Document ykkDjp4YrY5EwdNmdROZXyX3r

4 ;:1 t j t 0007-PMC-000000330 Avg. Residue Part., 325 Mesh Microns % Max. Oil Abs. J4I9.3 Bulk G/lOO# fpiatomaceous Silica, Paint Manufacture |6028 6025 [6030 :60L3 . 600. Celite 266, Dncalc. Snowfloss, TJncalc. Ceiite 26i, Flux Calc. Celite 165S " Celite 110, Flux Calc. 0--U 1.0 2-10 1-6 U-20 1.0 1.0 2.5 2.0 15.0 170 170 1U0 100 . 170 Fine Polishes White Color _ 6.00 6.00 5.21 5.22 5.22 ,60Alii 60F3 Celite 209 Celite 5106 in Vinyl Paste Bound Brook M69 Lacquer 10.0 IDiatomaceous Silica, Filter Aids 6031 Celite 551, Flux Calc. 60Cii ' Diaalite U200 60C10 ' `-Dicalite 2500 60CO .Dicalite Speed-Plus 60C11 , Special Speed-Flow 60C12 4 Dicalite 689T 60L1 ! Celite 5U5 6CT2 Suner Floss, Flint Calc. i 60P2 Celite 535 12-15 15 (150M) 15c 8.0(15CM) 0.5 j -. 5.20 * 5*2 * 5.20 Silica Aerogels 6015 60C1 60C13 60Y3 Santccel C Sylcid 308 Santocel 5k Syloid 162 U.o 0.2 3-7 0.2 5.86 " -`v; Laoqs. 5.50 5.88 lu5 Flat Varnish 6.06 Silica (Sana, etc.) j 6005 | 6010 j 60A1.2 j 6006 ; 6oc8 Amorphous Crystalline Hi-Sil Silica Flour 68 #17 Sand 6.0 1.0 6.5 0.5 30-35 22-27 Bound Brook Text.Emuls. Text.Emuls. U.5U U.U8 a.5u a.U9 160c 9 |6c f i ! 6CK2 Bond Sand Velveteen R. Silica Rose Tripoli Text.Ein.uls. a.5a 5 28 MLP a.65 U 50 a.56 j Silica (Glass Beads-Traffic Paint) 60A3 60A15 60C15 Sphere-o-Lite P90 - 80% Spheres Glass Beads - 75% Spheres Ground Glass a.50 Alumina 6g a5 60P1 6OCII1 Blastite Grain 90 or 80 Biastite Grain' 90 Alumina Hydrate Non-Skid 3.08 Non-Skid 3.05 5.o Mi CP t)ept. 0007-PMC-000000331 Page $0-3 March 15, 1955 Remarks Diatomaceous earth deposits consist of siliceous remains of fossil diatoms together with up to 30% organic matter, and various inorganic impurities as sand, clay, calcium and magnesium carbonates, and soluble salts* Two primary uses of diatomaceous earth are as a paint filler and as a filter medium. Among the desired effects which it contributes to paints, varnishes and lacquers are high flatting, high consistency, prevention of blistering, softer grinding, good suspension, increased flow and reduced penetration. -For rise as a filler, diatomaceous silica is available in three principal, grades; natural (dried), calcined, and processed calcined (fluxed with CaO). Dried earth is grey, tan, cream, or brown. The principal uncalcined earth is 6028 dry. Of higher cost but completely free from grit is 602$ dry, the use of which is ordinarily restricted to very fine polishes. For white or pale colored products, a snow white flux-calcined material such as 6030 dry is used. Use of processed earth results in lower consistency. Filter grades of diatomaceous silica are also classified as natural (dried), calcined, and flux-calcined. A coarseness grade is selected which permits the maximum volume of flow while still retaining the required degree of clar ity. Preferential use of 6031 dry is recommended. Santocel colloidal silica (aerogel), produced by chemical treatment of sodium silicate, has an agglomerate particle size of 3 to 7 microns. The extreme porosity of Santocel makes it highly efficient as a flatting agent. A ten dency to thixotropy dependent primarily on polarity gives fluid suspensions in polar solvents and very viscous suspensions in non-polar solvents. The silicas (essentially 99% Bilioon dioxide), 6005 dry and 6010 dry, are amorphous and crystalline respectively. The former is used in polishes, abra sives, etc., and the latter almost exclusively in wood fillers. 0007-PMC-000000332