Installation Guide

This guide was created to provide installation guidance
on how to properly install sealant. The goal is to
minimize sealant installation failures due to incorrect
joint design and sealant selection. It is as important
to correctly design the joint to maximize performance
as it is to install the sealant properly.
INSTALLATION GUIDE
SEALANT
STEP ONE:
ANALYZE JOINT MOVEMENT
Allowing for joint movement is necessary, because all
substrates will move due to temperature expansion and
contraction. Joint movement measurement is critical to
determine the type of sealant to use, or if the sealant is
capable of performing as expected.
Depth =
1/2 width
Low area
of stress
Backer rod
(25% wider than gap)
Large area of
adhesion
*Minimum width
and depth = 1/4”
Maximum
depth = 1/2”
AVOID THREE-SIDED ADHESION
IDEAL SEALANT BEAD
SHOULD NOT HAVE AIR POCKETS

Summary of content (6 pages)