{"product_id":"rock-tumbling-grit-220-grit-silicon-carbide","title":"Rock Tumbling Grit - Stage 2 Medium 220 Grit - Silicon Carbide","description":"\u003cp\u003eOur\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e220 grit silicon carbide\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eStage 2 medium tumbling grit for tumblers\u003c\/strong\u003e, used after coarse grinding to smooth out the scratches left by Stage 1, refine the shape of the stones, and prepare them for the finer stages ahead. If you want stones that are ready for pre-polish and final polish, this is the step that starts turning rough shaping into a smooth surface.\u003c\/p\u003e\n\u003cp\u003eA good polish does not come straight from coarse grit. Stage 2 is where the rough work begins to look clean and controlled.\u003c\/p\u003e\n\u003ch3\u003eWhat Stage 2 Grit Does\u003c\/h3\u003e\n\u003cp\u003eStage 2 is the smoothing stage. This medium grit helps:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRemove the heavy scratches left by Stage 1 coarse grit\u003c\/li\u003e\n\u003cli\u003eSmooth and refine the surface of the stones\u003c\/li\u003e\n\u003cli\u003eContinue shaping while leaving a finer finish\u003c\/li\u003e\n\u003cli\u003ePrepare rocks for Stage 3 fine grit and later polishing\u003c\/li\u003e\n\u003cli\u003eImprove surface quality before the final finishing stages\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis stage is what bridges the gap between rough shaping and a properly polished stone. If you move on too soon, scratches and roughness from earlier stages can carry all the way through the rest of the process.\u003c\/p\u003e\n\u003ch3\u003eBest For\u003c\/h3\u003e\n\u003cp\u003eUse this grit when you want to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMove on from Stage 1 after the rocks are properly shaped\u003c\/li\u003e\n\u003cli\u003eSmooth away coarse grinding marks\u003c\/li\u003e\n\u003cli\u003eRefine stones before fine grit and polish\u003c\/li\u003e\n\u003cli\u003eImprove surface texture after initial shaping\u003c\/li\u003e\n\u003cli\u003ePrepare a batch for the later finishing stages\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNot For\u003c\/h3\u003e\n\u003cp\u003eThis grit is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003enot\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInitial shaping of rough rock\u003c\/li\u003e\n\u003cli\u003eRemoving heavy rind or deep weathering\u003c\/li\u003e\n\u003cli\u003eFinal polishing\u003c\/li\u003e\n\u003cli\u003eQuick shine improvement\u003c\/li\u003e\n\u003cli\u003eVibratory finishing stages\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf your rocks still have major pits, deep cracks, sharp edges, or rough weathered surfaces, they usually need more time in Stage 1 before moving to this grit.\u003c\/p\u003e\n\u003ch3\u003eUse With Rotary or Vibratory Tumblers\u003c\/h3\u003e\n\u003cp\u003eThis grit can be used with rotary or vibratory tumblers.\u003c\/p\u003e\n\u003cp\u003eIf you are working through a full tumbling cycle, this is the second step before moving on to fine grit and polish.\u003c\/p\u003e\n\u003ch3\u003eHow to Use It\u003c\/h3\u003e\n\u003cp\u003eFor most rotary tumbler batches:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMake sure the rocks are fully cleaned after Stage 1 before starting Stage 2\u003c\/li\u003e\n\u003cli\u003eFill the barrel about\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e2\/3 to 3\/4 full\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAdd about\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1 tablespoon of grit per pound of rock\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAdd water until it is just visible among the top layer of stones\u003c\/li\u003e\n\u003cli\u003eRun the batch, then inspect the stones before moving to the next stage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBefore advancing, the rocks should feel noticeably smoother and no longer show the harsh surface scratches left by coarse grit.\u003c\/p\u003e\n\u003ch3\u003eHow Much Do You Need?\u003c\/h3\u003e\n\u003cp\u003eThe right size depends on how often you tumble and how many batches you run.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSample - 2 oz:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003egood for testing or very small batches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall Bottle - 8 oz:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003egood starter size for occasional tumbling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium Bottle - 16 oz:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ea solid all-around size for regular hobby use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Tub - 32 oz \/ 3 lb:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003egood value for frequent tumbling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk Bag - 10 lb or 25 lb:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eideal for heavy use, repeat batches, clubs, classrooms, or serious hobbyists\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMany tumblers use less Stage 2 than Stage 1, but it is still an essential part of getting a clean, polished result.\u003c\/p\u003e\n\u003ch3\u003eWhy Medium Grit Matters\u003c\/h3\u003e\n\u003cp\u003eStage 2 is what cleans up the damage left behind by coarse grinding.\u003c\/p\u003e\n\u003cp\u003eIf you skip it, or rush through it, scratches from Stage 1 can remain in the stones and show up later when you expected a smooth pre-polish surface. Fine grit and polish work best when the stones have already been properly refined.\u003c\/p\u003e","brand":"Rocks Canada","offers":[{"title":"Sample - 2 oz - 0.15 lb","offer_id":43747640508481,"sku":"RC-GRIT-220SC-02OZ","price":4.95,"currency_code":"CAD","in_stock":true},{"title":"Small Bottle - 8 oz - 0.75 lb","offer_id":43747640541249,"sku":"RC-GRIT-220SC-08OZ","price":13.95,"currency_code":"CAD","in_stock":true},{"title":"Medium Bottle - 16 oz - 1.5 lb","offer_id":43747640574017,"sku":"RC-GRIT-220SC-16OZ","price":17.95,"currency_code":"CAD","in_stock":true},{"title":"Large Tub - 32 oz - 3 lb","offer_id":43747640606785,"sku":"RC-GRIT-220SC-32OZ","price":29.95,"currency_code":"CAD","in_stock":true},{"title":"Bulk Bag - 10 lb","offer_id":43747640639553,"sku":"RC-GRIT-220SC-10LB","price":56.95,"currency_code":"CAD","in_stock":true},{"title":"Bulk Bag - 25 lb","offer_id":43747640672321,"sku":"RC-GRIT-220SC-25LB","price":124.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/6400\/9537\/files\/3lb_1c446cdd-1da2-4969-bab1-84f068a8edc3.png?v=1775671015","url":"https:\/\/rockscanada.ca\/products\/rock-tumbling-grit-220-grit-silicon-carbide","provider":"Rocks Canada by All-Star Telescope","version":"1.0","type":"link"}