Why do we sandblast with garnet instead of other media?

The problem with black-slag media

Cheaper slag media throws dark, dusty grit everywhere and can leave an inconsistent profile.

Slag abrasives are a by-product — coal or copper smelting residue, crushed and graded. They cut, and they are cheap, which is why they are common. The costs show up elsewhere:

• Dust. Slag breaks down fast on impact. A friable abrasive turns into airborne fines, which is what makes a slag booth so dark and why the grit ends up on everything nearby.
• What is in the dust. Slag abrasives carry more free crystalline silica and trace metals than garnet. Breathing silica fines is the mechanism behind silicosis, so the shop that saves money on media pays for it in ventilation and respirators.
• Profile consistency. Because the particles shatter rather than hold their shape, the anchor pattern varies across the part. An uneven profile means uneven adhesion, and adhesion is the whole point of blasting before powder coating.

What garnet gives you

A cleaner part, a better-bonded coat, and a safer shop — which is why it's our standard.

Garnet is a natural silicate mineral, hard and dense, with very low free silica. It holds its shape through the impact instead of exploding into fines, and that single property drives everything we like about it: less dust in the air, a repeatable profile on the part, better visibility for the operator working it, and media that can be recovered and reused rather than dumped after one pass.

For the part, the payoff is a uniform anchor pattern across the whole surface — the same texture in the corners as on the flats. That is what lets a cured coat bond evenly, and it is why we do not treat prep as a separate decision from coating. Our sandblasting media guide goes deeper on grades and profiles.

We run garnet on every sandblasting job, whether it is prep before coating or standalone restoration work — rust removal and paint stripping included. Standalone blasting is quoted by time, starting at $2.50 per minute. Drop-offs come in from across the region, including Bradenton.