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.

Dielectric Silicone Paste Waterproof Marine Grease 8 Oz

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E£ 9113

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Sold byAmazon EGYPTDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Seal the deal with the grease that keeps your gear dry and running smooth!

GENEROUS 8 OZ TUBE - Ample quantity for multiple applications, perfect for professionals and DIY enthusiasts alike.
TRUSTED BY THOUSANDS - Rated 4.8 stars by nearly 5,000 users—join the community that won’t settle for less.
HIGH TEMPERATURE RESILIENCE - Withstands extreme heat up to 570°F, ensuring reliable performance under pressure.
ULTIMATE WATERPROOF PROTECTION - Keep your marine and electrical parts corrosion-free even in the harshest wet conditions.
SILICONE BASED DIELECTRIC FORMULA - Non-conductive paste that guarantees flawless low-voltage connections every time.

MISSION AUTOMOTIVE Dielectric Silicone Paste is an 8 oz waterproof marine grease designed to protect and lubricate electrical and marine equipment. Made in the USA, it features a high flash point of 570°F and a silicone-based dielectric formula that prevents corrosion and ensures optimal low-voltage performance. Highly rated by thousands, it’s the go-to choice for professionals demanding durability and reliability.

Specifications

ASIN	B016E5E59G
Brand	MISSION AUTOMOTIVE
Brand Name	MISSION AUTOMOTIVE
Container Type	Tube
Customer Reviews	4.8 out of 5 stars 4,796 Reviews
Flash Point	570 Degrees Fahrenheit
Item Form	Paste
Item Weight	8 Ounces
Liquid Volume	237 Millilitres
Material	Silicone
Material Type	Silicone
Model Number	8542064566
Number of Packs	1
Package Information	Tube
Part Number	08946
Recommended Uses For Product	marine equipment, electrical components
Specific Uses For Product	Prevent Corrosion, Lubricate in Marine Environments
UPC	638037142402
Unit Count	236.59 Milliliters

Reviews

B**D

Dielectric grease

Best thing on the market for getting your line and low voltage to work properly

1.02.2026

K**D

👍

ممتاز والتوصيل فى الوقت المناسب

11.05.2026

Z**D

Quality

Exactly as described

23.10.2024

M**I

Fantastic

27.01.2026

W**A

Very happy with this purchase, I will buy again.

Pure silicone paste is noticeably high quality. Essential for sealing electrical repairs, lubricating calipers, and any type of rubber, as pure silicone paste is the only 100% reliable solution that won't damage the rubber.

4.05.2026

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E£ 9113

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered 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 EGYPT.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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