Expansion Joints and Pre-Compressed Sealants
COLORSEAL Headlines in Expansion
Joints at Living Arts Performance Center (Retrofit--2000)
(Click to enlarge)
Mississauga, Ontario: Completed in 1998, the
Living Arts Performance Center has hosted many of the
performing worlds hottest acts.
The performance of its opening sealant act, on the other hand, was far from
20 mm ( 3/4-inch) expansion joints in the
facade panels as well as 50mm (2-inch) joints in masonry were originally sealed
with liquid-sealant and backer rod.
This solution to waterproofing the
joints proved quickly to be ineffective as adhesive failures developed
in the sealant.
Starting with the larger joints first,
a remedy was found in a hybrid sealant. The combination of
factory-applied, low-modulus silicone to a backing of
acrylic-impregnated, self-expanding, foam sealant is the basis of
SEISMIC COLORSEAL, and
HORIZONTAL COLORSEAL materials.
Unlike field-applied liquid sealants, these hybrids feature a bellows of
silicone sealant that is virtually free of tensile stresses--either in
the sealant itself or at the bondline. This means that as the
joint-gap opens and closes, the bellows simply folds and unfolds and
long-term watertight performance is assured.