Water Filtration Application

As a preferred substitute for silica sand in water filtration, Desolidex offers superior performance and many additional benefits, including an overall reduction in filtration costs.

  • Lasts up to five times longer than sand
  • Requires 16% less media compared to sand
  • More efficient backwashing
  • Reduces energy usage
  • 100% recycled, sustainable, and environmentally friendly
  • Won’t harbour contaminants
  • Doesn’t support the growth of algae and fungus
  • Filters down to a lower micron level than sand
  • Removes up to 30% more material
  • Won’t become saturated or form filter cake
  • Acidic solution will not cause shrinkage


Made of 100% recycled glass

Data Sheets

General Information

Desolidex is an amorphous (non-crystalline) filter media that’s made of 100% crushed recycled glass. Lower density and smooth, microscopic glass surfaces make Desolidex a preferred replacement for common silica sand. The manufacturing of Desolidex is 100% sustainable and environmentally friendly with no intrusive mining involved. For these reasons, Desolidex is quickly becoming an industry favourite.

The Benefits of Glass Filter Media

Glass is a relatively recent addition to the options available for water filtration media, having been first used in the late 1990s. However, it quickly gained popularity and is now the preferred media as an environmentally-friendly option that out-performs most others.

Lower Cost

Because Desolidex lasts longer, requires less material, requires less backwashing, and improves backwashing efficiency, it saves on operating costs throughout the filtration and backwashing processes.

Less Frequent Backwashing

Glass filtration media doesn’t clump together and calcify the way other filter sands do. When this happens, water is allowed to pass through the calcified channels without being filtered properly, and the filter requires backwashing.

Glass filter media doesn’t require backwashing as frequently, allowing for longer filter run times and improved productivity. When backwashing is required, it is more efficient and can be done faster, because the glass readily releases contaminants.

Longer Filter Life

Sustained build-up in and on top of the filter media, as well as corrosion of the media itself, cause filters to need replacement in as little as two years. Glass filtration media will last up to five times as long, which is around 8-10 years, because of its efficient filtration and resistance to damage, even in acidic solutions, which will normally cause shrinkage to filtration media. Glass filtration media doesn’t harbour contaminants and is resistant to the growth of algae and fungus, which leads to more frequent backwashing and filter media replacement.

Better Filtration

Glass filtration media filters down to 3 μm. Standard filter sand only filters down to 20 μm, leaving behind particles that are too small to be caught by the inferior media. Desolidex removes up to 30% more material from the water flow than standard silica sand and reduces your energy usage.


Desolidex improves water filtration in any system that previously employed standard silica sand or other types of filtration media. Common applications include drinking water, wastewater, and glass filter for pool water. Desolidex is generally used as the lower bed in a dual-media filtration system.

The most crucial of these applications is, of course, drinking water filtration. Around the world, the pursuit of a water filtration system that will cost-effectively turn non-potable water into a reliable resource for deprived communities has led us to the discovery of glass as a filtration media. In combination with other media in a multi-media filtration system, Desolidex can achieve an affordable and sustainable drinking water.

A glass filter for pool water can effectively and affordably produce reliably clean water for both residential and commercial use. Industrial water often requires media that can withstand harsh chemical conditions, and wastewater has a tendency to develop algae and other growths. Due to its resistance to corrosion and algae growth, Desolidex also makes a suitable filter media for industrial and wastewater treatment.

Recycled Material

Glass is available in an endless supply due to the high rates of glass recycling worldwide. However, once glass is recycled, it still runs the risk of ending up in a landfill due to the low demand for recycled glass, which is crushed into “cullet”.

During the recycling process, many colours of glass are mixed together. The produced cullet is unsuitable for most glass manufacturing purposes because it produces an inconsistent colour in the finished product. This leaves much of the world’s recycled glass unusable. Desolidex contains only recycled glass cullet that would otherwise go to waste and requires 16% less media compared to standard silica filtration sand. It is a 100% sustainable material.


Choose the packaging and shipping arrangement that best suits your needs, from small packaging to bulk bags or custom sizes made just for you. We can accommodate virtually any size, from one metric ton to thousands.


We maintain competitive pricing in an effort to win and retain your business for as long as you need us. Our goal is to meet the needs of every customer, including those with special requests and demanding production schedules.

A 15-day general turnaround for manufacturing allows us to get your compounds to you as quickly as possible, so you can keep up with the demands of your business. Contact us to get in touch with a distributor in your area if you don’t have time to wait for materials.

We currently ship to 44 countries across the world and we’re happy to ship to yours, too. The dependable and professional logistics channels we have in place make it easy to offer great pricing and service regardless of your location.

African Pegmatite

With 48 years as professionals in mining and manufacturing, we have the insight, network, and experience to offer you the very best in quality, service, and efficiency. We’ve been accredited by the ISO 9001 since 2002 and have most recently met the 2015 standard.

We aim to provide the very best materials available to our customers, and become your one-stop shop for colourants, minerals, compounds, and more. Take a look at our general water filtration page to see all the other water filtration and supplementary products we have available.

If you’d like to become a distributor of African Pegmatite products, get in touch with us and we’ll customise an arrangement with you.