🔷 Loctite 515 Gasket Maker & Flange Sealant for Automotive: High Temperature, Medium Strength, Anaerobic, Purple, 50mL (Part Number: 555352) Review

Use sealant that works excellent when overhauling a manual transmission. This is a great choice for a sealant between two metal flanges that is both nice and flat. Definitely won't fill big gaps, but that's not what it's designed for

Product instructions indicate use of primer. An examination of the Loctite data sheet shows that this is not required but will reduce cure time and strength. this information is not included in the product description. Curing time up to 72 hours without primer

I have been using Loctite 515 as a mechanic for over thirty years and am confident. You can use it as a cushioning bandage or make a seal yourself. I have found it useful to seal small pipe thread fittings in high pressure systems such as hydraulic or cooling systems. Lubricate the 515 threads and the thing will seal while regular pipe lube or teflon tape will seep through the threads. I had a constant oil leak from the push rod tube o-ring on my Harley, I coated the 515 o-ring, put it back…

After much research I decided to give it a try. I have an old Speedaire air compressor that had a leaking valve plate seal that can no longer be replaced. The seal is subjected to heavy compression and excessive heat. After trying to make a replacement using gasket material (which almost worked, but still leaked a bit) I assembled the compressor with this product and it worked perfectly: no leaks. It is imperative that the contact surfaces are very clean before application. It forms a thick…

This resulted in a leak free result when installing a water pump that gave me a nervous breakdown. I installed a pump on a Ford 5.0, there was a gasket, then a piece of sheet metal, then another gasket, then a timing case cover. Multiple layers, multiple flow options. I tried NAPA 80062 High Tack because that's what my dad used to make. Less than acceptable results. Then I tried Permatex 22071. Less acceptable results. I then tried this product with Klean 'N Prime. I followed the instructions…