|
| |
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Separation
of Liquid
(Partial
precipitation out of solution of the coating)
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| |
CAUSE
|
REMEDY |
| A |
Wrong
solvent used.
|
If
the separation is slight, addition of the proper solvent, along with
constant agitation, may have a positive result. |
| B |
Material
subjected to unusual conditions of heat or cold. |
Keep
material at a temperature of 70" F to 75" F. If separation
occurs because of extreme heat or extreme cold, the treatment is similar
to correction E. |
| C |
Over
reduction.
|
Follow
directions for proper reduction. If material is already over reduced,
addition of fresh material will often bring the production batch back to
the proper state. |
| D |
Reducer
added too quickly without sufficient stirring. |
Add
reducer slowly, stirring constantly. |
| E |
Natural
evaporation of solvent if material allowed to remain open to the air
over a period of time. |
If
oxidation has not proceeded too far, addition of proper amounts of
solvent, plus addition of fresh material will restore the condition of
the batch. |
|
Note:
If the separation is too pronounced, it may not be possible to put
the material back into condition satisfactorily for use. |
|
