SpECbuild SC is designed to improve the
smoothness and regularity of concrete and
masonry surfaces as in the following situations:
· Reinstating concrete surface defects such as
blowholes.
· To provide a uniform surface over repaired
surfaces.
· Correcting errors with respect to line and level.
· Pre-bagged to ensure constant high quality.
· Easy to use. Needs only the addition of clean
water
· No need for a primer or a curing agent in
normal conditions.
· Excellent adhesion to concrete.
· Resistant to shrinkage cracking.
· Free from chloride additives.
Preparation
It is essential that adequate preparation is carried
out prior to the application of SpECbuild SC. Grit
blasting is recommended to ensure the removal of
all laitance, grease and oil. The resulting surface
should be dust free.
Prior to the application of the product the prepared
substrate should be thoroughly soaked with clean
water. When application commences the substrate
should be saturated without standing water on the
surface.
Mixing
SpECbuild SC is a one-part cementitious mortar.
6.5 to 7.0 litres of water is required for each 25kg
bag of SpECbuild SC.
The product should be
mixed in a forced action
mixer or in an appropriate
sized metal or plastic drum
using a slow speed drill and
a spiral paddle. The water
should always be placed
into the mixing vessel
before the addition of the SpECbuild SC.
The entire contents of the bag of SpECbuild
SC should be emptied into the vessel whilst mixing
is in progress. Mixing should continue for 3 to 5
minutes until a uniform, lump free consistency is
produced.
Application
SpECbuild SC may be applied in one layer as a thin
section render up to 3mm thick. The product may
also be used for filling blow holes up to 10mm deep.
The material must not be over worked and should
be left to partially set before final finishing. This
finishing may be improved by flicking on a very
small amount of water prior to troweling.
Curing
SpECbuild SC is resistant to shrinkage cracking
however the material should be protected from
extreme conditions such as hot winds or freezing
conditions. SpECcure AC or SpECcure WE may
be sprayed on to reduce the rapid drying out of the
surface. In cold conditions the material should
be protected from freezing.
A single 25kg bag of SpECbuild SC will provide
approximately 12.5 litres (0.0125m³) of mixed
material.
At 3mm thick a 25kg bag will provide sufficient
mixed material for 4.2m².
Contact us for more info.
