Walnut Shell for Rust Removal need to be added to the hopper of your abrasive blaster to utilize in blasting. There is no other special equipment or preparation required. Depending on the size of the material you are working on, you can easily adjust the grit size and stream speed to suit your needs perfectly.
Furthermore, because walnut shells do not absorb moisture, they can be used and reused repeatedly before they need to be replaced. Their multi-faceted surface means they maintain effectiveness longer, and because they are non-toxic, you don’t need any specialized operating equipment or clean-up procedures. For businesses seeking to “green up” their operations, crushed walnut shells provide a cost-effective and eco-friendly solution. As long as you remove the rust and other debris from within the grit pile, there will be absolutely no loss of effectiveness or eco-friendly benefits from the repeated use of the shells.
Proximate Analysis of Walnut Shell for Blasting
| Cellulose | 40 – 60% |
| Lignin | 20 – 30% |
| Methoxyl | 6.50% |
| Nitrogen | 0.10% |
| Chlorine | 0.10% |
| Cutin | 1.00% |
| Toluene Solubility | 0.5 – 1.0 % |
| Ash | 1.50% |
Typical Properties of Walnut Shell for Blasting
| Specific Gravity | 1.2 to 1.4 |
| Bulk Density (lbs per ft3) | 40 – 50 |
| Mohs Scale | 4.5 – 5 |
| Free Moisture (80ºC for 15 hrs) | 3 – 9% |
| pH (in water) | 4 – 6 |
| Flash Point (closed cup) | 380º |
Granularity Grade of Walnut Shell for Blasting
| Grade | Mesh Size | Particle Size |
| Extra Coarse | 4/6 Mesh | 4.75 – 3.35 mm |
| Coarse | 6/10 Mesh | 3.35 – 2.00 mm |
| Coarse | 8/12 Mesh | 2.36 – 1.70 mm |
| Medium | 12/20 Mesh | 1.70 – 0.85 mm |
| Medium | 14/30 Mesh | 1.40 – 0.56 mm |
| Fine | 18/40 Mesh | 1.00 – 0.42 mm |
| Fine | 20/30 Mesh | 0.85 – 0.56 mm |
| Fine | 20/40 Mesh | 0.85 – 0.42 mm |
| Extra Fine | 35/60 Mesh | 0.50 – 0.25 mm |
| Extra Fine | 40/60 Mesh | 0.42 – 0.25 mm |
| Flour Grade | 40/100 Mesh | 425 – 150 micron |
| Flour Grade | 60/100 Mesh | 250 – 150 micron |
| Flour Grade | 60/200 Mesh | 250 – 75 micron |
| Flour Grade | -100 Mesh | 150 micron and finer |
| Flour Grade | -200 Mesh | 75 micron and finer |
| Flour Grade | -325 Mesh | 35 micron and finer |
Michael (verified owner) –
Very fast delivery.