Tonic Glass Alchemy Rod COE 33 Borosilicate Glass

Tonic Glass Alchemy Rod COE 33 Borosilicate Glass
  • SKU:  660490
  • Brand: Glass Alchemy
  • $50.00

Sold in Increments of 0.25


660490 Glass Alchemy Tonic Borosilicate Glass Rods.

Size: Diameter 7mm, length 20". There is a 1/4 pound minimum per color. All Glass Alchemy rods are first quality. 

Tonic has a vintage glass look and is a younger sibling of Rain Drop.  For best results, this crisp, high index color should be used in a neutral flame.

Working tip: Work neutral to oxidizing for best results.  A reducing flame will cause red streaking.

Artist Description by Mike Shelbo:

Tonic is a transparent blue, the color of an aquamarine gem.  The color becomes more vibrant and its higher refractive index shows when used with itself in applications that allow the tonic layer to be a thick as possible.

I often recommend a thin layer of clear frit over Tonic or evenly coated clear rod over your entire prep.  I have used Tonic without encasement many times on solid sculpture and had good results, but I have seen a warming or flashing flame haze up a section.  working tonic in as close to a neutral flame and away from the face of your torch is wise and will get you the best results with the color.


ATTENTION: Due to the weight and length of the rods you may receive .30 pound vs .25 pound (as an example) when ordering. This will cause the cost to rise and the amount you expect to pay for your glass may change

If this is a problem, please let us know and we will “under weigh” your glass. This means instead of .25 pound you may receive .20 to .22 pound. Please be aware that it is almost impossible to pull exactly .25 pound. We will always try our best to get as close as possible to the weight that is ordered, but due to the factors stated, these weights may substantially increase the total cost of your order.

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