Question 1

Is this product electrically conductive?

Accepted Answer

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.

Question 2

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

Accepted Answer

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

Question 3

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

Accepted Answer

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

Question 4

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

Accepted Answer

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

ASIN	B0006O1ICE
Amazon 売れ筋ランキング	産業・研究開発用品 - 2,774位 ( 産業・研究開発用品の売れ筋ランキングを見る ) 接着剤 - 121位
Compatible Material	コンクリート, 木材, 石材
GTIN (Global Trade Identification Number)	00043425826558
UPC	043425700018 043425006554 434258265582 088022145435 718767917027 971473137824 700736731055 043425826558 088020712301 014444924532 635665203666
おすすめ度	4.3 5つ星のうち4.3 (24,004) var
カラー	Ntroaterproofme
パッケージ内に含まれる商品の数	1
パッケージ商品数	1
ブランド名	J-B Weld
メーカー名	J-B WELD CO
メーカー型番	8265S
モデル番号	8265S
ユニット数	1 個
体積	2 液量オンス
商品の用途	工業、建設、ハードウェア
商品の重量	0.02 ポンド
容器の種類	チューブ
最大張力	5020 ポンド
特殊機能	耐熱性
素材	polymer
耐水レベル	防水

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

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