Water spots, uneven brightness, gray film, rounded details and contact marks require different checks on bathroom hardware. Select observed defects and compare the source review fields. Keep thread regions, sealing faces and edge radius in the acceptance record while assessing visible appearance. A brighter part does not by itself establish that sealing geometry or threaded features remain within the agreed requirements.
Select the entries relevant to your review.
Possible causes are hypotheses; source adjustments are conditional review directions, not approved settings or confirmed diagnosis. Check feature access and media lodging on representative parts; chemistry and operating limits require supplied guidance. Keep every selected requirement with the part and the actual trial record. Selecting a row does not show that its acceptance condition has been met.
Record incoming surface condition, rinse observations, drying delay and the defined appearance check. Measure protected sealing and thread features before and after representative tests. The source directions do not specify chemistry concentration, allowable feature change or the drying process for a supplied part.
Likely Cause: Hard water, poor rinsing, or slow drying
What to Check: Rinse quality, drying time, trapped water
Recommended Adjustment: Improve rinsing and dry parts quickly with controlled airflow
Likely Cause: Uneven media contact or mixed surface condition
What to Check: Part geometry, loading ratio, media shape
Recommended Adjustment: Reduce batch load and test media that reaches curved areas
Likely Cause: Metal fines, old media, or unsuitable compound
What to Check: Water clarity, compound concentration, media cleanliness
Recommended Adjustment: Clean the process and use suitable finishing compound
Likely Cause: Cycle time or cutting action is too aggressive
What to Check: Edge radius, thread areas, sealing faces
Recommended Adjustment: Shorten cutting stage and add a gentler polishing step
Likely Cause: Overloading or insufficient media support
What to Check: Part-to-media ratio, part weight, batch size
Recommended Adjustment: Increase media support and reduce direct part contact
Read the Jintaijin technical article. Source table reviewed 3 October 2026. Possible causes, directions and adjustments remain conditional reference fields.
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