Belt Selector
Step 1 of 3
Select Cleaning Standard
Select the surface cleanliness standard required by your specification. ISO 8501-1 (Sa / St), EN 1083-2 (Ma) and SSPC standards are all supported — they map to the same belt selection.
ISO 8501-1 — Sa (Abrasive Blast)
| Sa 1 | Light blast cleaning | SSPC-SP7 / NACE #4 |
| Sa 2 | Commercial blast | SSPC-SP6 / NACE #3 |
| Sa 2½ | Near white metal | SSPC-SP10 / NACE #2 |
| Sa 3 | White metal (100%) | SSPC-SP5 / NACE #1 |
EN 1083-2 — Ma (Mechanical) & ISO 8501-1 — St (Hand/Power Tool)
| Ma 1 | Light bristle blasting | ≈ SSPC-SP11 light |
| Ma 2 | Commercial mechanical | ≈ SSPC-SP11 |
| Ma 2½ | Near white mechanical | SSPC-SP11 + profile |
| Ma 3 | White metal mechanical | SSPC-SP11 high profile |
| St 2 | Hand tool clean | SSPC-SP2 |
| St 3 | Power tool clean | SSPC-SP3 |
SSPC Standards
| SP5 | White Metal Blast | Sa 3 / NACE #1 |
| SP10 | Near White Blast | Sa 2½ / NACE #2 |
| SP6 | Commercial Blast | Sa 2 / NACE #3 |
| SP11 | Power Tool to Bare Metal + profile | Ma class |
| SP7 | Brush-Off Blast | Sa 1 |
| SP3 | Power Tool Clean | St 3 |
| SP2 | Hand Tool Clean | St 2 |
Profile Grades — EN 1083-2 / SSPC-SP11
| 1.5 mil | 38–50 µm anchor profile | Grade 1–2 |
| 2 mil | 50–75 µm anchor profile | Grade 2–3 |
| 3 mil | 75–100 µm anchor profile | Grade 3–4 |
| >4 mil | >100 µm anchor profile | Grade 4–5 |
ISO 8501-1 — Sa Standards (Blast Cleanliness)
Sa 2
Commercial Blast
Scale, rust and paint thoroughly removed; firmly adhering residues may remain
SSPC-SP6 · NACE #3
Sa 2½
Near White Metal
Max 5% light staining remaining
SSPC-SP10 · NACE #2
Sa 3
White Metal
100% clean — uniform metallic sheen
SSPC-SP5 · NACE #1
St / Ma — Hand Tool, Power Tool & Mechanical Cleaning
St 2
Hand Tool Clean
Scrapers & wire brushes — loose scale and rust removed
SSPC-SP2
St 3
Power Tool Clean
Power tools — metallic shine clearly evident
SSPC-SP3
SSPC Standards
SP5
White Metal Blast
≡ Sa 3
SP10
Near White Blast
≡ Sa 2½
SP6
Commercial Blast
≡ Sa 2
SP11
Power Tool + Profile
Ma class · with anchor
SP7
Brush-Off
≡ Sa 1 · min. Sa 2 output
SP3
Power Tool
≡ St 3
SP2
Hand Tool
≡ St 2
Step 2 of 3
Select Substrate Material
Substrate determines the belt chemistry. Stainless steel requires dedicated stainless belts and a separate accelerator bar to prevent iron contamination.
Carbon Steel
Structural steel, pipelines, tanks, machinery
Stainless Steel
Food grade, marine grade, process equipment
Aluminium
Aerospace, automotive, non-ferrous structures
Sheet Metal
Thin gauge steel panels, automotive body
Concrete
Floors, walls, civil structures
Stainless Steel selected. You must use stainless-grade belts (blue label) and the dedicated
Stainless Accelerator Bar to prevent iron contamination. Never use a carbon steel bar on stainless work.
Step 3 of 3
Select Surface Profile Grade
Select the required anchor profile depth for your coating system. Coarser profiles improve mechanical adhesion for heavy-duty coatings.
EN 1083-2 · SSPC-SP11 — Profile grades defined in EN 1083-2 and measured by surface roughness comparator or gauge (Ra/Rz).
Grades shown in µm (EN 1083-2) and mil equivalents (SSPC-SP11).