Very fine · Keying paint
Sandpaper P800
Keying paint. Matting top coat, sanding between clear coats.
Roughly equivalent to 500 Grit (US CAMI standard). Why the numbers differ
01 · Where it fits
Where P800 sits in the sequence
Before
Pre-sand with P600 – the jump to P800 is no more than double, so the scratches disappear.
Very fine range
P500–P1000: Matting top coat and clear coat, preparing plastics for painting, sanding between coats.
After
Carry on with P1000 until the surface is as fine as the next job needs.
All grits in the Very fine range
In the KORNDEX system:Paint preparation · Key paint & plastic P400–P1000
What P800 is used for
Car & paint
Keying paint
Plastic
Fine sanding without paint
02 · Buy
Products in P800
- Bestseller
- P240–P1500
- Grit
- 150 mm
- Diameter
- 10 pcs
- Contents
€1.59 / pc · incl. VAT, plus shipping
- Bestseller
- P400–P2000
- Grit
- 150 mm
- Diameter
- 10 pcs
- Contents
€1.49 / pc · incl. VAT, plus shipping
- P400–P2000
- Grit
- 230 × 280 mm
- Dimensions
- 25 pcs
- Contents
€0.80 / pc · incl. VAT, plus shipping
03 · Know-how
FAQs about P800
What is P800 sandpaper used for?
Keying paint: Matting top coat, sanding between clear coats. Typical for Car & paint, Plastic.
Is P800 coarse or fine?
P800 belongs to the very fine range (P500 to P1000): keying paint. The higher the number, the finer the grit.
Which grit comes after P800?
After P800 comes P1000. Never more than double the number per step – that way the finer grit removes the scratches of the coarser one.
Should P800 be used wet or dry?
On paint usually wet: from P800 the water cools, flushes away the swarf and makes the scratch pattern finer and more even. Use waterproof sheets or film discs for this – paper goes soft. P800 also works dry with dust extraction, but clogs faster.
Which grit comes before P800?
Before P800, sand with P600 (or finer). Jump straight to P800 from too coarse a grit and you won't get the scratches out.
Related guides
Plastic & resin
Restoring headlights: which grit?
Wet sand from P800 to P2000, then polish – and seal afterwards, or the lens will be cloudy again after one summer.
P800 → P1000 → P1500 → P2000
Read · 1 min
Plastic & resin
Sanding and polishing epoxy resin
River tables and castings: level coarse, then wet sand up to P2000 or P3000 and polish. Why the resin must be fully cured first.
P120 → P180 → P240 → P320 → P400 → P600 → P800 → P1000 → P1500 → P2000
Read · 1 min
Car & paint
Preparing a motorcycle tank for painting
Fill the dents, shape with P180 to P240, sand the primer surfacer with P400, key the old paint with P600 to P800. What to watch out for on a curved tank.
P180 → P240 → P400 → P600 → P800
Read · 2 min
Not sure P800 is right?
The finder asks about material, machine and goal – and tells you the grit and product.
Start the abrasive finder →