Is this product electrically conductive?

No. I saw a video on youtube where a guy made a cylinder head out of jb weld, and it did not ground the spark plug.

block crack between cyls 5 & 7 against the head, at the narrowest point between cyls. both cyls are sleeved. will jb hold the temp without breaking do

thanks gpower. was looking online at the temp ratings of different epoxy products, actually found one @2100F, but with low tensile strength. I would like to stay away from welding as the crack is five eights long and sleeved at each end. just now pressure testing and the waterjacket has held 30 lbs for 12 hrs. I may also entertain some of the hi-tech block sealers, if it continues to hold pressure. thanks again for your input, and wish me luck putting life back in this old hemi. Dean

I have a number of small leaks in an older aluminum boat-- would JB work for a repair on this as a weld/filler for small punctures? thanks

This is a general purpose epoxy that worked great for me on cast iron. It does say you can use it for marine purposes, however you might also consider their product made specifically for water:http://www.amazon.com/J-B-Weld-8277-Water/dp/B000BRQ0TW/ref=sr_1_5?ie=UTF8&qid=1392730373&sr=8-5&keywords=jb+weldor look into the Permatex product made specifically for metalshttp://www.amazon.com/Permatex-84109-PermaPoxy-Minute-Multi-Metal/dp/B000ALDXV2/ref=sr_1_1?ie=UTF8&qid=1392730252&sr=8-1&keywords=metal+epoxy

Will this stop an exhaust leak right where a donut goes flanges off of the manifold? Or which jb weld would work

If your donut is bad you need to replace the donut. JBweld is a metal epoxy, you'll end up creating a permsnent bond wherever you've stuck it to and make it difficult to make a proper repair later without grinding it off. If it's a crack you need to fix, spread it on thick and press in some wire mesh.. Fiberglass style patch. Let if cure and it should be good. Patched some long cracks that way. Hope that helps

Desertcart Logo

Deliver to Philippines

For best experience Get the App

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan
KOREA

Customer Services

About Us

Customer Support

Description

🔥 Bond like a pro — strength that lasts and performs!

HEAT RESISTANT - Endures extreme temperatures up to 550°F without fail
MADE IN THE USA - Trusted quality and reliability from J-B Weld Co.
EXTENDED WORK TIME - 4-6 hours to shape, 15-24 hours full cure for precision
PRO LEVEL STRENGTH - Rated 3960 PSI for industrial-grade durability
VERSATILE APPLICATION - Perfect for home, auto, plumbing, marine & crafts

J-B Weld 8280 PRO Size Steel Reinforced Epoxy delivers a powerful 3960 PSI bond with a 4-6 hour working window and full cure in 15-24 hours. Engineered for diverse repairs from automotive to marine, it withstands heat up to 550°F and offers a permanent, sandable, drillable finish. Proudly made in the USA, it’s the go-to epoxy for professionals and DIYers seeking lasting strength.

₱2289

Duties & taxes incl.

Philippinesstore

Free Shipping

with PRO Membership

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

View all Trustpilot reviews

Manufacturer	J-B WELD CO
Brand	J-B Weld
Product Dimensions	0.76 x 12.7 x 20.32 cm; 9.07 g
Item model number	8265S
Is Discontinued By Manufacturer	No
OEM Part Number	20-1623
Special Features	耐熱性
Item Dimensions L x W x H	8 x 127 x 203 mm
Viscosity	中間
Color	Ntroaterproofme
Item Weight	9.07 g

j-b溶接8280元 – プロフェッショナルサイズスチール強化エポキシ – 10オンス 2 oz 8265S 1

Details

Description

Specifications

Have a Question? See What Others Asked

Common Questions