Hydroblasting Standards
 

Rust Grade Standards

Rust Grade C

Rust Grade D

Preparation Standard C HB2

Rust Grade C

C HB2 Rust Grade C Hydroblasted to an Sa2 equivalent

Degree of Flash Rusting

C HB2 L Light Flash Rusting

C HB2 M Moderate Flash Rusting

C HB2 H Heavy Flash Rusting

Preparation Standard C HB2½

Rust Grade C

C HB2½ Rust Grade C Hydroblasted to an Sa2½ equivalent

Degree of Flash Rusting

C HB2½ L Light Flash Rusting

C HB2½ M Medium Flash Rusting

C HB2½ M Heavy Flash Rusting

Preparation Standard D HB2

Rust Grade D

D HB2 Rust Grade D Hydroblasted to an
Sa2 equivalent

Degree of Flash Rusting

D HB2 L Light Flash Rusting

D HB2 M Medium Flash Rusting

D HB2 H Heavy Flash Rusting

Preparation Standard D HB2½

Rust Grade D

D HB2½ Rust Grade D Hydroblasted to an Sa2½ equivalent

Degree of Flash Rusting

D HB2½ L Light Flash Rusting

D HB2½ M Medium Flash Rusting

D HB2½ H Heavy Flash Rusting