Wet Film Thickness Gages
Measuring the film thickness of freshly applied coatings in the wet stage is very important. On one hand, film thickness influences the quality of a product; on the other hand, applying too much coating can be expensive. Depending on the application method, it is advisable to measure wet film thickness. For measuring wet film thickness, BYK-Gardner ofters a comb or step wet film gage.
Wet Film Thickness Gage - Comb Type
The comb is a ruler-shaped gage with two supports at
each of its six sides, having tabs of varying lengths.
- Hexagonal shape made of corrosion resistant stainless steel
Procedure:
- For measuring, push the comb gage perpendicularly into the film using the measuring range that corres ponds to the expected film thickness
- Remove the comb gage from the coating
- The wet film thickness will fall between the clearanceof the shortest tab that is wet and the clearance of the next shortest dry tab
- The plastic comb gage may be used up to 60°C (140°F)
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