On 31/01/2011 16:54, toneboy22 wrote:
> I've been using lacquer thinner since forever! for removing the toner resist from my pcbs. Although ALL lacquer paint is banned from california, lacquer THINNER is sold everywhere: homedepot, lowes, automotive paint stores. Use a clean rag and moisten it with lacquer thinner, then scrup/swipe the toner. It melts! away. Use clean portion of rag to wipe again checking for black. When ALL black is gone, rag doesn't turn black, pcb should be clean. I use latex gloves(nitril works too) because lacquer thinner drys out the skin VERY quickly. Also, do this OUTSIDE as the fumes will kill U AND are EXTREMELY flammable. Leave rag outside so smell can evaporate before U puting in trash, or save for next pcb run if enough area is still clean. Use 220 grit sand paper to shine up coppper before soldering. Happy etching!!
Lacquer thinners is xylene, it's quite safe.
Leon
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Leon Heller
G1HSM