http://www.shapeways.com/forum/index.php Shapeways: Bring your creativity to life in 3D http://www.shapeways.com/forum/index.php?t=rview&goto=52237&th=10421#msg_52237
Has anyone experienced this problem of the dye running off the part during heavy perspiring/exercising?

I have a bracelet that is made out of WSF that I dyed black. When I run it under cold water and scrub it with soap very heavily, the dye stays on and no residual comes off.

However, when wearing the piece today I noticed that the dye was coming off and some residual was bleeding onto my skin during a workout session. Does anyone know how to solve this?

I tried scrubbing any excess dye off and no luck with that.

Would using a high grade automotive dye in the future work better? Any quick way to seal the model without affecting the nice matte finish that I have right now? Do I just need to scrub the model even harder to get any residual dye off?

I think it is a chemical reaction more than a physical bond of the dye to the part. The reason why i think this is because I can douse the part in water and try to scrub it off with an abrasive pad and it doesn't come off. It only comes off if I'm sweating/perspiring...probably has to do with body oils and acidity in skin? ]]> john.mauriello 2012-08-02T15:00:05-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=52726&th=10421#msg_52726
Have you found any info on the reaction between sweat /dye since you posted? I use Dylon Universal Dye, and am waiting to hear back from them (Dylon not shapeways) on a similar topic. Will post when if i hear anything.

What dye do you use? I know Dylon isn't colourfast but I have never had a problem with sweat. i am testing my products none the less. So far no dye has bled (Almost a week of constant wearing), but the items don't locate to an area that is prone to sweating. So the test is a bit flawed

Regards
Piers]]> pdb 2012-08-16T18:07:44-00:00