Answers tagged "pressure"

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Use this when uneven pressure may be causing marks or inconsistent cut.

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320 grit does not remove 180 grit scratches

Scratches from 180 grit remain after sanding with 320 grit.

Use 220 or 240 before returning to 320.Dry for normal prep work.

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Can I sand a fiberglass tub?

Fiberglass tubs can become dull, scratched, or damaged if sanded too aggressively.

For small surface marks, test 1000, 1500, then 2000 wet in a hidden area.Wet.

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Can I sand a mirror edge?

Mirror edges can chip or lose backing if sanded carelessly.

For exposed glass edges only, use 600, 800, and 1000 wet with very light pressure.Wet on the glass edge only; keep water away from vulnerable backing.

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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 cork?

Cork can tear, crumble, or become uneven when sanded aggressively.

Use 320 or 400 only for very light smoothing. Avoid coarse grits.Dry.

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Can I sand laminate floor scratches?

Laminate flooring can lose its printed wear layer if sanded.

Avoid sanding laminate floors. For tiny repair prep only, test 600 or finer in a hidden spot.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 I sand rust off brake rotors?

Brake rotor sanding can affect braking surfaces if done incorrectly.

For light surface rust only, use 400 or 600 lightly on non-critical cleanup areas.Dry.

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Can I sand scratches on a plastic kayak?

Plastic kayaks can fuzz, smear, or lose texture if sanded aggressively.

Use 220 or 320 for rough gouge edges, then 400 or 600 for smoother blending.Wet for finer stages.

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Can I sand Venetian plaster?

Venetian plaster can lose sheen or show dull spots if sanded too aggressively.

Avoid coarse sanding. For small corrections, test 600 or finer very lightly.Dry unless the finish maker specifies otherwise.

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Can I sand vinyl?

Vinyl can scratch, smear, or lose texture when sanded.

Avoid sanding finished vinyl. For repair prep only, test 400 or finer with light pressure.Dry.

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Can I sand wicker furniture?

Wicker can fray, flatten, or break when sanded too aggressively.

Use 220 or 320 very lightly only on rough spots before painting.Dry.

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Can I use sandpaper on concrete?

Small concrete spots or edges need smoothing by hand.

Use 60, 80, or 120 for small concrete touch-ups. Use finer grits only after the high spots are removed.Dry; use dust control and protection.

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Can I use this sandpaper on glass?

The user wants to know whether the sandpaper is suitable for glass work.

Use ultra-fine wet sanding only: 1000, 1500, 2000, then 3000.Wet for glass-related fine work.

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Can sandpaper smooth tile edges?

Cut tile edges can feel sharp or slightly rough.

Use 220 or 320 for rough ceramic edges, then 400 or 600 for smoother edges.Wet.

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Deep scratches remain after 80 grit

80 grit removed material but left deep sanding scratches.

Step through 120, 180, then 220 or 320.Dry for early removal and general prep.

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Do I need a sanding block?

Hand sanding leaves waves, finger marks, or uneven pressure marks.

Use the same grit sequence, but wrap the sheet around a flat block for flat areas.Dry or wet depending on the sanding stage.

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Drywall paper fuzz appears after sanding

The drywall paper becomes fuzzy or damaged after sanding.

Use 180 or 220 lightly for final smoothing.Dry.

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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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Finger marks appear after sanding

Narrow lines or uneven areas match finger pressure after sanding.

Use the same grit to even the area, then continue finer.Dry for prep; wet for fine finishing stages.

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Hand sanding leaves finger grooves

Hand sanding leaves grooves or uneven pressure marks.

Use 180 or 220 to level light grooves, then refine with 320 and 400. Use 120 only for deeper grooves.Use dry sanding for most leveling. Use wet sanding on water-safe surfaces during finer refinement.

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How do I avoid scratches from sandpaper?

The user wants to prevent sanding scratches.

Start with the least aggressive grit that works and move finer in steps.Dry for shaping and prep; wet for fine finishing stages.

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How to avoid sanding through veneer

Thin veneer can sand through quickly and expose the layer underneath.

Use 220 for light prep. Use 320 for gentle scuff sanding on already smooth veneer.Dry.

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How to sand corners by hand

Corners and tight spaces are hard to sand evenly with a full sheet.

Use the same grit as the surrounding step, folded cleanly or wrapped around a small flat edge.Dry for most corner sanding; wet only for fine finishing stages.

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How to sand rounded edges without flattening them

Rounded edges become flat, sharp, or uneven after sanding.

Use 180 or 220 for shaping touch-up, then 320 for smoother prep.Dry for wood and general prep.

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How to sand small parts by hand

Small parts are hard to hold and can get rounded or uneven while sanding.

Use the grit required by the material, then step finer gradually.Dry or wet depending on material and finish stage.

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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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Plastic melts or smears while sanding

Plastic gets gummy, smeared, or soft during sanding.

Use 320 or 400 for prep, then 600 and finer with light pressure.Wet for fine stages to control heat and residue.

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Sandpaper curls during wet sanding

The sheet curls or becomes harder to handle during wet sanding.

Use the selected wet-sanding grit and support the sheet with a backing pad.Wet.

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Sandpaper stops cutting fast

The sheet stops removing material even though sanding continues.

Keep the same grit, clean the surface, and switch to a fresh sheet when cutting slows.Dry for normal prep; wet for fine wet-sanding stages.

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Sandpaper tears from folding

The sandpaper tears where it is folded.

The grit is not the main issue. Use the grit required for the job, but handle the sheet without hard creases.Use the sheet wet or dry as needed, but avoid folding wet sheets sharply because wet backing can tear more easily.

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Sandpaper tears from heavy pressure

The sandpaper tears early when too much pressure is used.

Use the correct grit for the cut needed. Move coarser for removal, then refine with the next finer grits.Use wet or dry based on the surface, but keep pressure light in both methods.

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Sandpaper tears on sharp edges

The sandpaper tears when sanding a sharp edge or corner.

Use 120 or 180 to break a sharp edge, then refine with 220 and 320 when a smoother edge is needed.Use dry sanding for most edge shaping. Use wet sanding only when the material is water-safe and the sheet is supported.

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Sheet tears while sanding

The sandpaper sheet tears during use.

Use the grit required for the task and reduce pressure or use backing support.Dry for normal prep; wet for fine wet-sanding stages.

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Skipped from 120 grit to 320 grit

Deep 120 grit scratches are still visible after switching to 320 grit.

After 120 grit, refine with 150 or 180, then 220, then 320.Use dry sanding for normal refinement. Use wet sanding only when the surface is water-safe and the grit stage is appropriate.

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Swirl marks appear after hand sanding

Circular or random sanding marks show on the surface.

Return to the previous effective grit, then refine with the next finer grit.Dry for prep; wet for fine finishing stages.

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