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Automotive Sealants

45 automotive sealants from Permatex, Loctite, Gneoco and more.

Recommended Automotive Sealants

Bellisinno

Thread Lock

+Blue and red medium and strong strengths cover multiple fastener needs
+Threadlocker suits nuts, bolts, fasteners and metal parts
+Anaerobic thread lock for securing threaded fasteners
No price recorded yet.
Hannaera

Thread Lock

+Blue and red medium and high strength options in one set
+Threadlocker suits nuts, bolts, fasteners and metal parts
+Thread lock designed for threaded fastener securing
No price recorded yet.
Gneoco

Thread Lock

+Blue medium strength suits removable fastener locking
+Threadlocker works on nuts, bolts, fasteners and metals
+Anaerobic curing thread lock for threaded connections
No price recorded yet.
Bellisinno

Thread Lock

+Blue and red medium and strong strengths cover multiple fastener needs
+Threadlocker suits nuts, bolts, fasteners and metal parts
+Thread lock designed for threaded fastener securing
No price recorded yet.
Gneoco

Thread Lock

+Fifty-milliliter capacity holds more product than small bottles
+Blue and red medium and high strength options included
+Threadlocker suits nuts, bolts, fasteners and metal parts
No price recorded yet.
Vibra-TITE

Thread Lock, Red

+Permanent strength gel formula for locking fasteners
+Pump dispenser for controlled application
+35 ml capacity for smaller fastener jobs
No price recorded yet.
Vikagu

Thread Lock, Blue

+Medium strength threadlocker for metal bolts, nuts and screws
+Removable grade suits fasteners that need later disassembly
+50ml capacity for multiple fastener jobs
No price recorded yet.
ACDelco

Clear

+Body joint and seam filler compound for auto body repair
+10.1 oz container holds a generous amount of filler
−Body filler is meant for seams and joints, not structural repairs
No price recorded yet.
J-B Weld

Gasket, Blue

+Silicone gasket maker for automotive sealing tasks
+3 oz tube suits small gasket and sealing jobs
−Small 3 oz tube is limited for larger gasket jobs
No price recorded yet.
Permatex

Thread Lock, Blue

+Medium strength threadlock for fasteners that may need removal
+6 ml bottle size for small threadlocking jobs
No price recorded yet.
Permatex

Thread Lock, Red

+Permanent strength threadlocker for fasteners that stay in place
+10 ml bottle size for a moderate number of threaded jobs
−Permanent strength makes later removal difficult without heat
No price recorded yet.
Permatex

Thread Lock, White

+High performance thread sealant for pipe and fitting threads
+50 ml tube size for a moderate number of sealing jobs
No price recorded yet.
Permatex

Gasket, Gray

+RTV sealant designed for automatic transmission pans and case halves
+3 oz tube size for small transmission sealing jobs
No price recorded yet.

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Spec scores, pros and cons, and prices are explained in the How it works section of the About page.