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Lampwork => COE 104 => Topic started by: Creative Seed on October 31, 2013, 02:04:57 PM

Title: Discoloured glass
Post by: Creative Seed on October 31, 2013, 02:04:57 PM
Hi Everyone

I have just bought my first lampwork kit, running single gas propane....I am starting to melt my first rods and they are quite discoloured, smokey? is this my torch or gas setting or something?
Title: Re: Discoloured glass
Post by: flame n fuse on October 31, 2013, 04:23:08 PM
what torch are you using?
what colour is the flame?
if the flame is yellow, can you adjust it (allow more air) to make the flame less yellow and more blue?
Title: Re: Discoloured glass
Post by: Dragonfire Glass on October 31, 2013, 05:30:32 PM
What colours are you using?
Some colours, turquoise springs to mind, can discolour in the flame - the colour can be brought back by soaking in Cilit Bang Lime and Grime.
Title: Re: Discoloured glass
Post by: Creative Seed on November 01, 2013, 09:23:58 AM
Thanks Guys, my flame is blue, I am using a Propane torch like the Hot Head
Title: Re: Discoloured glass
Post by: Shirley on November 01, 2013, 09:30:38 AM
So it isn't actually a hothead? Is it designed for glassworking? The reason I'm asking is because the torches that are designed for glassworking have been made to pull more air through and create a better propane/air mix. If there is too much propane then your glass can discolour.

Try melting the glass further out in the flame, away from the body of the torch. I would suggest digging out the turquoise or rubino as these are probably the two that will show the dirtiness most quickly, developing a silvery sheen.

Other possibilities are a bad batch of gas, or a tank that is getting empty and is dragging up the dirt from the bottom.