Release Charts
For rapid and precise hiding power measurements
These charts have a unique surface which is readily wetted by waterborne or solvent borne paints, but from which the dried film can easily be stripped with adhesive tape. Not so easily as to produce undamaged free films. The stripping feature permits the dry film weight on a measured area to be determined precisely by weighing on an analytical balance before and after film removal. The spreading rate (H) and wet film thickness (T) can then be calculated from the following simple relationships: