Abrasive Blasting

Chapter 296-818, WAC

Effective Date: 09/01/06

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WAC 296-818

Helpful Tool: Types of Abrasives used for Blasting Operations

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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.

Link:
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.
Organic
  • - Ground corncobs
  • - Ground walnut shells
Readily combustible organic abrasives can form explosive mixtures with air.

 

 


 

 

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