COMPASS-ICS
Dehumidifier, Air Filtration & Water-Blasting Systems
Compass Industrial and Commercial Services, LLC
POB 10677
Houston, TX 77206
United States
ph: 281-222-9162
fax: 281-754-4269
info
Surface Preparation Standards - Water Blasting
WATER BLASTING STANDARDS COMPARISON
DESCRIPTIVE | NACE | SSPC | ISO | NACE/SSPC | NAVY |
White Metal | 1 | SSPC-SP-5 | Sa 3 | WJ-1 |
|
Near-White Metal | 2 | SSPC-SP-10 | Sa 2.5 | WJ-2 | C HB 2.5 |
Commercial | 3 | SSPC-SP-8 | Sa 2 | WJ-3 |
|
Brush-Off | 4 | SSPC-SP-7 | Sa 1 | WJ-4 |
WATER BLASTING STANDARDS
WJ-I - Clean to Bare Substrate Surface, when viewed without magnification, shall be free of all previously existing visible rust, coatings, mill scale, and foreign matter.
WJ-2 - Very Thorough or Substantially Clean Surface, when viewed without magnification, shall be cleaned to a matte (dull, mottled) finish with at least 95 percent of the surface area free of all previously existing visible residues and the remaining 5 percent containing only randomly dispersed stains of rust, coatings, and foreign matter.
WJ-3 - Thoroughly Clean Surface, when viewed without magnification, shall be cleaned to a matte finish with at least 2/3 of the surface free of all visible residues (except mill scale) & the remaining 1/3 containing only randomly dispersed stains of previously existing rust, coatings, & foreign matter.
WJ4 - Lightly Cleaned Surface, when viewed without magnification, shall have all visible oil, grease, dirt, dust, loose rust, loose mill scale, and loose coatings uniformly removed. Any residual material shall be tightly adhering.
Compass Industrial and Commercial Services, LLC
POB 10677
Houston, TX 77206
United States
ph: 281-222-9162
fax: 281-754-4269
info
