Abrasive Blasting

Chapter 296-818, WAC

Effective Date: 09/01/06

Helpful Tools

WAC 296-818

Helpful Tool: Types of Abrasives used for Blasting Operations

For printing


This helpful tool outlines the types and examples of abrasives used for blasting operations.

Types of Abrasive
Examples of Abrasives
Other Information
Synthetic or natural mineral grains
  • - Crystalline Silica
  • - Garnet

Silica sand is the most hazardous.
Limit the use of silica sand wherever possible.

For types of abrasive used in place of silica go to the Occupational Safety and Health Administration’s (OSHA), homepage at: http://www.osha.gov/. Select ‘S’ for Silica.

Slag abrasive
  • - Copper slag
  • - Nickel slag
  • - Mixed metal slag
May contain heavy metals.
Metallic shot or grit
  • - Steel
  • - Chilled cast iron
The potential hazard is considered minimal.
  • - Ground corncobs
  • - Ground walnut shells
Readily combustible organic abrasives can form explosive mixtures with air.





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