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Reviewed in the United States on February 23, 2025
This stuff made my exhaust manifolds look brand new. Scrub them with a wire brush blow off the dust get a rag and a tooth brush and start applying and rubbing the calyx in with the tooth brush and rag and be amazed! I even used it in the master cylinder and made it look new again
J. Roger Brown
Reviewed in the United States on January 26, 2025
This stuff is amazing! It made the exhaust manifold on my classic Corvette look brand new in a short time. I used a toothbrush and a clean cloth to apply and in about 30 minutes I had great results. I highly recommend this product. The 3 oz. container seems small at first but I only used about 10% of the contents to complete this task. A+++
Professor Potrzebie
Reviewed in the United States on January 25, 2025
I applied Calyx to the manifold of my '67 Volvo B18, and it looks great. Much better than rust, and much cheaper than having the manifold ceramic coated. I haven't run the engine yet, but I expect it will still look great after it heats up. It appears to be composed of graphite in a benign carrier - mineral oil, maybe.
Aaltotig
Reviewed in the United States on January 14, 2025
I have a 68 Plymouth that I’m not trying to make into a show car, but one that I would like to look as good as possible. My exhaust manifolds weren’t looking too great and instead of replacing them, or paying for restoration I thought I would try this. The can that it comes in is so small I was afraid there wouldn’t be enough but I was very wrong. A little goes a long way with this product, and that’s with very liberal application. I used a toothbrush and a q-tip to get around the bolts. Prep time with a wire brush and wipe down was 10 minutes. Application was about 15, clean up was about 5 minutes. If you add too much product or it gets on your spark plug wires, it wipes right off with the consistency of tooth paste. I wore rubber gloves but when it got on my hands, it washed right off. I would highly recommend this and will use it on more items!
Customer
Reviewed in the United States on July 28, 2024
I used this product on cast iron parts such as exhaust manifolds and brake master cylinder
V V.
Reviewed in the United States on October 19, 2024
So far, so good. Manifolds look great. Hope this lasts.
Kendog
Reviewed in the United States on October 18, 2024
Too cheap to jet coat my rusty manifold, so used this. Smeard with fingers and a toothbrush gives the manifold a bare unfinished metal look, finishing over the rust. Think of it as applying a stain paste. Works well. Last batch I had from years ago finally dried up. Had to get another batch. Using it again, so that should say something about the product.
sean
Reviewed in the United States on March 4, 2023
Good product. Not easy to put on and takes a while after many heat cycles to not rub off.
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