chemical resistant flooring guide
TRANSCRIPT
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CHEMICAL RESISTANT FLOORING GUIDE
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Resin floors have been used for many decades to provide chemically resistant protective coatings,
generally for concrete bases but also for metal or other structures.
CHEMICAL RESISTANCE OVERVIEW
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The range of aggressive materials may range from
cleaning or sterilizing preparations,
to oils and fuels, to food products or derivatives,
to natural or synthetic fats and oils, to highly
aggressive acids, alkalis and solvents
CHEMICAL RESISTANCE OVERVIEW
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The function of the flooring may be to
protect the concrete against direct surface
erosion
or to prevent attack on the reinforcement
with consequent loss of structural
integrity.
CHEMICAL RESISTANCE OVERVIEW
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No one product will be resistant to all the possible contaminants encountered.
CHEMICAL RESISTANCE OVERVIEW
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Different resin types will be resistant to different
classes of chemical
and consequently the flooring has to be selected that is
appropriate for the specific working
conditions
CHEMICAL RESISTANCE OVERVIEW
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Factors that will affect to attack by chemical agents:
The resin / polymer basis of the flooring
FACTORS
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The degree of cure of the floor system prior to chemical attack
FACTORS
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The thickness of the flooring
FACTORS
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The type and reactivity of the chemical agent
FACTORS
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The physical properties and concentration of the chemical agent
FACTORS
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Temperature
FACTORS
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Acidity / alkalinity / solvency / compatibility
FACTORS
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In the broadest terms the attack of a resin floor surface must be considered
to be the breaking down of the polymer structure such that it is
unable to fulfill its function.
WHAT IS CHEMICAL ATTACK?
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This may become evident as erosion of the surface, softening
or embrittlement leading to early wear, blistering or delamination.
WHAT IS CHEMICAL ATTACK?
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Secondary effects such as a superficial stain, the progressive yellowing of the
base resin or the discoloration of a pigment.
WHAT IS CHEMICAL ATTACK?
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This is primarily a physical process giving rise to swelling of the surface and disruption of the bond structure
Solvent attack:
METHOD OF ATTACK
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Breakdown of the resin polymer by chemical reaction, leading to a weakening
of the surface.
Chemical attack by acid or alkali:
METHOD OF ATTACK
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Certain resin polymers are more resistant to attack by
chemicals than others
RESISTANCE OF THE BINDER TO CHEMICAL ATTACK
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The higher the resin content and the
cross linked density of the system,
The better the chemical resistance
will be.
RESISTANCE OF THE BINDER TO CHEMICAL ATTACK
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The premature exposure of a floor to certain materials
may result in the permanent damaging of the floor and long term performance.
RESISTANCE OF THE BINDER TO CHEMICAL ATTACK
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It is important to assess the level of exposure of a floor to spillages
of chemicals.
LEVEL OF EXPOSURE AND HOUSE KEEPING
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