A Perfect Dedome?

Cool I will have to give this a try. Thanks.

If you have a small ultrasonic cleaner, you might want to try that (at least as a final rinse sort of thing). When I put flammable liquids in my cleaner it is always in a small (like 30cc) cup that is floating in the tank filled with water. The cleaner that I do that in is a small Harbor Freight jewelry sized cleaner. You might need to do a couple of runs with fresh solvent each time.

If its a silicone dome would some kind of silicone spray dissolve it? What dissolves silicone anyways, that is less harsh then gasoline?
I’ve wondered what kind of light output you would get from a concave dome instead of a convex one

Don't know about the phosphor exposure issues - NightCrawl brought up the gas method here: https://budgetlightforum.com/t/-/16982, but didn't mention anything about exposure issues.

Heating works fine for me. You need to have the correct temperature and the results may vary..

i never expected somoene to try it that pricey pcb

Anybody still use Led Seal after dedoming?

I think it's the best thing since sliced domes.

I haven't done a before/after lux measurement yet...I'll put it on the schedule. :)

Thanks for the testing, thusfar I just went ahead with a forceps with various results, I have some leds underway that are going to be dedomed, I'll give a few of these methods a try , including the gasoline one (here in Europe I will use petrol instead, hope that works too ).

No, petrol only works in great britain. ;)

_the_ - that's a great dedome. Was thinking of trying a different approach for a heat method, viffer750 made it look so easy and I think he quotes a 100% success record, but the success I had with gas, I'll probably stick with it, only go to a high octane - NightCrawl mentioned their gas is 95 octane he used.

I cant remember which worked better, but I also dedomed one using a mixture of gasoline and acetone. Pretty much trial and error, but I never touched the dome or the glue with anything because I didnt want to kill the bond wires.

acetone works great, you just need to be much more patient than 40 minutes

also, goes faster if you take the silicone off the flat edge around the dome with a razor before soaking

don’t pull it off…it will float off

I have to ask. Whats led seal?

i wonder if soaking it in goo gone will work too?
goo gone

I tried it and it ate the dome :slight_smile: ill try it again to see if it works like my first attempt

I expect it would, but i’m surprised the phosphor survived!

your led will only work in the uk, if you try to travel with it, it won’t be compatible with batteries and dark environments designed for the rest of the world :smiley:

Nah…you just have to hold it in your left hand for it to work. :wink:

Success! I had cut this one down and polished the remaining dome.
Bare emitter Lumen results: 700mA drive current, XM-L T6 1A
Original dome unchanged: 276 lm
Cut down and polished with 2000grit: 200 lm
Gasoline dunk, dome fell off: 264 lm
This one be going in my other HD2010 on copper SinkPad to compare to the XM-L2 T6.
The tint looks slightly greener than before. Definitely warmer now.
Hmm, my vision seems more affected than usual by the emitter at full power. Keep your eyes safe. I need to get some oxy welding glasses…