7/25/2019 10-Moisture Meter Memo

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USING A MOISTURE METER

A moisture meter can help you determine whether or not you

are ready to apply you next coat of product, or if the

application is fully cured. Because of the heavy-build natureof the coating, the electrode pins can penetrate the surface

and read the moisture percentage of the coating. Below you

will see the procedure for using this device.

NOTE:This is only to be used to double-check the coating.The primary method of determining the dry to recoat time is

by referring to our Dry Times vs. Humidity chart found on

the back of all of our product data sheets.

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1.

Allow coating to reach the recommended dry time as seen on the Dry Times

vs. Humidity chart.

2.

Though some moisture meters are designed for moisture in other

construction materials (i.e. gypsum, plaster, mortar, etc.), it should remain

on the Wood setting when measuring our product.

3.

With the percentage at 0.00%, press the electrode pins into the coating with

roughly the same pressure you would use for the thumb test. Coating that isdry to recoat will give a reading of less than 12%.

4. The more difficult it is to get a reading, the more likely it is that the coating is

dry. Dry coating is tougher for the electrodes to penetrate than coating that

is not yet ready to recoat.

5. If coating is applied too thick for one coat, you may never get a reading

below 12%. It may be necessary to sand down the coating with 120-grit

sandpaper. Then, allow more time to dry and retest with the moisture meter.

Check your thickness with a dry film thickness gauge for accurate records.

6.

Do not penetrate coating to the metal surface. This will cause an inaccuratereading, or OL to be displayed on the meter.

7.

As the dried material cures, the percentage should decrease until the point

that it is not giving a reading. If you are consistently getting readings above

0%, the material is not fully cured. Always compare moisture meter readings

to the adequate cure time durations on the product data sheets