Clear resin turning yellow......Any ideas?
- Thread starter jhusel
- Start date
00MrNotWrong00
Sr Member
Please post pictures
Cleat resins do have a tendency to yellow as they are exposed to UV light, air, etc. Clear coats can protect/slow the process down, but they have to be applied to the piece at the beginning (not sure if it would prevent further yellowing at this point).
I've also seen some clear resins start to get sticky after a while. Not sure if this is due to a chemical breakdown of the resin itself, or just because of contact with air, UV, etc. That can be cleaned off.
but, yeah, we need some pics to see what it is.....
Gene
I've also seen some clear resins start to get sticky after a while. Not sure if this is due to a chemical breakdown of the resin itself, or just because of contact with air, UV, etc. That can be cleaned off.
but, yeah, we need some pics to see what it is.....
Gene
Rebelscum
Sr Member
In my clear casting research lately resins are subject to UV discoloration and there's nothing you can do other than not let UV light on them. If you tint it to make a transcuscent piece, you probably can't tell it *yellows*, but there's nothing you can do about clear.
You can use urethane plastic that is UV resistant.
You can use urethane plastic that is UV resistant.
xeno
Sr Member
the biggest culprit is UV, but most forget that plastics can be severely influenced by acidic vapours from paints wood and such, and also oxygen is not good for plastics.
if you want to keep it really safe you need to seal it in special UV protecting and acidic free plastic bag and throw some oxygen eating bags in there.
.
if you want to keep it really safe you need to seal it in special UV protecting and acidic free plastic bag and throw some oxygen eating bags in there.
.
Great_Bizarro
Sr Member
Fluorescent lights put off a large amount of uv that is harmful to plastics/resins.
Interesting. It is actually my Cage Communicator. It isn't terrible, but enough that I'd like to do something about it. I've never had it in sunlight or under flourescent bulbs. It is in my display room (with no windows) and 4 "spotlight type" bulbs on a dimmer. I don't know what kind of resin was used, possibly epoxy resin (that I hear will turn yellow), but I don't know that either. I was hoping maybe a chemical or buffing compound would help.
jhusel
jhusel
robn1
Master Member
Polishing certainly wouldn't hurt any, give it a try. But if the discoloration goes all through the material it won't help.
Hey. it all depends on the epoxy resin that you get. Epoxy resin can be formulated to protect against UV light. Unfortunately, NOTHING on this planet is safe from UV light!
ArtResin has high quality UV stabilizers originally from Germany, and an additional (and exciting) new additive called 'HALS' (wiki it if you're a nerd!).
Basically, these additives fill up the chemical chains during the reaction when you mix the two parts together, leaving less open spots in the chain that are reactive that UV light could grab onto and alter. (In simple terms)
We tested ArtResin for 6 months out in the Texas sun and compared it with EX74 and Envirotex Lite, 2 of the leading resins on the market. Our product clearly outperformed those two, however it did yellow--as we expected--due to being subjected to undesirable conditions (no epoxy resin is EVER recommended to be in UV light). After these tests, we added that additional UV stabilizer called HALS for extra yellowing protection.
ArtResin is the best by far that I have tested and seen. I have been trying to solve the yellowing of Epoxy Resin since 2008!
In all transparency, this product is too new for me to have years worth of evidence to share with you. We remain very confident however because of our initial test results, plus the added HALS. Even in the bottle, the resin and hardener are clearer than any sample we've ever concocted or tried from chemists around the world. We continue to run tests and will publish these results online when they become available, and at regular intervals (i.e. 1 year test results, 18 months, 2 year, 2.5 year.. etc).
Happy to chat or answer any questions. Do check out ArtResin.
Polishing won't help. It is not just surface color change.
UV top coats will need to be reapplied every 2-3 months to be effective.
ArtResin has high quality UV stabilizers originally from Germany, and an additional (and exciting) new additive called 'HALS' (wiki it if you're a nerd!).
Basically, these additives fill up the chemical chains during the reaction when you mix the two parts together, leaving less open spots in the chain that are reactive that UV light could grab onto and alter. (In simple terms)
We tested ArtResin for 6 months out in the Texas sun and compared it with EX74 and Envirotex Lite, 2 of the leading resins on the market. Our product clearly outperformed those two, however it did yellow--as we expected--due to being subjected to undesirable conditions (no epoxy resin is EVER recommended to be in UV light). After these tests, we added that additional UV stabilizer called HALS for extra yellowing protection.
ArtResin is the best by far that I have tested and seen. I have been trying to solve the yellowing of Epoxy Resin since 2008!
In all transparency, this product is too new for me to have years worth of evidence to share with you. We remain very confident however because of our initial test results, plus the added HALS. Even in the bottle, the resin and hardener are clearer than any sample we've ever concocted or tried from chemists around the world. We continue to run tests and will publish these results online when they become available, and at regular intervals (i.e. 1 year test results, 18 months, 2 year, 2.5 year.. etc).
Happy to chat or answer any questions. Do check out ArtResin.
Polishing won't help. It is not just surface color change.
UV top coats will need to be reapplied every 2-3 months to be effective.
Bellastymiest
New Member
Ive found with different pieces ive had such as jewellery that letting it soak in hydrogen peroxide and carbonated water makes a significant difference. It didnt make it as good as new but 95 percent of the way
