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Elcometer 3230 Wet Film Wheels

The Elcometer 3230 Wet film Wheels, formally known as the Elcometer 120 consist of three circles. The central circle is of smaller diameter and is eccentric of the two outer circles. By rolling the gauge on a wet coating, the centre disc eventually touches the film. This point indicates the thickness. If the volume to solids ratio of the coating is known, then the wet film thickness can be used to predict the dry film measurement. Various measurement ranges from 0 to 25μm - 0 to 3000μm (0 to 1mil - 0 to 40mils) are available Continuous Scale results in ±5% measurement accuracy Suitable for flat and curved surfaces Stainless steel giving a hard-wearing instrument which can be cleaned with solvents for reuse

Wet Film Thickness

It is important that a coating is applied to the correct thickness. Applying too much wet coating will not only waste and money, but also there is also a possibility of the coating cracking during the curing process. Too little coating and there is a chance that the substrate will not be sufficiently covered. To control process variables, it is often desirable to measure whilst the film is still wet. Wet film measurements are also useful for systems where the dry film thickness can only be measured destructively.

Test Method - how to use a wet film wheel

Hold the wheel by its central spindle. Begin at maximum thickness to reduce risk of inaccuracy caused by surface tension. Roll the wheel through the wet film with the side 1 in the diagram touching the substrate. Roll for at least one whole turn and slowly enough for wetting to occur. Roll the wheel backwards by at least on complete turn. The wet film thickness is read from the scale, at the end of the wetted segment of the middle circle, 2 in the diagram. To use wheel on pipes, measure across the longitudinal axis (lengthways) of the pipe. On rough surfaces, measurements will be made from the surface peaks and represent the minimum wet film thickness.

Standards

ASTM D 1212-91-A BS 3900-C5-1B ISO 2802-1B NF T30-125

Order information

Model	Description	Scale Range	Graduations	Part Number
Elcometer 3230/1	Elcometer 3230 Wet Film Wheel	0 - 25μm	1.25μm	K0003230M001
Elcometer 3230/16	Elcometer 3230 Wet Film Wheel	0 - 40μm	2.0 μm	K0003230M016
Elcometer 3230/2	Elcometer 3230 Wet Film Wheel	0 - 50μm	2.5μm	K0003230M002
Elcometer 3230/3	Elcometer 3230 Wet Film Wheel	0 - 100μm	5.0μm	K0003230M003
Elcometer 3230/4	Elcometer 3230 Wet Film Wheel	0 - 150μm	7.5μm	K0003230M004
Elcometer 3230/5	Elcometer 3230 Wet Film Wheel	0 - 200μm	10.0μm	K0003230M005
Elcometer 3230/6	Elcometer 3230 Wet Film Wheel	0 - 250μm	12.5μm	K0003230M006
Elcometer 3230/7	Elcometer 3230 Wet Film Wheel	0 - 300μm	15.0μm	K0003230M007
Elcometer 3230/8	Elcometer 3230 Wet Film Wheel	0 - 400μm	20.0μm	K0003230M008
Elcometer 3230/9	Elcometer 3230 Wet Film Wheel	0 - 500μm	25.0μm	K0003230M009
Elcometer 3230/10	Elcometer 3230 Wet Film Wheel	0 - 1000μm	50.0μm	K0003230M010
Elcometer 3230/15	Elcometer 3230 Wet Film Wheel	0 - 1500μm	75.0 μm	K0003230M015
Elcometer 3230/11	Elcometer 3230 Wet Film Wheel	0 - 2000μm	100μm	K0003230M011
Elcometer 3230/12	Elcometer 3230 Wet Film Wheel	0 - 3000μm	150μm	K0003230M012
Elcometer 3230/1a	Elcometer 3230 Wet Film Wheel	0-1 mils	0.05mil	K0US3230M001
Elcometer 3230/2a	Elcometer 3230 Wet Film Wheel	0-2 mils	0.1mil	K0US3230M002
Elcometer 3230/3a	Elcometer 3230 Wet Film Wheel	0- 4 mils	0.2mil	K0US3230M003
Elcometer 3230/4a	Elcometer 3230 Wet Film Wheel	0- 6 mils	0.25mil	K0US3230M004
Elcometer 3230/5a	Elcometer 3230 Wet Film Wheel	0- 12 mils	0.5mil	K0US3230M005
Elcometer 3230/6a	Elcometer 3230 Wet Film Wheel	0- 20 mils	1mil	K0US3230M006
Elcometer 3230/7a	Elcometer 3230 Wet Film Wheel	0- 40 mils	2mil	K0US3230M007
Accessories	15cm (5”) Wet film wheel handle			KT003230N003
	50cm (19”) Wet film wheel handle			KT003230N002
	100cm (39”) Wet film wheel handle			KT003230N001
Packing List	Elcometer 3230 Wet Film Wheel, Storage case & Operating instructions