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... UV-resin shelf-life more than 10 years !!

Posted by VDX 
VDX
... UV-resin shelf-life more than 10 years !!
October 30, 2019 05:01PM
Hi all,

some 10+ years ago I've received a bottle of experimental UV-resin from Fernando (spota) -- found the bottle in the basement and it was still fluid.

So tested it with "standard setting", same as for a common white resin (in the last image) -- looks like perfect prints! ... after 10 years in the basement (with broken cap) smileys with beer




... here the white resin (with a printing error):



Edited 1 time(s). Last edit at 10/31/2019 04:43AM by VDX.


Viktor
--------
Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]

Call for the project "garbage-free seas" - [reprap.org]
VDX
Re: ... UV-resin shelf-life more than 10 years !!
October 31, 2019 04:45AM
... this clear resin needs some percents more UV-curing time per slice than the white one -- not all fine details survived:




Viktor
--------
Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]

Call for the project "garbage-free seas" - [reprap.org]
Re: ... UV-resin shelf-life more than 10 years !!
November 13, 2019 02:01PM
That's really impressive, it's the first time i've seen photos of a printed object with handmade UV-resin

I remember reading many times that post
As Fernando (spota) says in this Link (2008) the chemicals and recipe are:

Per 100g of UV-curing resin:
3g of Benzil CAS: 134-81-6
1g of Benzoilisobutylether (BIsoBE) CAS: 119-61-9
1g of MDEA CAS: 105-59-9
0.5g of EDTA (CAS: 60-00-4, 150-43-6) or 0.1g of Hydrochinone (CAS: 123-31-9)
complete to 100g with Polyester resin.

I've put CAS numbers on last two.

First i need to start building my FDM printer before an incursion into SLA, but i'm afraid that i'm not sure that i can get all the chemicals here (Argentina) i need to send some emails to suppliers before trying.

Also This comment says something about buying from hong kong these chemicals, i wonder if someone tried that
VDX
Re: ... UV-resin shelf-life more than 10 years !!
November 13, 2019 02:41PM
... search at Amazon for "elegoo resin" -- should be much easier ...


Viktor
--------
Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]

Call for the project "garbage-free seas" - [reprap.org]
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