Would this do good to seal a usb port with a usb cord plugged in?

Not sure why you need to seal a USB PORT but I see no reason it wouldnt keep it waterproofed.

Is this stuff good for polyureathane bushings

Yes it is good for polyurethane bushings.....the lube they sell for the bushings is essentially rebranded dielectric grease too.

Has anyone tried this on fishing reel components? Is it light enough?

Definitely! I've been using it from 15 yrs or more... The main purpose, to seal the reel and protect screws from salt; for those that are not stainless I fill the hole with the grease to the top well, every where there is a screw head facing out. And all around the edge and bound surface of the gear cover, anywhere water can sip in! And in the gears, but I would mix it with other type to soften a bit for smooth reeling experience.

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Silicone Dielectric Grease Paste - 8 Oz Dielectric Grease for Electrical Connectors and Spark Plug Protection - Waterproof Clear Silicone Paste Automotive Greases and Lubricants

Product ID: 19409154

Details

Brand
Mission
Item Weight
8 Ounces
Liquid Volume
237
Material
Silicone
Package Information
Jar

💧Waterproof seal - corrosion defense

🔥570°F flash point - heat resistant

🖌️Built-in applicator brush - precision

R$432

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Sold byAmazon BrazilDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Seal the deal with Mission: Ultimate protection for your ride’s spark and circuits!

TRUSTED DURABILITY - Engineered to industry standards with a 4.8-star rating from over 5,000 users—join the elite who never compromise.
WATERPROOF BARRIER - Seals out moisture and prevents oxidation to keep your electrical connections flawless.
PRECISION APPLICATION - Integrated brush ensures mess-free, targeted coverage every time.
VERSATILE PERFORMANCE - Perfect for spark plugs, brake caliper pins, and preserving rubber gaskets—your all-in-one maintenance ally.
UNRIVALED HEAT RESISTANCE - Withstands extreme temps up to 570°F for lasting protection under pressure.

Mission Automotive Silicone Dielectric Grease Paste is a premium 8 oz silicone-based lubricant designed to protect electrical connectors and spark plugs from moisture, corrosion, and voltage leaks. Featuring a high flash point of 570°F and a built-in applicator brush, it delivers precise, waterproof sealing for automotive, marine, and electrical applications, ensuring reliable performance and extended component life.

Specifications

ASIN	B016E5E59G
Best Sellers Rank	#26,640 in Automotive ( See Top 100 in Automotive ) #13 in Automotive Electrical Greases
Brand Name	Mission Automotive
Container Type	Jar
Customer Reviews	4.8 4.8 out of 5 stars (5,047)
Flash Point	570 Degrees Fahrenheit
Included Components	1
Item Form	Paste
Item Weight	8 Ounces
Liquid Volume	237 Milliliters
Manufacturer	Mission Automotive
Material	Silicone
Model Number	8542064566
Number of Items	1
Part Number	08946
Recommended Uses For Product	Car,Electrical,Windows
Specific Uses For Product	Automotive, Mechanical
UPC	638037142402
Unit Count	8.0 Ounce
Upper Temperature Rating	570 Degrees Fahrenheit

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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R$432

Duties & taxes included

In stock

Sold byAmazon BrazilDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Brazil.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Customer service was outstanding when I had questions about the product.

2 days ago

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Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

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