I received some information from RelTek about their products :
"The B-45 and B-482 are possibilities. You mentioned that the reservoir might need to be dipped; the two epoxies are simular viscosity to honey, which makes it fairly easy to pour into a container and dip your parts in to coat...
I agree that a change in material may be the best choice. That is looking like the conclusion. But I now have a better idea of why it is a good conclusion, thanks.
Pat, if you wouldn't mind, I'd like to understand why the Teflon S is not suitable. It seems teflon is used as a post-treatment for...
Ah yes, you did suggest a urethane varnish earlier, thanks. There I was thinking I had a brilliant idea :)
The problem of staining raised by Pat calmed my enthusiasm for the urethane.
I found a paper discussing coating nylon substrates by sol-gel I'll mention it here for completeness...
Another angle that I hope someone can shed some light on is a polyurethane coating. This seems to be used to seal nylon for tents etc. Could this be applied in a dip process ?
Hi Pat, we want to use a 3D printing service, so we will not have control over the mix for the material. The choices are still fairly limited for this production technique.
The particular type of 3D printing we are looking into is SLS where very small particles are laser sintered.
Nylon...
Sorry for the delay in my reply. I'm in France so the timezone is perhaps not helping.
The entire ink tank (including the structure of the tank) is 3D printed in nylon.
What do you think about a teflon coating - would that bond well to the nylon ?
Regards,
Mark
The main reason we would like to use nylon is because it is one of the cheapest 3D printing materials offering a high level of definition.
On another project I got a quote from Stratasys (a few days ago) using FDM that was about 4 times higher than the quote from Shapeways using SLS.
But...
Some 3D parts services will dye the parts. This is perhaps going to reduce the problem. But I am not aware of any 3D printing service offering other treatments.
I've stumbled across information related to "stain blockers for nylon" These techniques are widely use din the carpet industry.
I...
Thanks very much for the rapid reply.
The surface is porous and the ink does soak into the gross porosity. It would be great to find a coating but I have not had any luck up until now. The ink reservoir would need to be coated using a dipping process I think.
Conditioning the nylon is...
Hello,
We would like to use nylon to hold ink. This is part of a pen that is being 3d printed in nylon 12.
Is there a post production technique that we could use to stop the nylon absorbing the ink ?
Thanks for any pointers !
