IL-259-B
2
2
2
2
2
Paint Formulation for REA, REM, and M90 Guns
Figure 1 will aid in selection of solvents that will
increase electrical resistance of the formulation.
ITW Ransburg’s Bulletin TL-00-02 "Solvent
Selection" covers solvent selection and recom-
mended electrical resistance ranges for ITW
Ransburg’s No. 2 Process rotary atomizers, both
automatic and manual equipment. These
recommendations have been misinterpreted by
many who are concerned with paint formulation for
REA and REM guns. Bulletin TL-00-02 DOES
NOT apply to this non-rotating equipment.
There are isolated cases where the use of a
certain conductive solvent actually improved the
performance of a given paint in REA and REM
guns; however, this improvement resulted from
decrease in viscosity and/or increase in flowability
and not because of decrease in resistance. It is
emphasized that this improvement was in spite of
decreased resistance and not because of it.
SOLVENTS LISTED IN ORDER OF INCREASING POLARITY*
SOLVENTS LISTED IN ORDER OF INCREASING POLARITY*
SOLVENTS LISTED IN ORDER OF INCREASING POLARITY*
SOLVENTS LISTED IN ORDER OF INCREASING POLARITY*
SOLVENTS LISTED IN ORDER OF INCREASING POLARITY*
(Below listed trade names are only indications of range. Equivalents may be used.)
Non and Low Polarity
Non and Low Polarity
Non and Low Polarity
Non and Low Polarity
Non and Low Polarity
Mineral Spirits
Textile Spirits
VM&P Naptha
High Flash Naptha
SC-100
SC-150
Heavy Aromatic Naptha-HAN
Xylol
Toluol
Trichlorethylene
Odorless Mineral Spirits
n-Butyl Acetate
Medium Polarity
Medium Polarity
Medium Polarity
Medium Polarity
Medium Polarity
Ethyl Acetate
Cyclohexanol (Hexalin)
Butyl Carbitol (Dowanol19)
Isophorone
High Polarity
High Polarity
High Polarity
High Polarity
High Polarity
Methyl Ethyl Ketone
Methyl Isobutyl Ketone
Acetone
Isopropyl Alcohol
Methyl Cellosolve (Dowanol-EM)
Diacetone Alcohol (Diacetone)
Ethyl Alcohol
Methyl Acetate (Metal-60)
*Users should be aware of solvent restriction imposed in some areas. See your solvent supplier for details.
Figure 1: Solvents Listed in Order of Increasing Polarity
Figure 1: Solvents Listed in Order of Increasing Polarity
Figure 1: Solvents Listed in Order of Increasing Polarity
Figure 1: Solvents Listed in Order of Increasing Polarity
Figure 1: Solvents Listed in Order of Increasing Polarity
If all other factors are held constant, the higher the
paint resistance, the higher will be the efficiency
when using the REA and REM guns. Therefore,
when using Ransburg Paint Tester with REA and
REM equipment, efforts to increase paint
resistance, while still maintaining the same quality
of atomization and flow, will yield maximum paint
transfer efficiency.
