Wet Film Thickness Gauge for Conformal Coating

£100.00 excl. VAT

Quick, low-cost wet film thickness measurement for conformal coating process control. Get real-time feedback during spraying or brushing and estimate dry film thickness before cure.

Description

Quick and Easy Measurement for Process Control

Wet film thickness measurement is a quick, reliable and low-cost way to control conformal coating application while it is still wet. By checking coverage before curing or drying, operators can spot issues early, make immediate adjustments, and prevent costly mistakes.

This simple check helps teams reduce waste, improve accuracy, and keep application consistent from start to finish.

Why use a wet film thickness gauge?

  • Real-time feedback during spraying or brushing β€” adjust technique immediately
  • Avoid over-application to control cost, weight, and coating performance
  • Reduce scrap and delay where dry measurements are difficult or destructive
  • Support process control for prototypes, engineering runs, and production lines

How it works

Place the gauge directly onto the wet coating so the stepped teeth touch the film. Read the first tooth that makes contact to capture the wet film thickness.

To estimate dry film thickness, multiply the wet reading by the coating’s resin-solids percentage. Because the method takes seconds, operators can keep coatings within target without waiting for cure or using destructive methods.

Optional support

SCH can support you with coating process setup and operator best practice, including film build targets, measurement technique, and inspection workflow integration.

πŸ‘‰ Explore Inspection & QC Training β†’

Tip: Wet film gauges are ideal for fast checks during application. For cured thickness verification on witness coupons and suitable PCB locations, see the Positector 6000.

πŸ“„ View full technical specification β†’

Technical Specification

This page provides technical guidance for wet film thickness measurement used to control conformal coating application prior to cure. Wet film gauges provide a quick indication of applied film build during spray, brush, or manual application processes.

Measurement method

  • Manual stepped-gauge method for wet film thickness
  • Gauge is placed onto the wet coating; the first contacting tooth indicates thickness
  • Dry film thickness can be estimated using resin-solids percentage (from coating TDS)

Typical use cases

  • In-process checks during spraying, brushing, or touch-up
  • Process set-up and validation during engineering runs
  • Controlling over-application to reduce cost, weight, and cure issues
  • Where dry-film checks are difficult, slow, or destructive

Good practice notes

  • Measure on a representative flat area where possible
  • Take multiple readings and record results for traceability
  • Clean the gauge after use to maintain accuracy and avoid contamination
  • Confirm the coating’s resin-solids percentage from the manufacturer TDS

Related products