Fine · Smoothing and preparing
Sandpaper P320
Fine sanding. Fine surfaces, sanding primer surfacer, final corrections.
Roughly equivalent to 280 Grit (US CAMI standard). Why the numbers differ
01 · Where it fits
Where P320 sits in the sequence
Before
Pre-sand with P240 – the jump to P320 is no more than double, so the scratches disappear.
Fine range
P220–P400: Intermediate sanding before oil, wax and varnish, smoothing primer surfacer and primer, paint preparation. The most-used group in any workshop.
After
Carry on with P400 until the surface is as fine as the next job needs.
All grits in the Fine range
In the KORNDEX system:Paint preparation · Sand primer surfacer & primer P320–P600Paint preparation · Fine-sand wood P240–P400
What P320 is used for
Car & paint
Sand primer / primer surfacer
Wood
Between coats
Metal
Refine the surface
Plastic
Remove scratches and burrs · Paint preparation
Primer
Sand primer surfacer
02 · Buy
Products in P320
- Bestseller
- P80–P600
- Grit
- 150 mm
- Diameter
- 50 pcs
- Contents
€0.50 / pc · incl. VAT, plus shipping
- Bestseller
- P240–P1500
- Grit
- 150 mm
- Diameter
- 10 pcs
- Contents
€1.59 / pc · incl. VAT, plus shipping
- Bestseller
- P80–P400
- Grit
- 150 mm
- Diameter
- 50 pcs
- Contents
€0.50 / pc · incl. VAT, plus shipping
- P80–P400
- Grit
- 70 × 420 mm
- Dimensions
- 25 pcs
- Contents
€0.92 / pc · incl. VAT, plus shipping
03 · Know-how
FAQs about P320
What is P320 sandpaper used for?
Fine sanding: Fine surfaces, sanding primer surfacer, final corrections. Typical for Car & paint, Wood, Metal, Plastic, Primer.
Is P320 coarse or fine?
P320 belongs to the fine range (P220 to P400): smoothing and preparing. The higher the number, the finer the grit.
Which grit comes after P320?
After P320 comes P400. Never more than double the number per step – that way the finer grit removes the scratches of the coarser one.
Should P320 be used wet or dry?
Dry, with dust extraction – up to about P600 that is the standard today: faster, and no water in the metal or wood. Mesh discs and multi-hole patterns stop P320 from clogging.
Which grit comes before P320?
Before P320, sand with P240 (or finer). Jump straight to P320 from too coarse a grit and you won't get the scratches out.
Related guides
Car & paint
What grit sandpaper for car paint?
From body filler to finish: the grit sequence for a paint repair – and why you never skip a step.
P80 → P120 → P180 → P240 → P320 → P400 → P600
Read · 2 min
Car & paint
What grit before painting?
Primer surfacer with P320 to P400, old paint with P400 to P600, plastic with P320 to P400 – depending on substrate and paint.
P320 → P400 → P600
Read · 1 min
Abrasives
Sandpaper for random orbital sanders
Diameter, hook-and-loop, hole pattern: what has to match – and which grits belong in the workshop.
P80 → P120 → P180 → P240 → P320 → P400
Read · 2 min
Not sure P320 is right?
The finder asks about material, machine and goal – and tells you the grit and product.
Start the abrasive finder →