Microcrystalline Silica
IMSIL®
Formulating reliable building materials requires more than basic fillers. It requires materials that deliver control, consistency and durability across demanding applications. IMSIL® microcrystalline silica is a functional filler engineered to support predictable performance in roofing materials, floor coatings and a wide range of sealants, adhesives and caulks.
Derived from naturally occurring alpha quartz, IMSIL is chemically inert, easily dispersed and highly stable. It helps manufacturers fine-tune viscosity, improve durability and enhance long-term performance - without interfering with chemical systems or compromising processability.
Product Highlight
Functional Filler for Control, Durability and Long-Term Performance in Building Products
IMSIL is a microcrystalline silica functional filler produced from alpha quartz, the most stable form of silica at room temperature. Its unique grape-like crystal structure disperses easily in water- and solvent-based systems, delivering consistent rheology control, chemical resistance and surface durability across a wide range of building product formulations.
Processed under Covia’s rigorous quality systems, IMSIL delivers reliable, repeatable performance for manufacturers who require precision in every batch.
Features:
- Produced from naturally occurring alpha quartz
- Chemically inert and nonreactive
- Easily wetted and dispersed in water- and solvent-based systems
- Consistent surface area and low oil absorption
- Excellent resistance to chemicals and abrasion
- Available in multiple grades to support formulation needs
Mineral:
Microcrystalline silica
Product category:
Functional filler, extender
Applications:
Interior and exterior paints, industrial and marine protective coatings, roof and floor coatings, wood coatings, road markings, sealants and adhesives
Consistent application:
Precise viscosity and rheology control for consistent application.
Durability and abrasion resistance:
Improved durability and abrasion resistance in finished materials.
Inter-coat adhesion:
Enhanced inter-coat adhesion between primers and topcoats.
Color and gloss retention:
Supports color and gloss retention over prolonged environmental exposure.
Higher loading:
Enables higher filler loading without compromising performance.
Consistent results:
Delivers predictable results across production batches.
Roofing materials and roof coatings
IMSIL enhances UV resistance, thermal stability and formulation control.
Industrial floor coatings
IMSIL enhances abrasion and scratch resistance, as well as chemical resistance, ensuring long-lasting durability and protection for high-traffic areas.
Sealants and adhesives
IMSIL greatly improves chemical resistance, enhances durability and adhesion control, and improves viscosity modification and reinforcement, helping to improve bond strength, enhance durability and ensure resistance to environmental stressors, including moisture and temperature fluctuations.
Built for Performance
Rheology and Formulation Control
IMSIL’s microcrystalline structure allows formulators to control viscosity and consistency with precision. Its uniform surface area and low oil absorption support stable, repeatable formulations—helping manufacturers maintain workability and application performance across a wide range of building products.
Chemical Resistance and Durability
Highly inert to strong acids and bases, IMSIL enhances resistance to chemical exposure in demanding environments. Its hardness and stability also improve abrasion resistance, supporting long-term durability in coatings, sealants and adhesives exposed to wear, moisture and temperature fluctuations.
Surface Appearance and Retention
IMSIL helps control gloss and sheen while supporting color and finish retention over time. These properties help maintain appearance and performance even under prolonged environmental exposure.
Controlled Performance for Building Products
Chemical
Resistance
Durable
Performance
Rheology
Control
Reliable
Supply
Reliable Quality, Exceptional Support
Consistency You Can Count On
IMSIL is produced under Covia’s rigorous quality assurance programs to ensure uniform particle characteristics, consistent performance and dependable results from batch to batch. That consistency helps manufacturers reduce variability and maintain control across production runs.
Expertise and Logistics
IMSIL is backed by Covia’s technical expertise and nationwide logistics network. Whether you’re optimizing roofing materials, construction products or sealant formulations, Covia delivers the materials and support needed to keep building projects on schedule.
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Contact Covia today at 1.800.243.9004 or Sales@CoviaCorp.com, or click to fill out this form.