What Are The Common Pain Points And Solutions for Using The Meyer Rod?

What are the common pain points and solutions for using the Meyer rod?

1: The coating is uneven and has stripes.

Reason: The pulling speed is inconsistent, the substrate is not flat, and there are air bubbles in the slurry.

Solution: Pull at a constant speed, fix the substrate on the vacuum suction platform, and de-bubble the slurry in advance.

2: The Meyer rod is prone to clogging the filament and has a short service life.

Reason: Dry slurry residue remains in the steel wire gaps, and cleaning is not timely.

Solution: Immediately soak in the solvent after use, gently clean with a soft brush, and never scrape the steel wire with hard objects.

3: The coating thickness does not reach the expected value.

Reason: Confuse the wet film thickness and dry film thickness, and ignore the coating solid content.

Solution: Wet film thickness × Coating solid content ≈ Theoretical dry film thickness.

4: Thin coatings have broken lines or missed coating.

Reason: The slurry particles are too large, getting stuck in the steel wire gaps.

Solution: Pre-filter the slurry, use a rod with a large gap or an extrusion-type filament-free rod.

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