Select outlined round spots, chalky film, streaks from cavities, colored stains or non-wiping haze. The source asks for different first checks: water comparison, a dried reference wipe, drainage observation, chemistry history or magnification. A fine haze can require a texture investigation rather than a stronger cleaning chemical. The selected rows remain observation prompts and do not identify a contaminant from appearance alone.
Select the entries relevant to your review.
Visual patterns are clues, not chemical or corrosion diagnoses. 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 rinse clarity, water identity, drainage orientation, time delay and actual drying conditions. Compare the same area before finishing, after rinsing and after drying under consistent light. Follow the approved material-compatible procedure for any wipe or cleaning test. Dark staining may need specialist review. This page provides no acid treatment, water-quality threshold, drying temperature or corrosion acceptance rule.
Useful First Check: Compare normal water with known low-mineral rinse water
Possible Direction: Mineral concentration as droplets evaporate
Useful First Check: Wipe a dried reference area and inspect rinse clarity
Possible Direction: Compound carryover, suspended solids, or insufficient rinsing
Useful First Check: Observe drainage orientation and liquid trapped in features
Possible Direction: Slow drainage or contaminated liquid leaving cavities during drying
Useful First Check: Check chemistry, mixed-metal contamination, time delay, and corrosion history
Possible Direction: Chemical reaction or contamination; specialist review may be required
Useful First Check: Inspect under magnification before and after finishing
Possible Direction: Micro-scratching or surface texture rather than removable residue
Read the Jintaijin technical article. Source table reviewed 3 October 2026. Possible causes, directions and adjustments remain conditional reference fields.
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