Before coating, the pipe surface is grit blasted to roughen the surface and remove surface rust. With the roughening formed after gritblasting, the surface grows approximately 300% and this event is necessary for the epoxy to adapt to the surface and shows better adhesion.Genarally Swedish Standards SA (ISO 8501 -1) is used in the cleaning grade (blasting grades) of the blasted metal surface, the classification starts with SA1 and can be improved up to SA3.
| PIPE INTERNAL GRIT BLASTING LINE | ||||
|---|---|---|---|---|
| MODELS | IGB 48 | IGB 64 | IGB 100 | IGB 120 |
| PIPE DIAMETERS | MIN. 219 MM (8″) – MAX. 1219 MM (48″) | MIN. 406 MM (16″) – MAX. 1626 MM (64″ | MIN. 610 MM (24″) – MAX. 2540 MM (100″) | MIN. 610 MM (24″) – MAX. 3048 MM (120″) |
| THICKNESS | MIN. 4 MM – MAX. 20 MM | MIN. 4 MM – MAX. 25,4 MM | MIN. 5 MM – MAX. 25,4 MM | MIN. 5 MM – MAX. 25,4 MM |
| LENGHT | MIN. 8 MT. – MAX. 16 MT. | MIN. 8 MT. – MAX. 16 MT. | MIN. 8 MT. – MAX. 16 MT. | MIN. 8 MT. – MAX. 16 MT. |
| MATERIAL QUALITY | UP TO X 65 | UP TO X 80 | UP TO X 80 | UP TO X 80 |
