4223F-312G Premium Polyurethane Conformal Coating, 11 oz, Aerosol, Clear

Used to coat an AliExpress special clone of a Vzor-1 red dot I plan on trying out, before I found a company that produced them already "waterproof." Worked very well for what I needed, coated a few times once everyday and let dry overnight. Dries quickly it seemed and ease of application was perfect and what you would expect. Protection level is yet to be tested but I trust that it will be much better off than the uncoated PCB it was beforehand. Size is of a standard spray paint bottle.

I can't stress enough how valuable this conformal coating has been in safeguarding my PCBs, especially those I anticipate will be exposed to high humidity or outdoor conditions. In fact, I've made it a rule of thumb to apply conformal coating to virtually any outdoor PCB, regardless of whether it's in a covered location. The reason is simple – even humidity can be surprisingly corrosive over time, leading to damage in solder joints and sensitive components. Applying this conformal coating is a breeze, and I appreciate how user-friendly it is. It doesn't require a complicated application process, making it accessible even for those with limited experience in PCB protection. What truly sets it apart is its durability. Once applied, I can trust that it forms a reliable barrier against the elements, ensuring the longevity and performance of the PCB. In essence, this conformal coating has become an essential step in my PCB protection process, especially for any electronics exposed to outdoor or high-humidity environments. It's a cost-effective and practical solution that adds an extra layer of defense, ultimately extending the lifespan of valuable electronics. If you're looking to enhance the durability of your PCBs and safeguard them against humidity or outdoor conditions, I wholeheartedly recommend giving this conformal coating a try.

This stuff is impressive. It forms a very thin but durable protective barrier after curing for a couple minutes at 100C. It even survived 24hrs in pirhana solution with zero visible corrosion! Edit: 99% IPA works great for removing it if necessary. Let the PCB boil in the alcohol for 10-15 minutes and it can be scrubbed off with a toothbrush.

It worked well for the first few projects, but the cap must have gotten jammed after a few uses, and now I have an almost full can that I can't use. I've tried cleaning the cap, but it won't spray

Easy to apply in even coatings. I use to protect PCB assembly for harsh corrosive environments. I apply in single coat a few mils thick and is dry enough to complete assembly in a few hours at room temperature. Highly recommended over acrylic types.

Used to spray a replacement circuit board on my max fan in my camper that may be subject to moisture contamination. So far no problems.

Needs to be cured in an oven on low heat but it performed well and didn’t leave an odor or residue. Used on an RV heater board notorious for water damage. Applied this to the new board and it looks very well sealed and works great. Expect it to last much longer.

This stuff lays down a nice, fairly flat, fairly thick layer of poly coating. Great for waterproofing a board I was working on and reducing the effects of vibration.

bonne qualité

Based on the data sheet, this looks like a great product with moisture and mould protection, for your PC board. The downside is that it has a long cure time, if left unheated. I carefully warmed mine in a BBQ. Remember to mask your connectors before spraying.

Great product, I used it on my exercise equipment to stop sweat rusting it.

J'ai tropicalisé mon drone fpv et le produit est comforme

Bought to preserve some 70's vintage PCBs with no solder-mask following a repair (and noticing a lot of fingerprints etched into the traces...) Goes on really nicely with good build-up, dries fully in a couple of hours without too much odour so I was able to use it indoors. I missed something on one board and was able to solder through the coating with no problems - no need to strip it or use a ton of flux. I've always avoided conformal coatings but would definitely use this again.