TECHNICAL GUIDE / 2026-10-02
Short answer. The CHAOYAN P grit family is the catalog route for abrasive belts. Specify the P model, coating process, particle distribution, shape and batch acceptance criteria before comparing finished belts.
Why the P series matters
FEPA identifies P grit for coated abrasive grains. Its overview describes coated products as abrasive grain bonded to a backing such as paper or cloth. The CHAOYAN product catalog explicitly maps P grit to belts, paper, cloth and flap products, and lists a belt use case page.
A buyer should keep the P prefix in the RFQ and every sample label. A numeric grade shared with an F model does not establish equal distribution or interchangeability. Confirm the applicable coated abrasive grain standard and edition.
| Input | Buyer should state | Reason |
|---|---|---|
| P grade | Current designation and standard | Correct series |
| Coating | Make coat / size coat context | Process fit |
| Backing | Belt construction | Trial context |
| Result | Cutting and service criteria | Finished belt evaluation |
Assess grain and belt performance
First check the grain: model, chemistry, physical properties and distribution against the agreed sheet. Then make belt samples with controlled coating, backing and curing variables. Finished belt performance cannot be inferred from the grain PDS alone.
If the buyer is replacing a current grain, ask for a working sample and production record. Record the candidate batch and any particle shape adjustment, then compare belts under the same workpiece and test method.
Selection guidance
Use the P grit family or abrasive belt product page, then request the P model PDS. Include the belt construction, current grade, required standard, target quantity and trial plan in the inquiry.
Common mistakes
- Substituting an F model for a P model solely by number.
- Attributing belt performance to grain while backing or coating changes.
Frequently asked questions
Which product series does CHAOYAN list for belts?
P grit is the listed coated abrasive series for abrasive belts.
Is a P grit product sheet enough to approve a belt?
No. The finished belt needs its own controlled process trial and acceptance test.
