Copper Oxide 100g

Used this product for the first time today and experimented with it, so impressed with the results and the ease of using the powder. Others have said it already, use thin sprinkles and you'll get lovely blue bubbles.

Not sure if this powder was the reason but I added some copper foil elements as an inclusion too and they went a gorgeous metallic blue whereas it usually turns a rusty red. Gorgeous!

I struggled to get the right effect until I mixed one part copper oxide with 6 parts clear frit powder. I sprayed the base glass with hairspray, sifted the powder mix on and topped with top glass; perfect every time.

Received a sample of this with my last order, did a test tile, and all I can say is WOW fantastic results - just ordered a pot!

For a deeper blue (rather than turquoise) add a SMALL amount of cobalt oxide. Now that Warm Glass are delving into "hot clay" products, maybe they'll add cobalt oxide. Hint.

This product is one of my favourite with my students. we mix a small amount with water and sponge it onto the glass in a very fine layer before sandwiching. Brilliant for sea scenes and always a winner.

Fabulous value for money, with endless design possibilities- the trick is to mix it the same way as traditional glass paints; a little bit of water and ideally a bit of gum arabic powder to ensure it sticks to the glass. Thinner coating= smaller bubbles.

Blown away by this powder, played and played until I could control the effect and then started playing again ! Small amount goes so so far so it is worth every penny. Do buy this, you will not regret it !

I've just discovered this stuff, and it is amazing. I'm experimenting with it and getting some amazing effects! I'm delighted with my Skutt 14 kiln as well.

I like to use this with medium frit in moulds. Can be a pain to remove if you spill it anywhere and requires a bit of testing in order to get the effect you want (less is more, really).



Pretty blue bubbles for a fraction of the cost of bubble paints - the tub will last forever.

Great product. I looked for some guidance on how much to use - but it is partly down to desired outcome. For anyone else looking for guidance, I used a small mesh sieve and sprinkled from a height the same sort of amount you would use when dusting a cake with icing sugar (remember to wear a mask). Produced lots of small bubbles with a good density.

I mostly mix this with glastac and apply with a brush between glass layers. Try varying the amount applied, brush strokes and firing temperature for subtly different effects. Also try with dichro beneath. Do not apply too thickly or you get mucky looking smudge marks. Customers love the beautiful coloured bubbles. So do I.