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But also silicone conformal coatings ,due to their thickness are more prone to delaminate from thermal cycling . ( “ Think I saw an Irish youtube spiderfarmer SF1000 review where the coating was peeling back and appeared floppy. I made the assumption that it was silicone-based off that. “)...

Nope I do not think that things got wild.This debate about which conformal coating is best for various LED applications goes on even between professionals. http://www.circuitnet.com/experts/87098.html...

Well no,I’ve been always keen to DIY and so never had the chance to see a light fixture from Fluence. Still,personally I would not have chosen silicone as a material for the purpose. Acrylic is far superior material ,for the same price range . I’m aware of the machinery needed for CVD...

Everyone has the right to draw their own conclusions . Maybe that Teknik gentleman discovered( and by now he is already aware of ) something that Cree,Bridgelux,Nichia,Citizen,Osram, Samsung and others haven’t discovered yet and are completely unaware of ..

Actually is as special as it can get ... Not the same materials & not the same effect . I think you have misunderstood quite a few things. Conformal means that it conforms to every contour of a 3D shape. Dispensing is an application method, like dipping,brushing,spraying ,etc. And the LES or...

I ‘ve used many times isopropyl alcohol to clean the LES of my Vero 29 & Citizen COBs,as also to clean the tiny domes of Osram Oslons,from dust and debris,without the slightest issue. I’ve used also isopropyl alcohol to remove acrylic conformal coatings from the DIY electronic pcbs of mine. I...

More about Parylene

BTW, here’s a nice read .... Method and device for producing a parylene coating Current Assignee Osram Opto Semiconductors GmbH BACKGROUND [0003] Corrosive gases such as, for example, sulphur compounds lead to corrosion of sensitive surfaces of electrical components, for example, in the case...

Any proof that indeed Fluence and/or others use silicone conformal coatings ? I had the impression that professionals opt always for the parylene conformal coating (applied by chemical vapour deposition). Furthermore ,in order for the silicone resin to be an effective conformal coating , it has...

I’m not aware of this silicone coating over LEDs.Can you elaborate a bit more? Any links for further info on this ?

Not exactly (if I’ve understood you correctly ) ... The phosphor conversion LEDs have a silicone phosphor encapsulant ,but it is gas permeable .Silicone is chosen because of it’s high thermal stability ,as it is in direct contact with the LED chip . Monochromatic LEDs have a crystal clear...

It will do ! More info : https://www.mgchemicals.com/products/conformal-coatings/acrylic-conformal-coating-419c

Was he using the Plastik 70 or the Plastik 70 Super ? Plastik 70 has a max operational temp of 60C ,while Plastik 70 Super has a max operational temp of 125 C. Exceeding the max oper. temp. can cause the deterioration of the conformal coating ,which most probably will start to peel off ...

The chart shows that a 50 micron thickness of acrylic conformal coating,as also a 2mm thick silicone resin coating ,will not be as protective as a 2 mm thick PU resin coating .In contact with corrosive gases the LED device will lose about 20% of output ,not because of the light absorption by the...

..... “This elastic & transparent conformal coating ,as long as is applied and cured properly ,will protect the LEDs from : -humidity, but also from water splashes ,sprays & mist. - various hazardous to LEDs gasses ( like oxygen ,H2S , SOx ) and atmospheric pollution. - dust ,fibers and other...

And here are some common ( to EU countries ) conformal coatings : https://uk.farnell.com/electrolube/afa200/acrylic-conformal-coat-afa-200ml/dp/2470392 (acrylic,solventless ) https://uk.farnell.com/electrolube/apl400h/coating-conformal-acrylic/dp/3026838 (acrylic,solvent-based)...

Here some types that Cree suggests : Source : https://www.cree.com/led-components/media/documents/XLamp_Chemical_Comp.pdf Parylene aside ,all others (I think ... )can be applied at home ,with various methods .

Read carefully when this condition stands ... FIG. 6. Different coating types can suffer varying degradation in optical efficiency when exposed to corrosive gases. Environmental exposure Comparing the performance of various products in harsh environments can also highlight preferential...

Yeap,I think I'm quite aware of the meaning of contents of the artricle you've posted. Still ,we use them either for ease of expression (for example when someone says PC LED 3000K 80Ra ,I can picture inside my head exactly what output spectrum he means ) or because we can actually use them and...

Yes,I think that acrylic is better than silicone. Silicone coat has to be very thick to be protective enough . Furthermore ,acrylic is much more transparent and colourless ,than silicone . And won't yellow under UV radiation . Here you can read a quite informative article about conformal...