer
your questions about the installation of Pittsburgh
Corning Premiere Series Glass Blocks and Finishing
Units with the ProVantage
®
Glass Block Installation
System. For additional information on Pittsburgh
Corning Glass Block visit our website at
or call