Permatex Dielectric Grease silicone compound protects electrical connections
Permatex Permatex
  • Permatex Dielectric Grease silicone compound protects electrical connections

Permatex Dielectric Grease

Permatex Dielectric Tune-Up Grease is a silicone dielectric compound used to insulate, lubricate and protect electrical fittings. It protects against salt, dirt, moisture intrusion and stray current in electrical connections.

Dielectric grease extends bulb and housing life of navigation lights, masthead electrical connections, trailer lighting and harness or any electric connections exposed to moisture and the elements. Prevents voltage leakage around any electrical connector thereby insuring a strong spark in high energy engine ignition systems.

IN STOCK - Not available for pickup  
$8.32 / ea
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Tech Spec Product Info User Generated Content


  • Marine lights, navigational lights, Bulb bases
  • Battery terminals
  • Spark plug boots
  • Ignition coil connectors
  • Trailer lights, connectors and auto headlamps


The compound is an excellent lubricant on rubber, plastic and ceramic surfaces and it also has good high temperature properties, thus preventing fusing of connections.
BRAND: Permatex
Type: Dielectric Grease
4 1


by PowerReviews
Permatex Dielectric Grease

(based on 1 review)

Ratings Distribution

  • 5 Stars



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  • 2 Stars



  • 1 Stars



Reviewed by 1 customer

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(4 of 4 customers found this review helpful)


Seals and protects

By Moonbat

from Bellflower, Calif

About Me Recreational

Verified Reviewer


  • Easy to Use
  • Protects Well
  • Weather Proof


  • None

Best Uses

  • Boat electrical systems
  • Engine

Comments about Permatex Dielectric Grease:

Dielectric grease does a superior job sealing out moisture from any and all kinds of electrical connections. It does a great job on trailer wiring and lighting connections. This stuff does the job.

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