Expanded Perlite. Expertly Delivered.

We help horticulture and construction professionals succeed with high-quality expanded perlite and the expertise to use it right.

Why Midwest Perlite?

Expert Guidance

Decades of hands-on knowledge to support your success, every step of the way.

Reliable Quality

Consistently high-performing perlite backed by rigorous standards and proven specs.

Real People, Real Support

No chatbots. No call centers. Just experienced humans who care about your results.

Trusted by Professionals in
Construction, Horticulture & Industrial Applications

From rooftop gardens to insulating concrete, Midwest Perlite delivers the material and the know-how that commercial teams depend on.

Construction Applications

Horticulture & Greenhouse Use

Industrial & Specialty Uses

Sustainable by Nature

Expanded perlite is an all-natural, non-toxic material with minimal embodied energy and one of the lowest Global Warming Potentials of any insulating aggregate. It's one of the most sustainable choices you can make.

Why Perlite Works

Expanded perlite isn’t just light — it’s purpose-built by nature.

When rapidly heated, raw perlite rock expands up to 20 times its original size. This process transforms the mineral into a lightweight, foamed structure filled with microscopic, sealed air bubbles. These trapped air pockets are the secret behind perlite’s powerful performance across a wide range of construction applications.

What Makes Perlite So Effective?

  • Inherently Insulative
    The porous, cellular structure traps air — one of nature’s best insulators — helping reduce heat transfer in walls, floors, and roofs.

  • Non-Combustible by Nature
    Perlite is inorganic and fire-resistant up to 2,000°F (1,093°C), making it ideal for fireproofing, chimney fills, and high-temp industrial uses.

  • Lightweight, Yet Reliable
    Perlite's ultra-low density reduces dead loads on buildings, enabling easier handling, lower transportation costs, and reduced structural requirements.

  • Moisture-Resistant & Chemically Stable
    Unlike organic materials, perlite won’t rot, decay, or support mold growth. It’s pH neutral and does not degrade over time.

  • Versatile by Design
    Available in a range of particle sizes — from ultra-fine to coarse — perlite can be tailored for specific jobs, including insulating concrete, masonry fill, pool bases, and specialty coatings.

Specs, Safety & Environmental Assurance

We believe in transparency, safety, and sustainability, and we’ve got the paperwork to prove it.

Safety Data Sheet

Everything you need to know about handling and storing expanded perlite.

Silica Lab Report

Independent lab analysis shows non-detectable levels of crystalline silica.

Perlite & LEED Contribution Guide

How expanded perlite can support green building credits.

Let’s Talk Perlite

Whether you’re building a rooftop garden or insulating a block wall, we’re here to help you get it right.