BlackShell - Stop Rust, Corrosion Preventive Coating - Gloss Black, 1/4Pt

Expensive but worth it used on a 12’ open trailer and did some wire wheeling light sanding and prep work to the frame after taking old wood bed off and this rust bullet black shell did the trick applys easily with a 2” brush 2coats did cover quite a bit of area when dry looks like a powder coat finish did the project outside to have good airflow would recommend this for a dyi fix to any old steel frames

Initial review (update at the end): This is my first time using Rust Bullet and I am pleased with the results so it won't be my last... BUT... It's difficult to work with. It is extremely tacky and begins skinning almost immediately. At first I thought they might have sent me an expired quart because as soon as I opened it, it began to expand into a thick foamy mess that started to spill out the top of the can, but I quickly went ahead and poured some out, mixed in a bit of solvent, loaded it up and went to spraying. The results... Really really good. I sanded using the suggested 80 grit and did 6 coats, the adhesion and hardness is amazing. The color options (white/black) do mostly limit it as an industrial paint as even though you can add a different top-coat the Rustbullet makes for a super solid top-coat. UPDATE (08-25-24) I've been repainting a bunch of jobsite boxes using this stuff so I thought I might expand on my review. Even though the results were good for the initial quart I ordered, I do think that first quart was past its expiration date as the paint I've ordered since has been of typical viscosity, hasn't foamed-up/skinned and has been easy to work with. A hardner is probably rarely warranted with this paint as after 24 hours it seems around 70% cured and by 48 hours it is 90% cured and is rock-solid. But with that said this product does not store wiell and should be used immediately after opening; I've been using the pint-sized to spray the jobsite boxes (spraying 5:3) and doing ~5 coats on ~25 sq feet before it's been depleted.

This coating is the toughest rust-proofing and metal protection I have used. Wear gloves when applying it because it is hard to remove. I have a project car from the 70s, and any bare metal rusts fast. I keep a tin of this on hand to cover weak spots, and so far it has held up well. The finish is durable, almost like epoxy. It is a bit expensive, but it is worth it since you do not need to keep reapplying. It is basically a one-and-done coating, which makes it a solid value.

a previous review mentioned how hard it was to get the can open... i had a metal paint can opener, i thought, how bad can it be? it is super hard to get this open....on a 1-10 point scale, this was 12 at least. i basically destroyed the lid getting it open, so how to re-seal the left over paint? thats why i deducted one star. it seems to go a long way, i wouldn't order more than you think you need. the paint looks great, self-leveling as well. just be prepared to fight the lid!!!

Put it on a mower deck. Deck wasn’t a year old and had surface rust. Painting it on was easy. This can cover both sides of 42 inch deck. Nothing extra. Took a day to dry at 70 degrees. So far it’s been good.

WHAT A WASTE OF MY TIME! I actually was excited to try this product, but this turned into a total nightmare, (see pictures) I could not get the lid off! This 1/4 pint sized can would go straight in to the trash if I hadn’t decided to send it directly back to the manufacturer! Let them open it!!! The label literally says “open with caution, contents may be under pressure,” what does that mean??? that hardly matters when the thing won’t open at all. The rim is deeper than a normal can, which makes it almost impossible to get any leverage. And the rim bent everywhere so it makes it even more impossible to pry open. I kept trying, and instead of opening, the lid just started bending and warping. I spent 30 minutes fighting with this thing using anything I could find. At this point, the lid is mangled, I still can’t open it, and I’m not about to force it and risk the paint exploding everywhere. Come on guys!!!! Worst design I’ve ever seen. Ridiculous!!!! ZERO STARS!!!!

This is the best stuff I've found to prevent or treat metal with rust. I try to treat any rusty areas with the Rust Blast first, which really removes the rust, but this paint also inhibits the growth of existing rust if painted over. There are a few tips that I need to share with potential users of this product. The metallic grey is more silver than grey and it's thicker than the black. Therefore, the black may require more coats than the grey (silver). Also, these paints take a long time to dry, or cure. In other words, don't touch it even after it's sitting it the sun for an hour. Give it time to dry. Additionally, don't get this pain on your hands. This stuff sticks to anything and is very difficult to remove, especially fingers. Wear gloves. And finally, since this stuff dries like a weld, getting this pain on the rim of the can will eventually make it almost impossible to open the lid again. Thus the smaller cans are great. I am going to try transferring the contents into a screw-top canister and see if it works better, but I suspect it will only work if I keep the pain off of the rim. Hard to do if you shake it up to mix the paint first. Having said that, with a few precautions, this stuff is like painting a layer of armor over any metal surface. Rust can't grow if it can't breath. Highly recommended, but watch out for the welded lid syndrome which is practically impossible to open.

I tried ordering this product from Amazon twice and both times the product arrived dried up / hard - not as paint. I reached out directly to the manufacturer (in Nevada). The product they shipped me was in perfect condition and worked great! I used this on a rusted bathroom ceiling fan housing - not the fan itself but what you see when looking up at the fan. I found the product easy to apply (it was a bit thinner than a latex paint, but was not runny) and the odor was no where near as bad as some people described - no worse than an oil stain. I applied 3 thin coats and will wait 24 hours and will then apply a white semi gloss latex paint that matches the trim in the bathroom. I suspect you will be unable to reuse any leftover paint - to get the lid off I mangled it and if you don’t get an airtight seal, it will harden up. It’s easy to see how this product suffocates rust - it essentially dries more as a rubber coating than as typical paint. It is smooth and does look like paint, so top coating as I am doing is not necessary.

Easily covered 8 rims with some product left over. A few thin coats built up a nice hard finish with a good gloss. The product does have a bit of an oder so definitely work in a well ventilated area. Hopefully the finish will stand up better than products I have used in the past...time will tell.

Great product, putting on a thin layer as instructed. Small can goes a long way, and dries hard.