What is DFT Paint Thickness?
Coating thickness, paint thickness, or dry film thickness (DFT) is an important variable that plays a role in product quality, process control, and cost control. Measurement of film thickness can be accomplished by selecting the best mil gage for the particular application.
How is dry film thickness measured?
Dry Film Thickness can be measured on either magnetic steel surfaces or non-magnetic metal surfaces such as stainless steel or aluminium using a digital coating thickness gauge. The principle of electromagnetic induction is used for non-magnetic coatings on magnetic substrates such as steel.
What is zero & span adjustment?
A “zero” adjustment is always achieved by adding or subtracting some quantity, just like the y-intercept term b adds or subtracts to the product mx. A “span” adjustment is always achieved by multiplying or dividing some quantity, just like the slope m forms a product with our input variable x.
How do you calculate paint DFT?
DFT = WFT x % volume solids. For a 67% volume solids material with a WFT of 18 mils, DFT = 18 x 0.67 = 12 DFT. By simply reversing the equation DFT can also be measured to determine what the applied WFT was.
What is DFT microns?
For example, if a coating specifies you apply it at 500 microns WFT (Wet Film Thickness) and the volume solids of the product are 50% then once dry the DFT (Dry Film Thickness) reading will be 250 microns. Some coatings are 100% volume solids which means nothing thickness will be lost between WFT and DFT.
What is Testex tape?
Testex is the manufacturer of Press-O-Film replica tape. Press-O-Film provides inspectors and researchers a simple way to obtain an impression of a surface. Press-O-Film (POF) consists of a layer of crushable plastic microfoam coated onto a polyester film of highly uniform thickness.
How do I calibrate the elcometer 456 scan probe?
There are two main methods of calibrating the Elcometer 456 Scan Probe: Smooth for calibrating the gauge on smooth surfaces and Rough or 2 Point calibration for rough surfaces. Both methods require the calibration to start with the protective cap removed from the Scan Probe.
How does the elcometer 456 coating thickness gauge work?
The Scan Probe uses the Elcometer 456 Coating Thickness Gauge’s patented offset feature, ensuring that any cap wear during use is incorporated within the calibration process. The coating thickness gauge even informs the user when to replace the cap.
How do I change the language on the elcometer 456?
CONVENTIONS IN THESE INSTRUCTIONS The Elcometer 456 is operated using a simple menu structure which helps you get the most from your gauge. As an example, the Languages option is located within Setup which is under the Menu softkey and is shown in these instructions as: Menu/Setup/Language 3 Packaging The gauge is packed in cardboard packaging.
How do I adjust the elcometer thickness in elcomaster™?
ŸSelect the Dry Film Thickness tab and press ‘Next >’ ElcoMaster™ supports the new Elcometer 456 (identified in the software as Elcometer 456/4) and the Elcometer 456 Mk 3 (Elcometer 456/3).