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Item # 1228, Ground English 12/20 Blast Walnut Shells



Walnut Shell is used as an abrasive blast media similar to sand for cleaning, but without the negativities associated with other abrasive materials. In many typical cleaning applications the substrate is metal, fiberglass, wood, plastic or stone. Walnut shell can be utilized without scratching or pitting the substrate material / underlying surface. The walnut shell is ground to various sizes from coarse to extra fine depending on the application. Walnut shell does not cause silicosis, a harmful lung condition associated with the use of other blast media. Suggested Sizes are 8/12, 4/6, 12/20, 14/30, 18/40, 20/40, 40/60, 40/100.




Technical Data  · Specifications  · Typical Properties  · Chemical

Technical Data

Rotap Duration

3 min

Grade

12/20

Gross Sample Weight

0.00 g

Sample by Weight over 12 Screen Size

5 %

Maximum Sample by Weight at 12 Screen Size

40 %

Maximum Sample by Weight at 16 Screen Size

60 %

Maximum Sample by Weight at 20 Screen Size

20 %

Maximum Sample by Weight under 20 Screen Size

5 %

Captured Sample

100.00 %


Specifications

Suggested Sizes

4/16
40/100

18/40

14/30

20/40

12/20

40/60

8/12


Typical Properties

Specific Gravity

1.2 to 1.4

pH Value @ 25 ºC (in Water)

4 to 6

Free Moisture (80 ºC for 15 hrs)

3 to 9 %

Flash Point (Closed Cup)

380 º

Hardness - Vickers No

25 to 30

MOHS Scale

3 to 4

Dry Packing Density

22 to 44 lb/ft³


Chemical

Nitrogen

0.10

Cellulose

40/60

Lignin

20/30

Toluene Solubility

0.5/1.0

Methoxyl

6.5

Chlorine

0.10

Ash

1.5

Cutin

1.0


 MORE IMAGES 

·  Product Curve of Ground English 12/20 Blast Walnut Shells


 DOWNLOADS 

Walnut Shell Applications Particle Size Guide
(PDF, 105KB)

Ground English 12/20 Blast Walnut Shells Technical Data Sheet
(PDF, 480KB)

Walnut Shell Material Safety Data Sheet
(PDF, 263KB)