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I'm searching for a truly clear DLP resin which can polymerize between 400nm and 405nm.

I found the unpigmented from FunToDo, but it seems to be yellow-clear:

enter image description here

I'm trying to achieve something similar to this:

enter image description here

Is there any resin out there which costs likely the same (about 50€/liter) which will give results like this?

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Formlabs sells a completely clear resin that they've even made simple lenses from, but it's about $150 for a liter. I have no idea how well it would work with your DLP setup. Looks amazing in the pictures though.

MatterHackers sells PhotoCentric UV Firm Clear for $90 for a liter as well. It's not quite as easy finding pictures of this stuff, but from what it looks like, it's still pretty decent. Assuming you've got a UV DLP

Disclaimer, the PhotoCentric stuff says it's a UV resin (10nm to 400nm IIRC) and I have not the slightest clue what Formlabs designs their resin for, so YMMV.

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