SpECcoat Zn25 is recommended as a primer for
exposed reinforcement where a corrosion resistant
primer is specified. It is specifically developed for use
with SpECbuild cementitious repair mortars
· One part
· High metallic zinc content inhibits corrosion
· Compatible with SpECbuild cementitious
mortars
Preparation
It is essential that adequate preparation is carried
out prior to the application of SpECcoat Zn25. If it
is determined that chloride ingress was the cause of
the corrosion, the grit blasted area should be treated
by high pressure washing.
Any corroded reinforcing steel should be grit
blasted to bright metal, to remove all scale and
corrosion products. It is essential this treatment
continues over the rear of the reinforcing steel.
Application
It is essential that there is no delay in the
application of SpECcoat Zn25 once the steel
is dry. Delays greater than one hour should be
avoided.
Stir the contents of the tin to ensure that any
settlement is redispersed.
The product should be applied by brush ensuring
continuous coverage over the total surface area of
the exposed steel. It may be necessary to apply a
second coat if it is felt that some gaps may exist in
the first coat. In this case allow the first coat to dry
fully before application of the second coat.
(Refer to Technical Data).
Once the priming operation is complete and has fully
dried, it is essential that the repair mortar is applied
as soon as possible. In environments where high
temperature & high humidity prevail, this period
should not exceed three days.
1 litre, 2.5 litre and 5 litre tins.
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