I am using this as a pressure pot for resin and silicone, and it works great out-of-the-box. After 24 hours it has lost no pressure (at 50PSI) without any modifications to the seals needed. I can highly recommend this for anyone else looking into using this for resin, but do have a couple of notes that may be useful. 1) Added a \"1/4 in. FIP Brass Tee Fitting\" from my local big box store to the intake on the underside of the lid. This diverts the incoming air to the sides instead of going straight down, potentially spraying an open-faced mold. 2) Removed the suction tube from the inside to save space. Keeping it just in case I ever actually need to use this for paint. 3) Poured ~28 ounces of silicone into the bottom to create a level surface. Being silicone it will also reduce any mess from spills and can just be pulled out if I need to use this for paint in the future. 4) I don't have a traditional air compressor due to space constraints and instead use a handheld one like the \"RIDGID 18V Cordless Portable Inflator\". It doesn't lock onto the intake fittings, but is still snug enough where it can stay on by itself (these things are really intended for refilling tires, etc.). Initially had an issue with it popping off at higher pressure, but think it was actually from the intake regulator needing to be adjusted (pulled it out, turned it, pushed it back in to \"set\" it to a higher allowed pressure). And that's about it. This tank supports up to 70PSI and I use 50 for silicone and 40 for resin so it is perfect. Sturdy, well made, well-packaged, etc.