how much do you put in a 1 lb Tumbler barrel?

You would add 2 tablespoons per lb. of rock for both Stages 1 and Stage 2 (that is shown). Steps 3 and 4 will require 1 tablespoon per lb. of rock.

Is this good for etching glass? Has anyone tried it on glass?

Yes, it will work for tumbling glass. Using Step 2 will give a matte finish. Tumbler for a couple of days and check if are happy with the finish. You may have to tumble a couple more days to get the effect you like. To get a more clear look, continue with Step 3 grit (500 grit) and then possibly on to Step 4 (aluminum oxide).

Is it 6 table spoons of grit for 3 pouns of rock? The video doesn't show them putting that amount in

Yes. We recommend 2 tbs per lb of rock for steps 1 and 2. 1 tbs per lb of rock for step 3 and then 1.5 tbs per lb of rock for step 4.

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Polly Plastics Polly Plastics Rock Tumbler Media Grit Refill, 2 lb Medium 180/220 Silicone Carbide Grit, Stage 2 for Tumbling Stones (2 Pack)

Product ID: 650247109

Details

Brand
Polly Plastics
Grit Number
220
Item Weight
2.1 Pounds
Item dimensions L x W x H
15.2 x 15.2 x
Material
carbide

🔄Universal compatibility with all major rock tumblers

⚙️2 lb Medium 180/220 Silicon Carbide Grit

🇺🇸Made in USA with premium sourced materials

Description

💎 Elevate your rock tumbling game with pro-grade grit!

UNIVERSAL FIT - Works seamlessly with Elenco, Lortone, Smithsonian & more
BEGINNER APPROVED - 100% satisfaction guarantee for confident tumbling
MESS FREE STORAGE - Durable, reusable jars keep grit fresh and spills at bay
CRAFTED IN THE USA - Quality-controlled grit made with American materials
PRECISION STAGE 2 GRIT - Medium 180/220 silicon carbide for flawless stone smoothing

Polly Plastics Rock Tumbler Media Grit Refill offers 2 lbs of premium Medium 180/220 silicon carbide grit, designed as Stage 2 in a 4-step tumbling process. Compatible with all major rock tumblers, it comes in durable reusable jars to prevent spills and ensure easy storage. Made in the USA with high-quality materials, this grit guarantees smooth, professional results and is backed by a 100% satisfaction guarantee—perfect for both beginners and seasoned hobbyists.

Specifications

ASIN	B07P2N3V53
Brand Name	Polly Plastics
Country of Origin	USA
Customer Reviews	4.7 4.7 out of 5 stars (381)
Grit Number	220
Importer Contact Information	ATM RETAIL 1st Floor Beside P and T Building Lakdi Ka Pul Hyderabad Telangana 500004
Item Dimensions	15.2 x 15.2 x 6.4 Centimeters
Item Weight	2.1 Pounds
Manufacturer	Polly Plastics
Material Type	carbide Silicone
Model Number	3405246831
Part Number	3405246831

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