Karim Ul Hasan

Many assume that DIY head gasket repairs are complicated and messy, but from hands-on testing, I can tell you otherwise. I’ve used both the THERMAGASKET Head Gasket & Block Repair Sealant Kit and Green Demon’s sealer, and the difference is clear. The Thermagasket’s high-temp formula creates an instant, robust seal, even at extreme engine heat, … Read more

Many folks assume that any sealant will do on cork gaskets, but I’ve found that’s simply not the case. I’ve tested various options—some crack under heat, others don’t stick well enough, and a few become brittle over time. Trust me, the right sealant makes a huge difference in preventing leaks and ensuring durability. After hands-on … Read more

Many people assume that any RTV sealant will do when sealing a transmission pan gasket, but my hands-on testing proved otherwise. After trying several options, I found that the Permatex 81180 Automatic Transmission RTV Sealant 3 oz Gray stands out. It’s specifically formulated to withstand harsh transmission fluids, thermal cycling, and weathering—without cracking or shrinking … Read more

For years, sealants for thermostat housing gaskets lacked strong resistance to high water or coolant temperatures, which often led to leaks or failures. After hands-on testing, I can tell you that a good sealant needs to withstand extreme temps and maintain flexibility. I’ve found that the Permatex 22071 Water Pump and Thermostat RTV Silicone truly … Read more

The first thing that struck me about the J-B Weld 31314 High Temp RTV Silicone Gasket Sealant 3 oz wasn’t just its ability to withstand heat, but how smoothly it applies and seals without messy runoff. After hands-on testing, I noticed it forms a tough, waterproof barrier that stays flexible at high temperatures—perfect for stove … Read more

One rainy day, I was working under the hood when suddenly, oil started seeping from my valve cover. That’s when I realized how crucial a reliable sealant is—especially one that handles heat, oil, and corrosion without fail. After testing several options, I found that the X AUTOHAUX Rubber Valve Cover Gasket Sealant Set for Chevy … Read more

For years, sealants for metal oil pan gaskets have lacked flexibility and long-term resistance, which is why the Visbella Oil-Resistant RTV Silicone Sealant 3.5oz Grey deserves your attention. I’ve tested this product extensively, and it stands out because of its exceptional durability and resistance to high temperatures. It doesn’t crack or shrink over time, even … Read more

Before testing this, I never realized how much a poor sealant could cause water leaks and costly repairs on EPDM rubber gaskets. I’ve tried thick tapes that peel off over time and liquid coatings that don’t stick well or crack with temperature changes. After hands-on use, I found that the key is a product that … Read more

Before testing this sealant, I never realized how much a subpar gasket binder could lead to leaks and constant fiddling. When I used the Permatex 80062 High Tack Gasket Sealant, I finally saw the difference. Its tacky, fast-drying film holds cork oil pan gaskets in place instantly, preventing slips during assembly and sealing oil pans … Read more

The engineering behind this product’s high-temp silicone sealant for copper head gaskets represents a genuine breakthrough because it combines extreme heat resistance with flexibility. Having tested various sealants, I found that some crack under thermal cycling, but ABRO Ultra Plus 999 RTV Silicone Sealant, Copper, consistently forms a leak-proof gasket up to 650°F without shrinking … Read more