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Dielectric Grease - 4oz Brush Top
Dielectric Grease - 4oz Brush Top
Dielectric Grease - 4oz Brush Top
Dielectric Grease - 4oz Brush Top
Dielectric Grease - 4oz Brush Top
Dielectric Grease - 4oz Brush Top

Dielectric Grease - 4oz Brush Top

$8.99
4.8
Rated 4.8 out of 5 stars
4 Reviews

SKU: LTDE-4

Dielectric Grease – 4 oz Brush-Top

4LifetimeLines Dielectric Grease is a high-purity silicone compound designed to protect electrical connections from moisture, corrosion, and environmental damage. By forming a non-conductive barrier, it helps prevent voltage drop, arcing, and oxidation in automotive and electrical applications.

This dielectric grease resists extreme temperatures and harsh conditions, making it suitable for use year-round in automotive, marine, and outdoor environments. Its stable silicone formula will not melt, harden, or break down when exposed to heat, cold, water, or common automotive chemicals.

Designed for Electrical Protection

Formulated specifically for electrical use, this dielectric grease provides excellent insulation and helps prevent moisture intrusion in spark plug boots, ignition coils, battery terminals, connectors, and sealed electrical plugs. When applied correctly, it will not interfere with sensors or electrical signals.

Wide Temperature & Chemical Resistance

With a service temperature range from -40°F to 400°F, this grease remains stable in extreme climates. It repels water, salt, and chemical contaminants while maintaining rubber and plastic elasticity to help extend the life of seals, grommets, and O-rings.

Convenient Brush-Top Packaging

The 4 oz jar includes a built-in brush applicator for precise, mess-free application. This shop-size container provides enough product for hundreds of connections, making it ideal for both professional technicians and experienced DIYers.

Versatile Applications

Common uses include spark plug boots, ignition coils, battery terminals, fuse blades, relay pins, trailer connectors, and weather-sealed electrical plugs. A thin film is all that’s needed to provide long-lasting protection.

Backed by the 4LifetimeLines warranty, this dielectric grease delivers reliable electrical protection and long-term performance in demanding conditions.

  • Product Type: Dielectric Grease
  • Container Size: 4 oz (118 mL)Base Material: Silicone
  • Color: Translucent
  • Service Temperature Range: -40°F (-40°C) to 400°F (204°C)
  • VOC Content: 0%
  • Shelf Life: 5 years (sealed)
  • Application Method: Brush-top jar

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One-Time Purchase. Lifetime Assurance.

Lifetime Quality, Covered — for Life

Zero Risk, Maximum Confidence

Built to Endure. Guaranteed to Perform.

One-Time Purchase. Lifetime Assurance.

Lifetime Quality, Covered — for Life

Zero Risk, Maximum Confidence

Built to Endure. Guaranteed to Perform.

One-Time Purchase. Lifetime Assurance.

Lifetime Quality, Covered — for Life

Zero Risk, Maximum Confidence

Built to Endure. Guaranteed to Perform.

One-Time Purchase. Lifetime Assurance.

Lifetime Quality, Covered — for Life

Zero Risk, Maximum Confidence

Built to Endure. Guaranteed to Perform.

One-Time Purchase. Lifetime Assurance.

Lifetime Quality, Covered — for Life

Zero Risk, Maximum Confidence

Built to Endure. Guaranteed to Perform.

One-Time Purchase. Lifetime Assurance.

Lifetime Quality, Covered — for Life

Zero Risk, Maximum Confidence

Built to Endure. Guaranteed to Perform.

One-Time Purchase. Lifetime Assurance.

FREE SHIPPING

Spend $50. We Cover the Rest.

BUILT TO ENDURE

No Weak Points. No Compromises.

LIFETIME WARRANTY

One Purchase. Lifetime Coverage.

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The 4Lifetime Difference

Engineered to Last. Backed for Life.

Engineered to Last. Backed for Life.

When we say lifetime warranty, we mean it. Our products are built to endure & we stand behind them.

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A Smart, Risk-Free Buy

A Smart, Risk-Free Buy

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This isn’t a temporary fix — it’s a long-term solution. Built-in confidence. Zero guesswork.

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100+ 5 star reviews

“.. easy to get the part you need, when you need it.”

Jackson

Great Experience

Great received day early good product this is 3rd time doing business with 4LifetimeLines
M
Marion K.

Happy Customer

Great product!! I’ve ordered these before and they are great quality! I’ll be back again.
J
Jimmy L.

Excellent

Excellent product shipped quickly and inexpensively. I will be ordering again.
W
Will S.

Ideal Products

Ideal stuff for fabricating brake lines brake lines at a very good price.Kit very well covers the materials for doing the whole brake line system.
T
Thomas J.

Reasonable price and fast shipping!

I'll be back again!
R
Robert E.

Great Seller!

Great seller to deal with. Fast shipping and great products.
M
Mike G.

Great products, competitive prices, and fast shipping. Communication is also top notch.

This was my first purchase and the experience has been fantastic. Great products, competitive prices, and fast shipping. Communication is also top notch.
D
David B.

Great products, competitive prices, and fast shipping.

This was my first purchase and the experience has been fantastic. Great products, competitive prices, and fast shipping. Communication is also top notch.
P
Peter S.
4.8
Rated 4.8 out of 5 stars
Based on 4 reviews
Total 5 star reviews: 3 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
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4 reviews
  • Rated 5 out of 5 stars
    1 year ago
    Works as it should against moisture and corrosion

    Use it on all my wiring applications (Home, Auto & electronics), I live by the beach and the salt air corrodes everything that does not have a protective barrier within days of it being exposed. Highly recommend this product for preventing corroding.

    A
    Alexis
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  • Rated 5 out of 5 stars
    2 years ago
    As advertised

    As advertised

    J
    Jerry
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  • Rated 4 out of 5 stars
    2 years ago
    Good value

    Was looking for something water resistant for wiring on vehicles around the farm

    M
    Margie
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  • Rated 5 out of 5 stars
    2 years ago
    Good product

    I used this to reseal a Rule 3700 bilge pump I totally repaired. It is a silicone grease like you would expect. Used it on the 3 shaft seals, and 2 large housing rubber rings, and the grommet and the wires to slide into the grommet.

    D
    Downey
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