Battery Separator Properties Chart

Typical Properties
PPG Silica Grades	Manufacturing Location	Oil Absorption (ml/100g)	BET Surface Area (m ²/g)	pH	Tamped Density (g/l)	Median Particle Size (µm)
Hi-Sil™ SBG	USA	185 - 215	155 - 185	6.5 - 7.3	160	15
Hi-Sil™ WB10	USA	195 - 225	150 - 200	6.5 - 7.5	142	18
Hi-Sil™ WB37	USA	245 - 265	160 - 190	6.5 - 7.5	245	41
Hi-Sil™ WB10D	Netherlands	210 - 240	160 - 200	6.3 - 7.5	175	25
Hi-Sil™ WB35D	Netherlands	230 - 250	145 - 175	6.5 - 7.5	140	23
Test Method Notes BET surface area values for WB10D and WB35D are measured by 5 point BET BET surface area values for SBG, WB310 and WB37 are measured by 1 point BET Oil absorption values are measured using a Brabender Absorptometer E Particle size values were measured using Laser Light scattering Values for tamped density and mean particle size are typical values

Typical Properties