QA

What Sanding Grit To Use

180 to 220 Grit Sandpaper: Finer grit sandpaper is great for removing the scratches left by coarser grits on unfinished wood and for lightly sanding between coats of paint. 320 to 400 Grit Sandpaper: Very fine grit sandpaper is used for light sanding between coats of finish and to sand metal and other hard surfaces.

How do I know what grit sandpaper to use?

The lower the number, the coarser the grit; and the higher the number, the finer the sandpaper. Since coarse sandpaper leaves deeper scratches, start with the finest sandpaper that will tackle the project easily and work your way up to finer grits.

What is 120 grit sandpaper used for?

For heavy sanding and stripping, you need coarse sandpaper measuring 40- to 60-grit; for smoothing surfaces and removing small imperfections, choose 80- to 120-grit sandpaper. For finishing surfaces smoothly, use a super fine sandpaper with 360- to 600-grit.

What is 80 grit sandpaper used for?

40 – 80 Grit: Coarse. 40 to 80 grit is used for heavy or rough sanding and to help remove scratches or imperfections. While it is okay to be abrasive, take your time when using a low-grit sandpaper because it may show noticeable scratches or swirls in the wood.

Can you go from 60 grit to 120 grit?

Vacuum off the dust from the first sanding pass and move onto the next grit. This will be the next finer level of coarseness — 150 or 180 grit (if you started at 80 to 120 grit).Going Through the Grits. Grit Coarseness Level 40-60 Coarse 80-120 Medium 150-180 Fine 220-240 Very Fine.

How do you use 220 sandpaper grit?

#180–#220 Grit: Fine Seldom used on the first run-through, unless the surface is already smooth to the touch, fine-grit sandpaper in this range is typically for second or third sandings. Sometimes, fine-grit sandpaper is used to roughen glossy paint in preparation for applying another coat.

What does the grit number on sandpaper mean?

The grit of sandpapers is a rating of the size of abrasive materials on the sandpaper. The higher grit number is equivalent to a finer abrasive, which creates smoother surface finishes. Lower grit numbers represent coarser abrasives that scrape off materials much quicker.

Is 220 a fine for sandpaper?

Fine sandpapers range from 120- to 220-grit. Extra fine sandpaper is often used between coats of paint or varnish. Grits of 240, 320 and 400 are termed very fine, while extra- or superfine sheets with grits of up to 600 are best-suited for polishing jobs.

What is 320 sandpaper used for?

180 to 220 Grit Sandpaper: Finer grit sandpaper is great for removing the scratches left by coarser grits on unfinished wood and for lightly sanding between coats of paint. 320 to 400 Grit Sandpaper: Very fine grit sandpaper is used for light sanding between coats of finish and to sand metal and other hard surfaces.

What would you use 1000 grit sandpaper for?

800-1000 grit sandpaper is ultra fine. It’s used for final sanding and polishing of thick finishes.

What is the strongest grit sandpaper?

Choose the Right Grit Sandpapers are commonly graded as coarse (40 to 60 grit), Medium (80 to 120), Fine (150 to 180), Very Fine (220 to 240), Extra Fine (280 to 320) and Super Fine (360 and above).

Can I go from 40 grit to 80 grit?

For heavy sanding and stripping, you need coarse sandpaper measuring 40 to 60 grit; for smoothing surfaces and removing small imperfections, choose 80 to 120 grit sandpaper. For finishing surfaces smoothly, use extra fine sandpaper with 360 to 400grit.

Can you skip a grit when sanding?

The Golden Rule of Sanding The golden rule for choosing your sequence is to never skip more than 1 grit. For example, if you start with P80, and need to finish at P240, rather than using every grit from P80 – P220, you can do P80 – P120 – P180 – P240.

Can you go from 60 to 100-grit?

You need to progress through every grit to polish off the scratches left by the previous grit. On most jobs, the sequence is 24-36-60-80 for coarse-grain wood like oak. Scratches are more visible on fine-grain wood like birch or maple, so go to 100-grit.

Do I need to sand to 220?

Prepare the surface by using medium paper first, and then proceed to finer grades. On most raw woods, start sanding in the direction of the grain using a #120-150 grit paper before staining and work up to #220 grit paper. Do not over sand or you may seal the wood so much that it will not take a finish.

Do you have to sand to 220?

In general, there is no point in going below 220 grit on soft woods like pine or poplar. On hardwoods like birch, you can go to 320 before it disappears into the grain. On hardwoods like cherry or rock maple, you can take it down to 600 grit.

What is the fine for sanding wood before painting?

Let the primer dry completely, then sand it down before painting. Use very fine 220-grit sandpaper, and apply light pressure to prevent gouging the primer.

What size is 80 grit?

Microns to Grit Size Chart Grit Size Mesh USS Inches (Avg) #80 70 0.0065 #90 80 0.0057 #100 100 0.0048 #120 120 0.0040.

What grit is P100 sandpaper?

Sandpaper Grit Chart Average Micron Size (in inches) CAMI GRIT RANGE FEPA P GRADE 0.001045 – 0.00749 #60-#80 P60 – P80 0.00608 – 0.00363 #100–#150 P100 – P150 0.00304 – 0.00254 #180–#220 P180 – P220 0.0014 + #320 and up P400 and up.

What’s the smoothest sandpaper?

Garnet and Flint Sandpaper Garnet sandpaper features a soft grit and wears out the fastest but produces the smoothest surface. Garnet is the best sandpaper for wood hand-sanding.

What grit is P320 sandpaper?

Grit sizes ISO/FEPA Grit designation CAMI Grit designation Macrogrits Very Fine (sanding finishes between coats) P320 P360 Extra fine, start polishing of wood 320.