Wood Finishing

SOP - White Wood Finishing

 

Proper White Wood Sanding ensures that the finish being applied will have good adhesion, uniform stain color and the desired look intended for the finished part. The following guide is designed as a starting point for sanding procedure. Final grit selection may be changed to meet specific application requirements.

To customize your SOP, click the color coded box to choose the
Good/Better/Best/Unique product for each step.

1. IDENTIFY

Identify the type of wood you will be sanding. Harder species of wood require a more aggressive (coarse) grit. Softer ones, a less aggressive grit to achieve the same result.

2. SAND

UNIQUE

BETTER

GOOD

 

Abranet® 120

9A-232-120

 

DEROS 5" MID55020CAUS
(alt MR-5CV Sander)

915GV28 Backup Pad

Gold P120

23-650-120

DEROS 5" MID55020CAUS
(alt MR-5CV Sander)

915GV28 Backup Pad

Basecut® P120

22-612-120

DEROS 5" MID55020CAUS
(alt MR-5CV Sander)

915GV28 Backup Pad

Use a random orbital disc sander or orbital pad sander with a P120 grit abrasive to remove saw marks or other surface defects.

3. REFINE

UNIQUE

BETTER

GOOD

 

 

 

Abranet® P150

9A-232-150

DEROS 5" MID55020CAUS
(alt MR-5CV Sander)

915GV28 Backup Pad

Gold P150

23-650-150

DEROS 5" MID55020CAUS
(alt MR-5CV Sander)

915GV28 Backup Pad

Basecut® P150

22-612-150

DEROS 5" MID55020CAUS
(alt MR-5CV Sander)

915GV28 Backup Pad

Refine the scratches from the using the next finer grit of the abrasive. Always graduate one grit step at a time. (P120-P150-P180-P240)

 

Repeat the sanding steps until the surface has a smooth, uniform finish with the grit specified by the sealer manufacturer.

4. CLEAN AND INSPECT

UNIQUE

BETTER

GOOD

 

 

 

Abranet® P180

9A-232-180

DEROS 5" MID55020CAUS
(alt MR-5CV Sander)

915GV28 Backup Pad

Gold P180

23-650-180

DEROS 5" MID55020CAUS
(alt MR-5CV Sander)

915GV28 Backup Pad

Basecut® P180

22-612-180

DEROS 5" MID55020CAUS
(alt MR-5CV Sander)

915GV28 Backup Pad

Lightly sand the edges of the part. The sanding process has created sharp edges. Smoothing or "easing" these edges will allow the finish to maintain a uniform film thickness for proper adhesion and appearance.

 

If hand sanding, always sand in the direction of the grain using even pressure and uniform stroke length.

For more information visit www.mirka-usa.com

Recommended procedures for US wood finishing industry.