---
title: Products
date: 2026-07-28T12:28:00+02:00
author: Nick Demeyere
canonical_url: "https://www.expa-materials.com/en/products"
section: Pages
---
# Our Expanded Clay Product Range

Explore EXPA Materials' range of expanded clay aggregates. Available in various sizes to suit diverse applications in construction, landscaping, horticulture and more.

![Expa 0/1](https://www.expa-materials.com/uploads/images/products/_320xAUTO_crop_center-center_none_ns/expa-0-1.jpg)

### EXPA SAND

Ultra-fine lightweight sand for mortars & screeds. Reduces weight while improving thermal and acoustic performance.

![Expa 0/3](https://www.expa-materials.com/uploads/images/products/_320xAUTO_crop_center-center_none_ns/expa-0-3.jpg)

### EXPA 0/3

Fine expanded clay with high resistance and good workability. Ideal for strong lightweight screeds, mortars & insulation concrete blocks.

![Expa 3/8](https://www.expa-materials.com/uploads/images/products/_320xAUTO_crop_center-center_none_ns/expa-3-8.jpg)

### EXPA 3/8

A strong, versatile lightweight aggregate for substrates, green roofs, drainage and concrete based products.

![Expa 8/16](https://www.expa-materials.com/uploads/images/products/_320xAUTO_crop_center-center_none_ns/expa-8-16.jpg)

### EXPA 8/16

Coarse, ultra-light aggregate that significantly reduces structural loads. Suitable for drainage fills, substrates and lightweight screeds for foundations.

![Expa 16/32](https://www.expa-materials.com/uploads/images/products/_320xAUTO_crop_center-center_none_ns/expa-16-32.jpg)

### EXPA 16/32

Large, lightweight granules developed exclusively for first-stage drainage layers in landscaping, infrastructure and large-scale drainage projects.

![Expa 4/10 BROKEN](https://www.expa-materials.com/uploads/images/products/_320xAUTO_crop_center-center_none_ns/expa-4-10-BROKEN.jpg)

### EXPA BROKEN

Crushed angular aggregate combining low weight with excellent stability & strength. Its rough surface provides strong mechanical interlocking and high hook resistance. Ideal for infrastructure, drainage & concrete blocks.

### Need technical advice on the right expanded clay solution for your project?

Need technical advice on the right expanded clay solution for your project?

[Contact our teamContact our team](https://www.expa-materials.com/en/contact)

## Technical Specifications

ProductThermal conductivity λ (W/mK)PHReaction to fireEXPA SAND - 0/1 mm0.09 < λ < 0.121neutralA1 (non-combustible)EXPA 0/3 - 0/3 mm0.09 < λ < 0.121neutralA1 (non-combustible)EXPA 3/8 - 3/8 mm0.09 < λ < 0.120,1neutralA1 (non-combustible)EXPA 8/16 - 8/16 mm0.09 < λ < 0.120,08neutralA1 (non-combustible)EXPA 16/32 - 16/32 mmneutralA1 (non-combustible)EXPA BROKEN - 4/10 mmneutralA1 (non-combustible)

## Let's build a stronger future together.

Contact us to learn how EXPA Materials can support your next construction project.

[Get in touch today!Get in touch today!](https://www.expa-materials.com/en/contact)

![default](https://www.expa-materials.com/uploads/images/company/_320xAUTO_crop_center-center_none_ns/4555/DJI_20260807160349_0083_D.jpg)