Harborlite® perlite for filtration
Harborlite: Highly effective perlite filtration media
What is Harborlite?
Imerys Harborlite perlite is an innovative filtration solution derived from a unique amorphous mineral, specifically fused sodium, potassium, and aluminum silicate. In its natural state, perlite is a dense, glassy rock formed from volcanic activity. When processed under controlled conditions, this mineral expands significantly—up to 20 times its original volume—creating a highly effective filter media that excels in solid/liquid separation applications.
Benefits of Imerys Harborlite perlite for filtration
Imerys Harborlite perlite offers an effortless transition for users looking to switch their current filtration media. Our perlite filter aids integrate seamlessly into both pressure and vacuum filtration systems without compromising performance or efficiency.
Perlite is naturally inert, so no tastes, colors, or odors are transferred to the filtered product. This is especially important for food applications.
Imerys Harborlite Perlite filter aids can weigh up to 50% less than traditional filtration media. This lower weight enhances ease of handling and contributes to safer operations during filtration processes.
Our perlite filter aid grades offer a density advantage of 20% to 50% over other filter aids, resulting in enhanced filtration efficiency and lower operational costs.
Unlike some filter aids, Imerys Harborlite perlite maintains its porosity at the end of the filtration process, ensuring that filter cakes do not compact and remain effective over time.
- High-efficiency filtration – Consistent flow rates, excellent retention, and clarity.
- Food- and Pharma-grade certified – Chemically inert, safe, and non-toxic.
- Driven by science – Supported by Imerys’ world-class mining, processing, and research teams.
Product properties of Imerys Harborlite perlite
Harborlite brand filter aids have been a trusted choice in the U.S. marketplace for nearly 50 years, serving a wide range of industrial filtration applications. Notable properties of Harborlite perlite include:
- Unique multihedral morphological structure: This structure enhances filtration performance and stability.
- Low bulk density: Facilitates easy handling and application.
- High void volume and porosity: Ensures effective liquid filtration while capturing solids.
- Neutral pH and hydrophilic nature: Safe for use in sensitive applications.
Technical and research capabilities
Imerys' global Science and Technology centers focus on continuous product development and customer-specific solutions.
- Filtration trials and support labs in North and South America
- Customized grade development for complex filtration systems
- Scientific support for regulatory compliance and documentation across regions
Perlite manufacturing network
Imerys Harborlite perlite is mined from premium deposits in the United States. The ore undergoes meticulous milling before being shipped to one of our six processing plants across North America. When our granular perlite is subjected to temperatures between 1,600°F and 2,400°F, it expands explosively, creating low-density, multicellular particles ideal for filtration. Our network of expansion plants can readily manufacture any filter aid grade, with operations strategically located a short distance from filtration customers in most industrial regions.
Tailored solutions for diverse applications
Imerys Harborlite Perlite is designed to meet the diverse filtration needs of various industries and applications. Our Harborlite product range is finely turned to ensure optimal particle size distribution and tailored porosity to suit specific applications.
Contact our expert teams today to discuss how Imerys can support your filtration needs.
