Walnut shell grit is the hard fibrous product made from ground or crushed
walnut shells. When used as a blasting media, walnut shell grit is extremely
durable, angular and multi-faceted, yet is considered a 'soft abrasive'.
Walnut shell blasting grit is an excellent replacement for sand (free silica) to avoid inhalation health concerns.
Cleaning by walnut shell blasting is particularly effective where the surface of
the substrate under its coat of paint, dirt, grease, scale, carbon, etc. should
remain unchanged or otherwise unimpaired. Walnut shell grit can be used as a
soft aggregate in removing foreign matter or coatings from surfaces without
etching, scratching or marring cleaned areas.
When used with the right walnut shell blasting equipment, common blast cleaning
applications include stripping auto and truck panels, cleaning delicate molds,
jewelry polishing, armatures and electric motors prior to rewinding, deflashing
plastics and watch polishing. When used as a blast cleaning media, walnut shell
grit removes paint, flash, burrs and other flaws in plastic and rubber molding,
aluminum and zinc die-casting and electronics industries. Walnut shell can
replace sand in paint removal, graffiti removal and general cleaning in
restoration of buildings, bridges and outdoor statuaries. Walnut shell is also
used to clean aircraft engines and steam turbines.
| Walnut Shell Grit Specifications | |
| Grade | Mesh |
| Extra Coarse | 4/6 (4.75-3.35 mm) |
| Coarse | 6/10 (3.35-2.00 mm) |
| 8/12 (2.36-1.70 mm) | |
| Medium | 12/20 (1.70-0.85 mm) |
| 14/30 (1.40-0.56 mm) | |
| Fine | 18/40 (1.00-0.42 mm) |
| 20/30 (0.85-0.56 mm) | |
| 20/40 (0.85-0.42 mm) | |
| Extra Fine | 35/60 (0.50-0.25 mm) |
| 40/60 (0.42-0.25 mm) | |
| Flour | 40/100 (425-150 micron) |
| 60/100 (250-150 micron) | |
| 60/200 (250-75 micron) | |
| -100 (150 micron and finer) | |
| -200 (75 micron and finer) | |
| -325 (35 micron and finer) | |
| Product name | Proximate Analysis | Typical Properties | ||||||||
| Walnut Shell Grit | Cellulose | Lignin | Methoxyl | Nitrogen | Chlorine | Cutin | Toluene Solubility | Ash | Specific Gravity | 1.2 to 1.4 |
| 40 - 60% | 20 - 30% | 6.5% | 0.1% | 0.1% | 1.0% | 0.5 – 1.0 % | 1.5% | Bulk Density (lbs per ft3) | 40 - 50 | |
| Mohs Scale | 4.5 – 5 | |||||||||
| Free Moisure (80ºC for 15 hrs) | 3 – 9% | |||||||||
| pH (in water) | 4-6 | |||||||||
| Flash Point (closed cup) | 380º | |||||||||
Please fill in the following form to contact us
2005-2024 © All Rights Reserved.JINAN JUNDA INDUSTRIAL TECHNOLOFY CO.,LTD