Dicalite Perlite Filter Aids

Dicaperl ®Hollow Glass MicrospheresDicaperl ® is a family of lightweight, hollow glass bubble fillers produced andmarketed worldwide by Grefco, Inc. Available in a variety of particle sizeranges, with or without surface modifications, Dicaperl ® is a very cost effectivedensity reducing filler for any resin/binder system.Silane-modified Dicaperl ® functional fillers substantially reduce weight, reduceshrinkage, improve impact, nailing, stapling, and sanding properties of moldedparts. The finest grades are used in RP/Composites including glass fiberreinforced products formed by both spray-up and hand lay-up productionprocesses, where surface detail is critical. The coarser grades are used incast or molded parts not requiring ultra-fine surface appearance.Fine particle size, unmodified grades of Dicaperl ® are quite effective asthickening, and anti-sag additives in specialty coatings. The coarser gradesare used to produce texture and acoustical coating mixes, block filler paints,etc.Dicaperl ® products are available in a range of densities, degrees of whitenessand strengths to suit most formulating requirements. Two proprietary coatingprocesses are used, resulting in two distinct series of products, the standard“10 Series” and the high performance “20 Series”.The physical characteristics of the Dicaperl ® grades are tabulated below.Dicaperl ® Product SummariesPRODUCT GRADE HP-110 HP-210 HP-510 HP-710 HP-910Particle Shape Bubble Bubble Bubble Bubble BubbleAverage Particle Size (micron) 310 110 70 65 50Particle Size Distribution, Ro-tap-U.S.Standard Sieves, Cumulative Wt.%No. 50 55 20 0.5 Tr. Tr.100 85 50 10 7 3325 95 90 85 85 90Pan 5 10 15 15 10Effective Density (1)lbs/ft³ 11.0 11.5 14.0 14.7 15g/cm³ 0.18 0.18 0.25 0.25 0.24(1) In Polyester resinAll Dicaperl ® “Series 10 and Series 20” products are white, surface modified materials with asoftening point of approximately 1000°C (1800°F) and a surface pH of 7. The surface modification iscomparable to that obtained with conventional silanes containing organic functions such as amino,vinyl, cyclic epoxy, aliphatic epoxy, methacryloxy and mercapto groups. Unmodified gradesdesignated HP-100, HP-200, HP-500, HP-700 and HP-900 are also available.Dicalite A World Of Filtration Experience - page 17/19