redirdamon t1_j2f0k68 wrote
The manufacturer says:
Ensure all surfaces are clean, dry, and free from any previous finish. Sand the substrate with a fine 150 grade sanding paper or 150 grit sanding disk, removing all traces of dust.
They know their product - not sure why you'd do anything but what they recommend.
DisscoStu OP t1_j2fakrd wrote
Don't plan to, just wanted to ask the question to people who may have tried
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