Document zdQjbMq8J8g3emLBGOG8y4mv0

FILE NAME: Synkoloid (SYN) DATE: 1975 Jul DOC#: SYN035 DOCUMENT DESCRIPTION: Results of mineralogical analysis of taping and spackling compounds MOUNT SINAI SCHOOL OF MEDICINE o f The CityU niversity o f New York. To: Dr. Irving J. Selikoff From: Dr. Arthur N. Rohl Df: August 5, 1975 Subjtet The five samples of drywall joint taping compounds submitted by the International Brotherhood of Painters and Allied Trades in July 1975 have been analyzed by x-ray diffraction, optical and electron microscopy. The accompanying table of results shows that four contain asbestos, including tremolite and chrysotlle. Three of the five compounds are in page form with labels indicating a vinyl-type base. In order to determine whether vinyl chloride may be released during application of the compounds, gas chromatography and mass spectrometry were used to analyze for vinyl chloride. In addition to the three paste compounds described herein, four others in vinyl-and latex-paste form were also analyzed. Results were negative for vinyl chloride. cc: S. Frank Raftery John Pecoraro o a -a -i s m MSH 20M 74 P1AINT1FFS EXHIBIT S '/ s RESULTS OF MINERALOGICAL ANALYSIS OF /ETAPING AND SBUCKLING COMPOUNDS SUDMITTED DY J. PECORARO, JULY 1975 Handi-Patch QUARTZ CALCITE dolomite Sterling Ready Mix vinyl Joint cement CALCITE MICA TALC knolinite chrysotile(5-8%) tremolite (1-2%) S-C-L vinyl taping compound CALCITE MICA TALC kaollnito chrysotile(10-15%) tremolite(8-12%) Sterling All-purpose CALCITE MICA QUARTZ TALC kaolinite tremolite (1-2%) Synko CALCITE MICA chrysotilo(8-12%) talc Major component are in capital letters and substances present in lesser quantities are shown in lower case letters. Asbestos minerals,, where present, are underlined and their weight-percentage Indicated. TAPING AND SPACKLING COMPOUNDS SUBMITTED BY J. FECORARO, JULY 1975 Handi-patch vinyl spackling compound (paste) Hand!-Products Company ' P.O. Box 1955 Cleveland, Ohio 44106 S C L vinyl joint taping compound (paste) Sterling-Clark Lurton Corporation Malden, Mass. 02148 Sterling 12-Star All-purpose triple use joint cement topping cement and texture compound (paste) Stebbins & Roberts (S R R Inc.) Little Rock, Fort Worth, Oklahoma City ' Sterling 12 Star Ready mixes all purpose vinyl joint cement (dry) Stebbins & Roberts (S & R Inc.) Synko Triple duty joint compound The Synkoloid Company 2945 E. Maria Compton, California 90221 (dry) 4 0 '