· For injecting into static cracks in concrete or
masonry, to form a permanent bond or seal.
· Low viscosity allows penetration into the finest
cracks
· Formulated for hot climates
· Suitable for structural repairs
· Excellent bond to concrete, brick and masonry
· Minimum creep under sustained load
· Resistant to wide range of chemicals
· Non-shrink, adheres with no loss of bond
Surface preparation
Clean the surface and remove any dust, unsound
or contaminated material, plaster, oil, paint, grease,
corrosion deposits or algae.
Oil and grease deposits should be removed by
steam cleaning, detergent scrubbing or the use of
a proprietary degreaser.
Blow the cracks and treated surface with oil free air
to ensure complete removal of all dust and loose
particles. Ensure that the surfaces are blown dry.
In the presence of running water, please refer to the
SpECinject PU injection resin system.
Fixing Injection Packers
The injection packers shall be inserted into
pre-drilled holes at intervals along the length of
each crack. The distance between each packer
shall be close enough to ensure that the resin will
penetrate along the crack to the next point of
injection.
The surface of the cracks between the packers
shall be sealed with a thick band of SpECcoat BC,
typically 50mm wide x 2mm thick. Cracks that go all
the way through a wall or slab must have packers
located on both sides with those at the back placed
at midway points between those at the front.
SpECcoat BC shall be allowed to cure for 8 hours
at 20°C but at lower temperatures, the curing time
will be extended and the applicator should ensure
that the surface sealant has adequately cured prior
to continuing. One end of the injection hose shall be
attached to the lowest packer on vertical cracks or
to either end of the horizontal cracks.
If alternative methods are proposed then please
contact SpEC Technical Department for their
comments.
Application
Thoroughly mix the entire hardener and base resin
contents until the liquid becomes clear.
SpECinject EP should be used with standard
injection equipment having closed containers. The
injection pressure should be at least 0.4 N/mm² (4
bar).
Only mix sufficient resin that can be used within
the pot life of the material.
Following completion of the injection works, the
injection system shall be allowed to cure for 24
hours and shall be left undisturbed for this time.
When using two-component injection machine,
mixing takes place in the injection machine.
SpECinject EP is supplied in 1.0 litre pack. Bulk
supply is also available on request.
SpECcoat BC is supplied in 3 and 5 kg packs
which yield around 1.7 and 3.0 litres respectively of
mixed product.
Contact us for more info.
