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when i use epoxy or etching primers i tend to use the RM line more than the glasurit line . the biggest reason is cost . it's the same product but about 10% less cost the same goes for the reducers . it's the same product just cost less .
i tend to use more of the EP series than the DE series and always the chromated ones .
the white has no chromates in it . i like the chromates because they are always etching the metals under the primer do to the zinc base in the primers .
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