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Paint
Additives |
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Characteristics |
Caution |
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Metroark PA-51 is designed to
eliminate pigment separation
problems like floating, flooding
and silking. It is a valuable
additive for the paint
formulator for maintaining
uniform pigment dispersion at
concentrations as low as 0.05%.
The paint additive lowers the
surface tension of the paint
solvents and presumably coats
the individual pigment particles
to prevent them from coalescing.
The additive prevents one
pigment of a multi-pigment
system from agglomerating in
masses or floating to the
surface of the paint film. |
Metroark PA-51 is supplied in a
flammable solvent. Following
precautions should be observed
while working with this
material.
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Keep away from
heat or open
flame
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Use only with
adequate
ventilation
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Avoid prolonged
breathing vapour
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Avoid prolonged
or repeated skin
contact
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Typical Properties |
Packing |
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Colour |
Colourless, clear |
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Specific gravity at
25ºC |
0.870 |
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Viscosity at 77ºF,
ctsk |
0.78 |
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Flash point’ ºF |
43 |
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Suitable Diluents |
Aromatics such as
Xylene, toluene;
mineral spirits;
ketones |
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Metroark PA-51 is available in 4
& 18 kg Steel Drum. |
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How to use |
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Amount Needed
The amount of additive required
depends upon the type of paint
and the amount of pigments
floating. In most cases, 0.05 %
is sufficient. Severe flotation
problems, however,, may
necessitate larger amount. Avoid
using more than 0.1% of the
additive if recoatability is to
be assured. |
Blending the Additive
Metroark PA-51 is usually added
during the final thinning and
colour-matching step. It is best
to blend the additive after the
paint has been removed from
processing equipment – residual
additive remaining in such
equipment may affect subsequent
batches of paint. |
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