COVIA

IMSIL A-15 is a microcrystalline silica filler produced from inert, naturally occurring alpha quartz (98.6% SiO2) with a grape-like morphology, easily wetted and dispersed in solvent or water-based systems and selected for tint retention, durability, and resistance to dirt and weathering. Median particle size is 3.5 microns with 5.6 m2/g surface area and 85.5 TAPPI brightness. As a finer, micronized grade it suits higher gloss paints and systems requiring controlled mineral top size.

IMSIL A-25 is a microcrystalline silica filler produced from inert, naturally occurring alpha quartz (98.6% SiO2) with a grape-like morphology, easily wetted and dispersed in solvent or water-based systems and selected for tint retention, durability, and resistance to dirt and weathering. Median particle size is 5.0 microns with 5.3 m2/g surface area and 85.5 TAPPI brightness. It is a general-purpose grading for trade sales paints, OEM finishes, marine and industrial coatings, and potting compounds.

IMSIL A-30 is a microcrystalline silica filler produced from inert, naturally occurring alpha quartz (98.6% SiO2) with a grape-like morphology, easily wetted and dispersed in solvent or water-based systems and selected for tint retention, durability, and resistance to dirt and weathering. Median particle size is 8.1 microns with 4.9 m2/g surface area and 85 TAPPI brightness. It is a general-purpose grading for trade sales paints, OEM finishes, and industrial coatings.

IMSIL A-75 is a microcrystalline silica filler produced from inert, naturally occurring alpha quartz (98.6% SiO2) with a grape-like morphology, easily wetted and dispersed in solvent or water-based systems and selected for tint retention, durability, and resistance to dirt and weathering. Median particle size is 11.3 microns with 4.3 m2/g surface area and 83 TAPPI brightness. As a coarser grade it offers texture, traction properties, gloss control, and abrasion resistance in coatings, grouts, sealants, and related building products.

IMSIL A-8 is a microcrystalline silica filler produced from inert, naturally occurring alpha quartz (98.6% SiO2) with a grape-like morphology, easily wetted and dispersed in solvent or water-based systems and selected for tint retention, durability, and resistance to dirt and weathering. Median particle size is 1.6 microns with 7.3 m2/g surface area and 87 TAPPI brightness. It is the finest micronized grade, for high gloss paints, thin coatings, and inks requiring the tightest top size control.