{"product_id":"walnut-shell-blasting-media","title":"Walnut Shell Blasting Media - Soft, Non-Damaging Industrial Abrasive 45 lb box","description":"\u003cp\u003eWalnut shell is a soft abrasive, often used for de flashing, deburring, and finishing operations, as well as filler and extender applications.\u003c\/p\u003e\n\u003cp data-start=\"1279\" data-end=\"1357\"\u003e\u003cstrong data-start=\"1279\" data-end=\"1357\"\u003eWhy Choose Walnut Shell Blasting Media Over Aluminum Oxide or Glass Beads?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1359\" data-end=\"1404\"\u003eWalnut shell abrasive is ideal when you need:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1408\" data-end=\"1451\"\u003e✔ Surface cleaning without profile change\u003c\/li\u003e\n\u003cli data-start=\"1454\" data-end=\"1499\"\u003e✔ Paint stripping without substrate etching\u003c\/li\u003e\n\u003cli data-start=\"1502\" data-end=\"1537\"\u003e✔ Aircraft and aerospace cleaning\u003c\/li\u003e\n\u003cli data-start=\"1540\" data-end=\"1576\"\u003e✔ Automotive mold and die cleaning\u003c\/li\u003e\n\u003cli data-start=\"1579\" data-end=\"1599\"\u003e✔ Graffiti removal\u003c\/li\u003e\n\u003cli data-start=\"1602\" data-end=\"1642\"\u003e✔ Composite and fiberglass preparation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1644\" data-end=\"1791\"\u003eUnlike aggressive media such as aluminum oxide or silicon carbide, walnut shell \u003cstrong data-start=\"1724\" data-end=\"1790\"\u003ewill not warp, pit, or erode soft metals and delicate surfaces\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"1793\" data-end=\"1833\"\u003eIt removes coatings — not base material.\u003c\/p\u003e\n\u003cdiv\u003e\u003cstrong\u003eQualities of Walnut Shell:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eSoft, will not cause pitting (excellent for jet engine parts, turbines, pistons, etc.) \u003c\/li\u003e\n\u003cli\u003eWalnut Shell will likely leave no profile on steel. It is far less abrasive than other sandblasting medias, such as crushed glass or copper slag.  It can leave a profile on soft substrates such as aluminum, copper, brass in coarse sizes such as the 12\/20 and 8\/12.\u003c\/li\u003e\n\u003cli\u003eExcellent for de-flashing and de-burring\u003c\/li\u003e\n\u003cli\u003eExcellent for wheel blasting, air blasting, and tumbling, graffiti removal, steam turbines, mold cleaning, engine clean-outs, log home blasting, boat blasting\u003c\/li\u003e\n\u003cli\u003eNo risk of Silicosis\u003c\/li\u003e\n\u003cli\u003eMohs Hardness: 3.5 = Rockwell 91 = Brinell 190\u003c\/li\u003e\n\u003cli\u003eLong Lasting\u003c\/li\u003e\n\u003cli\u003eOil and Water Resistant\u003c\/li\u003e\n\u003cli\u003eBiodegradable\u003c\/li\u003e\n\u003cli\u003eRe-Useable\u003c\/li\u003e\n\u003cli\u003eAllows for preservation of base\/primer, while removing top layers of paint (excellent for air craft carriers, submarines, boats.)  \u003c\/li\u003e\n\u003cli\u003eAngular and multi-faceted\u003c\/li\u003e\n\u003cli\u003eFlash Point:  380 degrees F\u003c\/li\u003e\n\u003cli\u003eCharring Temp.:  470 degrees F\u003c\/li\u003e\n\u003cli\u003ePH at 25 degrees C in neutral H2O:  4-6\u003c\/li\u003e\n\u003cli\u003eFree Moisture @ 80 degrees C, 15 HRS:  3-11%\u003c\/li\u003e\n\u003cli\u003eSpecific Gravity: 1.2-1.4\u003c\/li\u003e\n\u003cli\u003eDry Packing Density:  22-53 lbs.\/cu.ft.\u003c\/li\u003e\n\u003cli\u003eWalnut shell flour and filler sizes also available.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eShipping:  Usually sold by the pallet or 2,000 lbs.  \u003c\/strong\u003e(40, 50lb bags.)  Please \u003ca href=\"http:\/\/sandblastingabrasives.com\/help.php?section=contactus\u0026amp;mode=update\"\u003eemail us for a custom freight quotation\u003c\/a\u003e on orders over 250 lbs. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e50 lb bags, 40 bags per pallet. 2,000 lbs per pallet.\u003c\/li\u003e\n\u003cli\u003eMinimum Order:  500 lbs or 10 bags on a pallet.   You can, however, buy single 45lb bags off this page.  \u003cstrong\u003eNOTE:  Single bags are now 45 lbs!  We are no longer shipping single 50 lb orders, due to UPS charging large fees for packages that weigh over 50 lbs.  \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e2,000 lbs super sacks also available, one sack per pallet.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTips:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMedia consumption will vary dramatically depending the user's job, but 2# per cubic foot is a decent ballpark number to go by.  This is not a guarantee or an absolute, as the actual number will tie in with blasting pressure, substrate and toughness of the coating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eIt is always recommended to start with a low pressure and work it up as needed.  Actual pressure will be related to the substrate and how much damage you want done to it, if any.  For general aggressive sandblasting, a 80-100 psi at nozzle is common.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eConsumption:  When blasting metal - 5-10lbs per sq. ft. is a good place to start.  Other applications will run you much less, around 1-2 lbs per sq ft. \u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eAnti-Slip Applications Consumption Rates:  Varies dramatically, but a good ballpark is to figure 5-10 lbs per square foot of area.  When mixing it directly into a paint or coating, use 2lbs per 5 gallons of paint as a start. \u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eAny grit size is suitable for blasting metal.  If there are grooves and fine areas, you will need a finer media to get into them.  If it's a flat surface, the larger the better (metal substrates only).\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eIf you want to do more than remove a coating, and want to effect the substrate, then going to a coarser size than normal would be the best place to start.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eCosmetic walnut shell is not sterilized, you will have to do this yourself.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003eBlasting Brick:  Pay attention to the condition of the mortar!  Walnut usually does an effective job of removing paint from brick without damage, but if the mortar is in poor condition, it may be too aggressive and will pit\/damage the mortar.  Use a finer size in this case, and adjust your pressure.\u003c\/li\u003e\n\u003cli\u003eBlasting Boat Hulls:   If it's a steel hull, a 12\/20 should work fine.  If it's wood or fiberglass, you will want to use a smaller size, even as low as 30\/100 if it's delicate.  Start with low pressure and work your way up if needed.\u003c\/li\u003e\n\u003cli\u003eBlasting Log Homes:  A 3060 Black Walnut is preferred by most people, although a 2030 can be used also.  Black Walnut will leave less scarring and pitting on the logs because the shell is a bit thicker than English walnut.  If what you want to remove has good adhesion, and\/or multiple coats of paint, then the coarser 2030 would be preferred.  Just know you can overdo the 2030, which can eat into the logs if your coating is thin and easy to remove.  Start with a lower pressure and increase it as needed.\u003c\/li\u003e\n\u003cli\u003eCleaning carbon build up in direct injection engines:  Try the 18\/40 (500 lbs is minimum order for this size).  \u003ca href=\"http:\/\/sandblastingabrasives.com\/help.php?section=contactus\u0026amp;mode=update\"\u003e\u003cstrong\u003eRequest A Quote Now\u003c\/strong\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eSome government jobs and oil field drilling applications will require black walnut.  Ditto on some oil filter applications.  \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eEnglish Walnut Shell vs Black Walnut Shell, for blasting applications.  What is the difference? \u003c\/strong\u003e Black walnut shell is thicker and harder, so in larger grade sizes, it will appear rounder than english walnut.  You will see less pitting and scarring when blasting wood (such as a log home) when using Black Walnut Shell because it is rounder.  English walnut shell is more lightweight, has a thinner shell, and contains a lot more pith or membrane.  However, for those of us using it for sandblasting, either will work just fine for you. \u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eGrades Available For Purchase - depending on the shipping origin:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e6\/10\u003c\/li\u003e\n\u003cli\u003e8\/12\u003c\/li\u003e\n\u003cli\u003e12\/20  (NOT available in Black any longer.  This item is English only)\u003c\/li\u003e\n\u003cli\u003e20\/30\u003c\/li\u003e\n\u003cli\u003e18\/40 (used to polish brass gun shell casings, or corn cob 14\/20)  This size also used for log home\/wood blasting\u003c\/li\u003e\n\u003cli\u003e35\/60 -  A 3060 \u003cspan style=\"text-decoration: underline;\"\u003eBlack\u003c\/span\u003e Walnut IS NO LONGER AVAILABLE, English 35\/60 is the substitution. \u003c\/li\u003e\n\u003cli\u003e30\/100 - mainly a flour\u003c\/li\u003e\n\u003cli\u003e40\/100 Flour\u003c\/li\u003e\n\u003cli\u003e60\/200 Flour\u003c\/li\u003e\n\u003cli\u003e-100 Filler\u003c\/li\u003e\n\u003cli\u003e-200 Filler\u003c\/li\u003e\n\u003cli\u003e-325 Filler\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePh:  4 to 5 at 25 degrees Celcius\u003c\/li\u003e\n\u003cli\u003eTypical Packaging:  45 lb bag or by net ton in 50 lb bags (2,000lbs per pallet)\u003c\/li\u003e\n\u003cli\u003eShipping Point:  East Coast, West Coast, and Chicago\u003c\/li\u003e\n\u003cli\u003eNMF Classification:  Class 55, Item 175480\u003c\/li\u003e\n\u003cli\u003eColor:  Light Brown\u003c\/li\u003e\n\u003cli\u003eHazardous?  No\u003c\/li\u003e\n\u003cli\u003eDisposal:  According to Federal, State, Local regulations\u003c\/li\u003e\n\u003cli\u003eSterilization:  No, media is not sterile\u003c\/li\u003e\n\u003cli\u003eGrain Shape:  Appears granular or powdery depending on grade\u003c\/li\u003e\n\u003cli\u003eSpecific Gravity:  1.2 - 1.35 (Walnut Shell)\u003c\/li\u003e\n\u003cli\u003eMinimum Order Quantity:  2000 lbs, 40, 50lb bags minimum order.  Or you can order a 45lb box at top of this page.\u003c\/li\u003e\n\u003cli\u003eType:  English (Black walnut is available upon request)\u003c\/li\u003e\n\u003cli\u003eBulk Density:  Approximately 40 lbs per cubic ft., varies by grade\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003ca href=\"http:\/\/sandblastingabrasives.com\/help.php?section=contactus\u0026amp;mode=update\"\u003e\u003cstrong\u003eRequest A Quote Now\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Sandblastingabrasives.com","offers":[{"title":"Black Walnut 6\/10","offer_id":44852438237373,"sku":"BlackWalnut 6\/10","price":45.0,"currency_code":"USD","in_stock":true},{"title":"Black Walnut  8\/12","offer_id":44852438040765,"sku":"BlackWalnut 8\/12","price":45.0,"currency_code":"USD","in_stock":true},{"title":"English Walnut 12\/20","offer_id":44852438073533,"sku":"EnglishWalnut 12\/20","price":45.0,"currency_code":"USD","in_stock":true},{"title":"Corn Cob 20\/40","offer_id":44860257763517,"sku":"CornCob 2040","price":45.0,"currency_code":"USD","in_stock":true},{"title":"Black Walnut  20\/30","offer_id":44852438204605,"sku":"BlackWalnut 20\/30","price":45.0,"currency_code":"USD","in_stock":true},{"title":"Black Walnut  -30","offer_id":44852438106301,"sku":"BlackWalnut -30","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/6871\/1357\/files\/English_Walnut_Shell_610.812.1840.jpg?v=1742912555","url":"https:\/\/sandblastingabrasives.com\/products\/walnut-shell-blasting-media","provider":"Sandblastingabrasives.com","version":"1.0","type":"link"}