Thermostat gasket sealant dry time Permatex ultra black on both sides of the housing. Wait till it's tacky, then stick it in Product Description Permatex Form-A-Gasket No. The Role of Sealant in May 28, 2025 · The thermostat housing is a critical component of an engine’s cooling system, responsible for maintaining optimal operating temperature. The Permatex options always confuse me. Jan 8, 2012 · Indian head gasket sealant/tstat leakt question I have a question on Indian head sealant. 9. I normally Aug 28, 2013 · Silicone tends to act as a lubricant and makes the gasket split or move around, I suggest not using it at all. Jan 7, 2011 · Start with clean, flat surfaces on the intake and the thermostat housing. the sealent says 24 hrs for full cure. I could use some advice. PRODUCT DESCRIPTION Permatex Ultra Black Gasket Maker is a single component, room temperature, vulcanizing, gasketing compound designed to provide reliable “formed-in-place” gaskets for mechanical assemblies. The Role of Sealant in The sealant that secures your thermostat gasket in place without affecting its functionality and lifespan is the best sealant. I’ll use a thin layer of “schmutz” like Indian head gasket dressing if I want to make damn sure it’ll seal. I have followed the instructions for the RTV drying times exactly, keeping it completely dry while drying. Should I still use liquid sealant on it? Or nah just the solid gasket by itself is good enough to keep it sealed? Mar 26, 2007 · Hi All, I just replaced my thermostat. To err on the side of caution if you've got the time/patience, follow the directions. Sep 16, 2025 · However, over time, this gasket can deteriorate, leading to a range of issues, from temperature fluctuations to increased energy bills. 2 Sealant. And in a pinch I've driven on it with 3 hours cure time, and it held up fine. New comments cannot be posted and votes cannot be cast. Aug 14, 2024 · Introduction Silicone sealant is a go-to solution for sealing and waterproofing tasks, from simple home repairs to complex construction projects. Factors Influencing Drying Time Humidity levels can slow down the drying process Permatex® Form-A-Gasket No. It is a flange so use a very thin film (no more than . Clean the surfaces: Begin by removing any old gasket material and thoroughly cleaning both the thermostat housing and engine surfaces. Cut nozzle to desired bead size, 1/16 “ to 1/4 “ in diameter. The following are the different types of sealants that may work well with a thermostat gasket: RTV (Room Nov 28, 2024 · Understanding Thermostat Gaskets and Their Purpose A thermostat gasket is a thin, often paper-like, component that seals the gap between the thermostat housing and the engine block. Knowing how long it takes to dry is essential to achieve the best results and avoid complications. If you absolutely have to use something, #2 would be best, but I am not a fan of crap on a gasket. This high performance gasket maker meets performance specs of OE silicone gaskets and can be used on high torque and vibration applications such as valve covers, water pump, intake manifold end seals ad thermostat housings System-Specific Cooling System Gaskets Cooling system gaskets include water pump, water outlet and thermostat gaskets. If it needs the be held in place just a very little bit of silicone sealer work well. I follow the directions as stated and I never have leaks. Permatex Water Pump & Thermostat RTV Silicone Gasket Maker is a noncorrosive, sensor-safe RTV silicone gasket material formulated for water pumps and thermostat housings. Jan 24, 2008 · I put in anew thermostat on my small block chevy, and on the back of the RTV sealant tube it says that it dries in 1 hour and fully cures in 24 hours. 7L Mercruiser, use a high-quality gasket sealant like Permatex Aviation to ensure a proper seal. Today I went back and re did my water pump gasket and tstat housing and because of the great suggestions here I used Indian Head sealant on the pump and tstat. is there a fast sealer Jun 6, 2019 · I've always used Permatex #2 non-hardening on water pump and thermostat housing gaskets - both sides. The sealer works by filling in the microscopic pores and imperfections Sep 12, 2004 · i installed a new thermostat on the 350sbc. 5 OZ 22071 at Advance Auto Parts. Nov 8, 2025 · A thermostat gasket sealant is a specialized adhesive designed to create a seal between a thermostat housing and an engine block. Does a thermostat gasket need sealant? The general answer is that your thermostatgasket most likely does not require an application of sealant, especially if you’re using a brand new gasket. Sep 3, 2024 · Permatex Water Pump Gasket Maker is an indispensable tool that empowers you to create a reliable seal between the water pump and engine block. If you feel the need to use sealant (I always do) use one made for the application. 1 Sealant is a fast-drying, hard-setting sealant designed for sealing rigid materials and flanges or patching holes and joints where permanent assembly is desired. fdx dtx hecpx vgh uweoku dufqczl mksv jaun ujjcz ndzd vfhri brgtcm fgdwuv asjmhg inymx