Removing Rust or Starting from Scratch
- Sand with 500 grit and scuff until you have removed everything (paint/rust)
- The primer is thick enough to fill in the harsh lines left behind
- Primed Surface: Wet sand with 500 grit or 1,500 grit to get rid of any imperfections so the base coat will apply evenly. If you use a 500 grit you will need to finish with a 1,500 grit so the lines will not be noticeable through the base coats
- Note: If you sand through the primer you will need to reprime and repeat the process so sand cautiously. Use a tack cloth to remove the particles left behind
- Sanding the Base/ Mid: This is not necessary unless you have runs, splatter, or uneven coats. You may dry sand with 1,500 but keep in mind you will need to reapply another coat afterward.
* If your paint is waterborne water will act as a solvent and dissolve the paint.*
Smoothing Out Jagged Edges:
- Start off with 500 grit to remove the roughness, then finish off with 1,500 grit sand paper for a smooth finish, the paint will then blend much better
- Waterborne Paint: Wet sand with 500 - 1,500 grit, water acts as a solvent and will eat through the paint
- Urethane Paint (Includes Clear Coat & Primer): Dry sand with 500 grit, then finish with a 1,500 grit so the lines will not be noticeable when the next coats are applied
Evening Out Protruding Paint:
- Waterborne Paint: Dry sand with 1,500 grit lightly, too much pressure can eat through the paint. (Tip: if the paint is too thick you may thin it out with distilled water, be cautious not to over thin the paint)
- Urethane: Wet sand with 800- 1,500 grit
- Clear Coat: Wet sand with 1,500 - 2,000 grit (Wait at least 24 hours so the clear coat cures before sanding)
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