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Akfix HT300 High Temp Silicone Gasket Maker (2x10.1 fl.oz.) - Red RTV Gasket Sealer, Flexible High Heat Silicone Sealant Up to 600F, Valve Cover Gasket Sealant for Automotive | 2 Pack

Free shipping on orders over $29.99

$19.99

$ 9 .99 $9.99

In Stock

1.Size:1 Pack


About this item

  • 𝗛𝗜𝗚𝗛 𝗛𝗘𝗔𝗧 𝗥𝗘𝗦𝗜𝗦𝗧𝗔𝗡𝗖𝗘 Akfix HT300 is a very powerful, long-lasting adhesive that can endure exposure to high temperatures and is heat resistant silicone. Excellent heat resistance after curing up to 482°F permanently and up to 572°F temporarily.
  • 𝗥𝗧𝗩 𝗚𝗔𝗦𝗞𝗘𝗧 𝗠𝗔𝗞𝗘𝗥 With RTV Silicone Gasket Maker, you can count on waterproof performance in most conditions. This silicone caulk is virtually unaffected by chemical deterioration, extreme weather, temperature or aging.
  • 𝗦𝗧𝗥𝗢𝗡𝗚 𝗗𝗨𝗥𝗔𝗕𝗟𝗘 This gasket sealant resists mechanical enforcement after curing. Will not crack, shrink or become brittle.
  • 𝗥𝗘𝗠𝗔𝗜𝗡𝗦 𝗙𝗟𝗘𝗫𝗜𝗕𝗟𝗘 High temperature silicone is a flexible sealer and long-lasting adhesive that dries slowly, making it a preferred option for both DIYers and experts.
  • 𝗩𝗔𝗥𝗜𝗢𝗨𝗦 𝗔𝗣𝗣𝗟𝗜𝗖𝗔𝗧𝗜𝗢𝗡 𝗔𝗥𝗘𝗔𝗦 Our 100% silicone mastic joint sealant is a gap filler used on waterproof sealing and bonding in stoves, chimneys, gaskets in pumps, motors, automobiles and where parts must perform at high temperatures and heat.



Product Description

HT300 Gasket Maker
HT300 Silicone Sealant

Rafael Morales
Reviewed in the United States on February 23, 2025
It works and am content
Customer 523
Reviewed in the United States on February 18, 2025
This is good gasket maker!
Customer
Reviewed in the United States on February 13, 2025
No leaks after used for a head gasket sealer on a flat head 6 cylinder engine.
Squirrel
Reviewed in the United States on January 4, 2025
Worked great for a valve cover gasket and no metal tubes breaking and getting silicon everywhere.
Zeppelin1969
Reviewed in the United States on January 1, 2025
Works great, but it's thinner than I thought and can be a bit messy if you're not careful.
Brian D
Reviewed in the United States on August 28, 2024
Work like ot was suppose to
Richard Kakareko
Reviewed in the United States on June 16, 2024
Used this on commercial smoker centrifugal upblast exhaust fan chimney and fire box chimney to seal the vent pipe. It adhered and cured very well, and quickly. It exhibits excellent adhesion, even after high temp exposure. I like the fact that it comes with a screw on cap to preserve unused RTV for later use. Smart! Excellent value.
gadgetman
Reviewed in the United States on December 11, 2024
I love this stuff.... I use it on just about everything. It does exactly what they say it does and its cheap. Ive had problems with some of their competitors products in the past but never with this stuff..... the tubes also come with a reusable cap which is really nice..... the longest Ive kept a capped opened tube of this stuff laying around was about 6 months and it was still in the same usable condition as the day I opened it. I recommend some disposable gloves and some caution while using it though because that red wants to get on everything and it sticks good as long as the surface isnt wet
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