Fluoro-Finder III Powder Tracer
UV-reactive powder tracer for fast, objective coverage checks. Ships dry for safe transport and easy mixing.
Dry Fluorescent Powder for Fast Shot Peening Coverage Checks
Fluoro-Finder III (DRY) is a fluorescent tracer powder used to verify shot peening coverage quickly and reliably. Apply the prepared solution to the target area, run the peening process, then inspect under UV light to reveal any unpeened zones. This visual method streamlines setup, reduces rework, and avoids relying on 200% coverage as a proxy for completeness.
Technical Data
- Format: Dry fluorescent powder (user-mixed working solution)
- Preparation: Mix with one pint (?473 ml) of methyl ethyl ketone (MEK) before use
- Inspection: UV-A lamp (?365 nm recommended) for clear fluorescence
- Application: Brush or wipe a thin, uniform layer on the area to be verified
- Use cases: Process setup, parameter validation, periodic coverage checks on production parts
How to Use
- Prepare the solution by mixing the dry powder with one pint of MEK in a suitable container.
- Apply a thin, even coat to the surfaces where coverage must be confirmed; allow solvent to flash off.
- Peen according to your process parameters.
- Inspect under a UV-A lamp; bright areas indicate remaining tracer (insufficient coverage), dull/removed areas indicate adequate impact.
- Document results for setup records or audits; clean the part per your shop procedure.
Frequently Asked Questions
Why use a fluorescent tracer instead of 200% coverage?
The tracer provides a direct visual indication of untreated spots, allowing you to confirm true coverage without overprocessing parts.
What UV lamp should I use?
A UV-A inspection lamp around 365 nm is recommended for strong, consistent fluorescence and clear contrast.
Will it work on different alloys and finishes?
Yes. It's commonly used across a range of metals and finishes. As with any process aid, test on a representative sample to confirm adhesion and visibility.
How thick should I apply the tracer?
Only a thin, uniform film is needed. Excess product can mask detail and make interpretation harder.
How do I remove the tracer after inspection?
Follow your shop's approved solvent cleaning procedure. Ensure full removal before subsequent operations such as coating or assembly.
Any safety considerations?
Yes. The mixed solution uses MEK, which is flammable and requires PPE, ventilation, and proper handling/storage per your EHS rules.




