Answers tagged "polishing prep"

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Use this when preparing a surface for polish after sanding.

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Cabinet door edges sand through too fast

Cabinet door edges lose finish or expose bare spots faster than flat areas.

Use 220 for edge scuffing and 320 for light between-coat sanding.Dry.

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Can I sand a granite countertop?

Granite countertop sanding can leave dull spots or uneven polish.

Avoid sanding polished granite. For minor test work, use only 2000 or 3000 wet in a hidden area.Wet only for very fine test work.

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Can I sand a plastic storage bin?

Plastic storage bins can scratch, whiten, or smear when sanded.

For paint prep, use 320 or 400 lightly, then 600 for smoother visible areas.Dry.

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Can I sand a porcelain tub?

Porcelain tub surfaces can be permanently scratched by regular sandpaper.

Do not use standard sandpaper for normal porcelain tub cleaning or shine restoration.Wet sanding should only be used as part of a specific refinishing system.

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Can I sand a quartz countertop?

Quartz countertop scratches or dull spots can get worse with normal sandpaper.

Do not start with coarse grit. For minor test areas only, use 2000 or 3000 wet and polish afterward.Wet only for very fine test work.

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Can I sand a stucco patch?

Stucco patch can look too rough, too smooth, or mismatched after sanding.

Use 60 or 80 only for high spots, then 120 for light blending.Dry, with dust control.

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Can I sand an acrylic tub?

Acrylic tubs can turn dull or scratched if sanded with coarse grit.

Use 1000, 1500, 2000, and 3000 only for light scratches before polishing.Wet.

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Can I sand carbon fiber clear coat?

Carbon fiber parts can be damaged if sanding cuts through the clear coat.

Use 1000, 1500, 2000, and 3000 only on the clear coat before polishing.Wet.

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Can I sand foam?

Foam can tear, crumble, or clog sandpaper when sanded aggressively.

Use 220 or 320 for shaping firm foam, then 400 for light smoothing.Dry.

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Can I sand granite?

Granite can show dull spots or visible scratches after sanding.

Avoid sanding polished granite for cleaning. For small repair testing, use 1000 or finer wet.Wet.

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Can I sand laminate countertops?

Laminate countertops can be permanently scratched or dulled by sanding.

Do not sand visible laminate countertop surfaces for scratch removal. Use only very light 320 or 400 scuffing when preparing for a compatible coating system.Dry for coating prep only.

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Can I sand laminate furniture before painting?

Paint may not grip laminate furniture if the glossy surface is not scuffed.

Use 220 or 320 to scuff laminate before primer.Dry.

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Can I sand rubber?

Rubber can smear, tear, or clog sandpaper during sanding.

Use 220 or 320 only for very light shaping. Replace paper when it loads.Dry.

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Can sandpaper remove porcelain tile scratches?

Porcelain tile can become dull or scratched if sanded incorrectly.

Avoid sanding polished porcelain. For minor edge work only, test 1000 or finer wet.Wet.

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Clear coat is hazy after 1000 grit

Clear coat looks dull or hazy after sanding with 1000 grit.

Refine 1000 grit marks with 1200, 1500, 2000, and 3000 before polishing.Use wet sanding with clean water and light pressure when the clear coat is fully cured and safe to wet sand.

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Coarse scratches show on wood

Wood still shows visible scratch lines after prep sanding.

Use 120 to remove heavy marks, then 180 and 220 for prep.Dry.

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Fine grit is being used for removal

Sanding takes too long because a fine grit is being used for material removal.

Use 80–120 for heavy removal, 150–180 for controlled removal, then refine with 220, 320, and 400 as needed.Use dry sanding for most removal work. Use wet sanding only when the surface and dust control needs make it appropriate.

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How do I remove gloss before repainting?

The painted surface is glossy and needs prep before repainting.

Use 220 for general scuffing; use 320 or 400 for finer prep.Dry for general prep.

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How to avoid sanding through clear coat edges

Clear coat can sand through quickly on edges, corners, and body lines.

Use 1500, 2000, or 3000 near edges. Avoid coarse grits on clear coat edges.Wet.

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How to use the 60 to 3000 grit kit

It is unclear how to use the full 60 to 3000 grit assortment.

Choose the range by task: 60–120 removal, 150–240 prep, 280–400 fine prep, 500–800 extra fine, and 1000–3000 wet sanding or polishing prep.Use dry sanding for removal and general prep. Use wet sanding for finer stages when the surface can safely be rinsed.

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Leveling orange peel in clear coat

Clear coat has orange peel texture that needs to be leveled.

Use 1000 or 1200 for normal orange peel leveling, then refine with 1500, 2000, and 3000.Use wet sanding on fully cured clear coat with clean water, light pressure, and frequent rinsing.

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Metal still feels rough

Metal still has roughness after sanding.

Start around 120 or 180 for roughness, then 220 and 320.Dry for initial prep; wet for finer stages.

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Plastic is hazy after wet sanding

Plastic looks cloudy or hazy after wet sanding.

Use 1000, 1500, 2000, and 3000 for haze refinement. Use 800 only when deeper marks remain.Use wet sanding with clean water on plastic when the item can safely be rinsed. Keep pressure light to reduce heat and gouging.

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Preparing wood before finish

Wood needs to be sanded before applying finish.

Use 150, 180, and 220 for most wood finish prep. Use 320 for finer prep when needed.Use dry sanding for normal wood finish prep. Keep bare wood dry unless intentionally raising the grain before final sanding.

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Rough spots remain after fine grit

Most of the surface feels smooth, but a few rough spots remain.

Return to the last grit that still cuts the rough spots, then step finer again.Dry for wood and general prep; wet for fine finishing stages.

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Scratches remain on metal after prep

Metal shows straight or uneven sanding scratches after prep.

Use 180, 220, 320, then 400 or 600 for finer prep.Dry for shaping; wet for 400 grit and finer finishing stages.

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Swirls remain after 1000 grit

Swirl marks are still visible after sanding with 1000 grit.

Use 800 only for deeper swirls, 1000 for normal leveling, then refine with 1200, 1500, 2000, and 3000.Use wet sanding on fully cured clear coat or water-safe surfaces, with clean water and light pressure.

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Using the assorted kit for polishing prep

It is unclear which assorted kit grits to use before polishing.

Use 1000 to start fine leveling, then refine with 1200, 1500, 2000, and 3000 before polishing.Use wet sanding for polishing prep when the coating or surface can safely be rinsed. Keep the surface and sheet clean.

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What does sandpaper grit number mean?

The grit number can be confusing when choosing sandpaper.

Use low grits for removal, medium grits for prep, and high grits for fine finishing.Applies to wet and dry sanding.

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What grit before garage floor epoxy?

Garage floor epoxy can peel if the concrete is too smooth or dusty.

Use 60 or 80 for rough mechanical scuffing, then clean thoroughly before coating.Dry, with dust control.

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What grit before sealing stone tile?

Stone tile can show sanding marks or uneven sealer absorption.

Use 600 or 800 lightly for fine prep on suitable stone, then clean fully before sealer.Wet for stone dust control and smoother finishing.

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What grit between epoxy floor coats?

A new epoxy floor coat may not bond well over a glossy cured coat.

Use 120 or 180 to scuff cured epoxy, then clean thoroughly before recoating.Dry with dust control.

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What grit between epoxy tabletop coats?

A second epoxy coat may not bond well over a cured glossy first coat.

Use 220 or 320 to scuff cured epoxy before the next coat.Dry.

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What grit fixes spray paint orange peel?

Spray paint can dry with a bumpy orange peel texture.

Use 1000 or 1500 for light orange peel, then 2000 and 3000 before polishing.Wet.

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What grit for a garden bench before staining?

Outdoor bench wood can be rough, gray, or uneven before stain.

Use 80 or 100 on rough weathered areas, then 120 or 150 before stain.Dry.

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What grit for acrylic bathtub scratches?

Acrylic bathtub scratches can look worse if sanding starts too coarse.

Use 800 or 1000 for light scratches, then 1500, 2000, and 3000 before polishing.Wet.

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