ANTI-STATIC EPOXY FLOORING
Anti-static epoxy flooring is preferred over other flooring methods when
it is required to provide a floor having joint-free finishes along with high
chemical resistance and decorative properties. Anti-static epoxy flooring is
mostly used in electronic and telecommunication industries, automotive
industries, pharmaceutical factories, aerospace industries, operation theatres,
computer rooms etc.
In order to prepare a high performing coat, good substrate preparation
is pivotal. The surface of the concrete over which the coat has to be laid must
be hard, sound and free of dust and other barrier materials such as paint,
lime, coatings, plaster, curing agents, laitance and other adhesive residues.
Anti-Static
Epoxy Flooring Method
Preliminary
preparation for Anti-Static Epoxy Flooring
A suitable degreaser is firstly used to remove polish, wax,
grease, oil and similar contaminating substances prior to mechanical
preparation. Contaminated concrete surfaces are mechanically prepared, either
by scabbling, scarifying, grinding or shot blasting equipment, and be suitably
prepared down to sound, solid concrete by mechanical methods. Traces of dust
and debris are removed using vacuum equipment.
Methods of Applications of Anti-Static Epoxy Flooring
1) Surface preparation
All Substrates should be
dry (max. 5% moisture content), clean, sound and free of laitance. Surface
grinders and shot blasting are used to prepare the surface; the surface should
be properly cleaned and should be free from dust prior to application of
primer.
2) Priming
It is imperative that
the Primer-contents are thoroughly premixed prior to mixing together. The
contents are mixed slowly using a slow speed drill and paddle for at least 4
minutes. Primer is then applied on the dry concrete surface @ 0.2 to 0.25Kg/per
square meter by Brush/Roller.
3) Laying of copper Tape
A copper strip of
required width and thickness is laid. The butter paper is firstly removed and
the adhesive side of the copper strip is kept exposed. Stick the self-adhesive
copper strip on to the clean primed substrate at a distance of 1 to 4 meter to
each other, lengthwise and breadth wise.
At the periphery, near to the walls, stick the self-adhesive copper
strip at a distance of 6 inches from the walls. At any one end in the room,
copper strip should be extended out for connection of earthing.
4) Base Coat
It is a three component
self leveling system which is natural black in color. Base coat should be
applied after drying of the Primer (usually after 6 – 8 hrs. from application
of primer).
5) Topcoat
Top Coat is a three
component self leveling system. There is a wide range of colors available for
that and Technical department should be contacted for choosing the best suited
color for a particular surrounding. Top coat is applied just after the drying of
base coat. A gap of at least 12 hrs should be maintained for application of
topcoat.
Roughening the surface
of dried base coat by using emery paper is recommended for better bonding of
the topcoat with the base coat. Before application of top coat the surface
should be cleaned and ensure that the surface is free from dust particles.
Mixing and application
methodology for top coat and base coat remains common as equal to a normal
self-leveling system.
Comments