Document Zn3QRqKxm4B30Z6wGKkoyZ45J

Gross References 1 ^ " Harshaw Chemical Oomj&ny Uversol House Paint Manganese Haphthenat : GGi Dj.% Paul Robinson, Lab* Dr* P* s* aimu to*' I* 0* FitsgeraXd, tab* to* 0* Do .RfliaSeker . , ^ 'r'V "INDEXED" do 25*53 . IIBMCEAHOT REPORT HO* 26$ PhAladeGLphia Laboratory October 21, 1949 RETBl TO SMALL LABORATORY LififliY LIGHT COLORED KAHGANESE UVERSGL DRIER TO IMPROVE "'be. Ha.rsb.aw Chemical Company. claims that, their Hversol jaaisgaac-.ee uaplitfeenste direr.has improved color*' A sample, ES** 20031* has boon compared with ?B*lo46 Manganese naphthenat it the formula of 301875, #40 Outside White,-to determine whether an improvement can be made in the color of the paint The Dversol drier does .hare a lighter color and better, clarity in bulk* However, when sad into |01-75 White at equal manganese content, it shows no improvement either in the wet or dry color* Drying tests were mad at normal temperature and low temperature in two film thicknesses* The drying rate with Ifversol was'about as good as with YD*X$46? it was slightly slower initially at low tempej^atur, but the final drying time was the same* Since there is m%- improvement in color, this drier does rot appear to be of farther interest* References: This work will be found in Philadelphia Laboratory Note book Ho* 3617, pages 104 to 106 and .120,3.21* PHILADELPHIA LABORATORY 7a ^.,,>.. -- W* F. SIHGLETOM HPS:m;lb