Answers tagged "between coats"

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Use this when sanding between coating layers.

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2000 grit does not make the surface shiny

The surface looks smooth after 2000 grit but still looks dull or hazy.

Use 1500, 2000, then 3000 before polishing. After 3000, use the correct polish for the material.Wet for clear coat, plastic, resin, and similar fine finishing work.

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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 a surface be too smooth for paint?

The user is worried that very fine sanding may reduce paint adhesion.

Use 180 to 320 for most paint prep unless the coating maker specifies another grit.Dry for most prep unless coating instructions say otherwise.

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Can I sand a popcorn ceiling?

Sanding popcorn ceiling texture can create heavy dust and uneven texture damage.

Avoid sanding large areas. For tiny touch-ups, use 220 lightly only after confirming it is safe to sand.Dry, with dust control.

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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 saw blade?

Sanding a saw blade can damage teeth or change cutting performance if done incorrectly.

Avoid sanding the teeth. For light surface rust on the blade body, use 400 or 600 gently.Dry.

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Can I sand brick before painting?

Brick can shed dust or become uneven if sanded aggressively.

Use 80 or 120 only on small rough paint edges or loose old coating, then clean thoroughly.Dry with dust control.

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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 carbon fiber?

Carbon fiber sanding can create harmful dust and can damage the weave or clear coat.

For clear coat only, use 1000, 1500, 2000, then 3000 wet before polishing.Wet for clear coat finishing to reduce dust.

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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 vinyl plastic?

Vinyl plastic can become scratched, fuzzy, or damaged when sanded aggressively.

Use 600 or finer only for very light scuffing on hard vinyl surfaces. Avoid sanding soft flexible vinyl.Dry for light scuffing; wet only on hard surfaces where residue can be controlled.

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Can I sand zinc-plated hardware?

Sanding zinc-plated hardware can remove the protective plating.

Use 400 or 600 only for light scuffing before paint.Dry.

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Can sanding fix paint lap marks?

Paint lap marks can remain visible after the coat dries.

Use 400 or 600 to feather raised lap edges before repainting.Dry.

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Can this sandpaper be used wet and dry?

The user wants to know whether the sandpaper can be used wet or dry.

Use coarse and medium grits dry for shaping; use fine and ultra-fine grits wet for suitable finishing work.Wet or dry use.

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Choosing a starting grit

It is unclear which grit to start with.

Use 60–120 for heavy removal, 150–240 for normal prep, 280–400 for fine prep, and 600–3000 for fine wet sanding or finishing stages.Use dry sanding for removal and normal prep. Use wet sanding for finer stages when the surface can safely be rinsed.

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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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Clear coat looks cloudy after sanding

Clear coat looks cloudy or dull after wet sanding.

Refine with 1500, 2000, then 3000.Wet.

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Deep lines remain on clear coat

Fine sanding leaves some deeper lines in clear coat.

Wet sand through 1000, 1500, 2000, and 3000. Use 800 only to correct deeper lines.Wet.

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Dry sanding clear coat leaves scratches

Clear coat shows visible scratches after dry sanding.

Use clean wet sanding with 1000, 1500, 2000, and 3000 for clear coat refinement.Wet.

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Dust nibs show in the finish

Small bumps or dust nibs appear in a painted or clear finish.

Use 400 or 600 lightly between coats where the coating instructions allow.Dry or wet depending on coating instructions.

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Edges sand through too fast

Edges, corners, or raised areas lose coating faster than the rest of the surface.

Use finer grit and lighter pressure near edges.Dry for prep; wet for fine finishing stages.

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Finish smears while sanding

The finish gums up instead of sanding to powder.

Use fine prep grits such as 320 to 600 after the finish is ready.Light dry sanding or wet sanding where the finish and stage allow.

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Guide coat still visible after sanding

Guide coat remains in low spots after sanding primer.

Continue leveling with 320 or 400, then refine with 600 after the surface is even.Dry.

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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 sand polyurethane drips

Polyurethane drips or runs leave raised marks in the finish.

Use 320 or 400 after the drip is fully cured. Use 600 for finer blending before another coat.Dry for most polyurethane correction; wet only if the finish instructions allow it.

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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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Is haze normal after wet sanding?

The surface looks hazy or dull after wet sanding.

Use 1500, 2000, and 3000 to refine normal wet-sanding haze.Wet.

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Latex paint feels rough after drying

Latex paint can dry with a rough or gritty feel.

Use 400 for light smoothing. Use 320 first only when the roughness is more noticeable.Dry.

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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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Paint fisheyes after sanding

Paint forms small crater-like spots after sanding and repainting.

Clean contamination first, then prep with 220, 320, or 400 based on the coating stage.Dry for most prep after cleaning.

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Paint peels after sanding and repainting

New paint peels or lifts after sanding and repainting.

Use 180 to 220 for general prep and follow coating instructions.Dry for most repaint prep.

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Painted trim feels rough between coats

Painted trim can feel gritty or rough after the first coat dries.

Use 320 for normal smoothing, or 400 for finer trim paint prep.Dry.

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Raised grain after water-based finish

Wood can feel rough after applying a water-based finish.

Use 320 or 400 lightly after the first coat dries.Dry.

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Sanding scratches show through paint

Paint dries and reveals sanding scratches underneath.

Use 320 or 400 before primer or paint. Use 600 for finer topcoat prep.Dry for normal prep.

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Sandpaper leaves dark residue

Dark residue appears while sanding.

Use the grit required for the task, then clean before changing grits.Dry for normal prep; wet for fine wet-sanding stages.

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Should I sand between oil finish coats?

Oil finish can feel rough or collect dust between coats.

Use 320 or 400 lightly only after the coat is dry.Dry.

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