Custom power DC supply

[Swarfing]

Careful the drain cleaner stuff is quite diluted. Go to a motor factor and ask for motorcycle top up acid. You can get it 1 litre bottles for a couple of quid. If you want more take a friend as they sometimes limit you to 1 per customer. i have 6 litres sat on my kitchen floor waiting for me to finish something worth anodising? caustic soda you can ask the local shop to get you some on their next trip to the cash and carry (do that part outside for god sake,,,fumes, fumes, fumes). Dylon dyes work better than the others (not the one you put in the washing machine). Hope this helps

[Jonathan]

Careful the drain cleaner stuff is quite diluted. Go to a motor factor and ask for motorcycle top up acid. You can get it 1 litre bottles for a couple of quid. If you want more take a friend as they sometimes limit you to 1 per customer. i have 6 litres sat on my kitchen floor waiting for me to finish something worth anodising? caustic soda you can ask the local shop to get you some on their next trip to the cash and carry (do that part outside for god sake,,,fumes, fumes, fumes). Dylon dyes work better than the others (not the one you put in the washing machine). Hope this helps

I'm afraid I have to disagree. The one shot drain cleaner I mentioned is concentrated, 91% sulphuric acid. I don't call that dilute! I also got caustic soda cheap from B&Q. Those are about the only things I'll buy from that shop :lol:

As for the dye I've only used the anodising dye sold on eBay. I found that the red dye I got faded with direct sunlight on my wind turbine - other than that they're fine.