Measure what you see.
Manual PA-3301 BYK - Gardner USA 9104 Guilford Road Columbia, MD 21046 USA Phone 800-343-7721 301-483-6500 Fax 800-394-8215 301-483-6555 www.byk.com/instruments BYK-Gardner GmbH Lausitzer Str. 8 D-82538 Geretsried Germany Tel.
Description Description Description DIRECTIONS FOR DETERMINING WET HIDING POWER BY THE USE OF THE PFUND CRYPTOMETER General Remarks: All parts of the instrument – in particular the clear top plates – must be kept perfectly clean. Caution: Do not use solvents to clean the base plate While sky-light may be used for illumination in some cases, artificial light – a 100 watt or a 200 watt bulb – has been found to yield the most reproducible results.
Description Description then confirm visual hiding of the paint sample at the average setting. The number of square feet of surface area visually hidden by one gallon of paint is quickly determined by reference to Table 1 on Page 2. The corresponding thickness of wet paint in mils (1 mil = 0.001 inch) can also be determined from Table 1. For Example: If a No. 7 top plate with a wedge constant of 0.
Operation Operation TABLE 1. WET HIDING POWER AND WET FILM THICKNESS Cryptometer Setting 6 No. 2 Top Plate K = 0.002 Hiding Power Thickness 24 20,776 848 48,006 1,89 25 19,943 814 50,038 1,97 26 19,1835 783 52,07 2,05 (mm) ( M²/L) ( ft.²/gal.) (microns) (mils) 27 18,473 754 54,102 2,13 1 510,825 20.850 2,0066 0,079 28 17,8115 727 56,0832 2,208 2 249,2875 10.175 4,0132 0,158 29 17,199 702 58,039 2,285 3 166,11 6.
Operation Operation TABLE 1. WET HIDING POWER AND WET FILM THICKNESS Cryptometer Setting 8 No. 3.5 Top Plate K = 0.0035 Hiding Power Thickness 24 11,858 484 84,074 3,31 25 11,417 466 87,503 3,445 26 10,976 448 91,059 3,585 (mm) ( M²/L) ( ft.²/gal.) (microns) (mils) 27 10,535 430 94,488 3,72 1 284,69 11.620 3,5052 0,138 28 10,192 416 98,044 3,86 2 142,345 5.810 7,0358 0,277 29 9,8 400 101,6 4 3 94,9375 3.
Operation Operation TABLE 1. WET HIDING POWER AND WET FILM THICKNESS Cryptometer Setting 10 No. 7 Top Plate K = 0.007 Hiding Power Thickness 24 5,929 242 168,148 6,62 25 5,7085 233 175,006 6,89 26 5,488 224 182,118 7,17 (mm) ( M²/L) ( ft.²/gal.) (microns) (mils) 27 5,2675 215 188,976 7,44 1 142,345 5.810 7,0104 0,276 28 5,096 208 196,088 7,72 2 71,05 2.900 14,0208 0,552 29 4,9 200 203,2 8 3 47,4075 1.
Operation The formulas used to construct the above Table 1 may be simplified as follows H. P. = and T= 40.7/K x L H. P = Wet Hiding Power (in square feet per gallon) Top Plate Wedge Constant (slope) Cryptometer Setting (in millimeters) Wet Film Thickness (in mils or thousandths of an inch) K x L x 39.
253 017 659 EDFIS 0408 Europe
