For sealing and resealing high movement joints
in building and civil engineering structures and for
sealing joints in structures which are subject to high
rapid movements.
• Tough and resilient seal
• Provides permanent and uniform water tight seal
• Excellent adhesion to most surfaces
• Stays flexible – no brittle or cracking due to UV
exposure
• Gun grade for vertical and overhead applications
• Good chemical & weathering resistance
• Non-toxic once cured
• High resistance to ageing
Joint Preparation
The joint surface must be clean, dry and free from
oil, loose mortar, laitance, release agents and other
contaminants. A thorough wire brushing, grinding,
sand blasting or solvent cleaning may be required
to exposed clean, sound surface.
SpECseal Primer 25 for use on porous and nonporous surfaces.
SpECseal Primer 25 is a two component primer.
The base and hardener components should be
mixed together for 2 minutes to produce a uniform
consistency.
The primer should be applied to clean, dry surfaces
prior to the installation of backer rod or bond
breaker tape.
The freshly mixed SpECseal 625HD should be
applied after the primer is just touch dry. The
sealant should be applied between 30 – 180
minutes after priming.
If the primer is left to dry longer than 3 hours
the surfaces must be re-primed prior to applying
the sealant.
SpECcord or SpECcell Polyethylene should be
used to control the depth of the joint to the
recommended thickness. Where joint design or
depth of joint will not permit the use of backing
rod, use a bond breaker tape over the cut back
joint filler.
Mixing
SpECseal 625HD is the gun grade and is supplied
in 2.5 litre composite packs with the base and
curing agent placed in the tin ready for mixing.
The components should be
mixed for a minimum of 5
minutes to obtain a uni
form colour, free from
streaks. Keep scraping
the inner wall of the con
tainer with spatula to
avoid unmixed material
sticking on the wall. Mixing
should take place using a slow speed drill fitted
with a SpECseal paddle mixer.
We do not recommend part mixing.
Application
Soon after mixing, the SpECseal 625HD should
be loaded into a SpEC 600 ml solid barrel gun
using a steel follower plate.
SpECseal 625HD is supplied in 2.5 litre tins.
SpECseal Primer 25 is supplied in one litre 2 part
packs.
Contact us for more info.
