Thread: When to add filler?
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Old 04-12-2015, 12:34 PM
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Quote:
Originally Posted by mitch_04 View Post
I use a lot of SPI products and they recommend filler on top of epoxy for best adhesion.
You are not suppose to treat the metal before using SPI products, per the instructions and a you tube video test I have seen with SPI products, it can inhibit adhesion when using acid etches before SPI
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