Blast Abrasives

GMA PrecisionBlast™

The ideal garnet abrasive for fast, gentle blast cleaning on vulnerable surfaces and precision equipment.

GMA PrecisionBlast™

25 - 50 µm

Surface profile

Up to 31 m2/hr

Blasting rate

As low as 6 kg/m2

Consumption rate

GMA PrecisionBlast™

Fast and gentle precision abrasive.

Available in 120 and 200 mesh, GMA PrecisionBlast is a precise and efficient micronized abrasive, ideal for delicate, vulnerable or sensitive surfaces including stone, brick, timber, concrete, and ferrous and non-ferrous metals.

Used on some of the worlds oldest most famous landmarks and monuments including the Trevi Fountain and the Eiffel Tower.

Industry Applications

Metal fabrication
Stone & brick restoration
Soft metals
Concrete maintenance
Fibreglass & composites
Grafiti removal
Timber restoration

Proven performance in surface preparation


High productivity

Cut blasting hours by 30-50%* compared to other abrasives. GMA PrecisionBlast™ performance has been demonstrated through rigorous product testing and a track record of success in applications worldwide.


Cost-effective blasting

Deliver fast results at the lowest cost. GMA Garnet™ can provide significant savings in abrasive consumption, blasting hours, and disposal costs for your project. Overall, garnet sandblasting generally requires 30–50% less product than other abrasives.*


Ideal surface finish

GMA PrecisionBlast™ achieves an exceptionally clean surface, leaving no residue or embedment. Our uniquely hard and tough garnet can cut through the most resilient coatings, while giving you exceptional control to only remove the intended material.


Safe and compliant

GMA products are natural, chemically inert minerals with no toxic metals and little-to-no worker or environmental risks, including minimal dust during blasting - a safe choice for sensitive environments. GMA Garnet™ meets all industry and government safety and environmental standards


What makes GMA Garnet unique?

GMA Garnet™ is an inert natural mineral that outperforms other abrasives due to its inherent hardness, toughness, density, and angularity. These qualities, when combined with the recommended equipment and air pressure, provide teams with unmatched performance, such as reduced blasting hours, lower abrasive consumption, and excellent control over how much material is removed.

Blast cost calculator

How your abrasive choice impacts your business.

When estimating your abrasive blasting project costs, the abrasive price won’t tell the whole story. Forecast your profitability with an abrasive cost comparison based on independent third-party analysis of abrasive cost, abrasive consumption, blasting hours, disposal costs.

Case study

Trevi Fountain regains sparkle after precision cleaning with GMA Garnet

The 18th century Baroque monument was in a critical condition due to microbiological and biological attacks, corrosion from the fountain, rainfalls and wind as well as black encrustations from layers of dust, topsoil and dirt.

“We prefer GMA Fine garnet for its effective performance especially when we had to work with very low operating pressure valves.”

precisionblast case study
Contact GMA

Speak to an expert about GMA PrecisionBlast™

Request a product sample or onsite demo, or find your nearest GMA distributor.