[Bill Eveland]

Is there a preferance for any brand, i saw edelbrock had some and was going to get that? . I have a bothched up runner from an inexperianced porter in a Gutsram i need to fill in

[steve25]

Moroso A/B clay is what I use.

If you want to go too shelf I also use Balzona 1111, but it’s dam expensive.

The containers seal up well though and the stuff will last for 15 years.

[beemergary]

Moroso A&B has been holding up for years on my 2 cycle snowmobile race engines.

[tom s]

Splash zone is what a lot of the head porters use.Marine epoxy that sets up underwater.ZSpar makes it,available at West Marine.Tom

[mgarblik]

Originally Posted by tom s

Splash zone is what a lot of the head porters use.Marine epoxy that sets up underwater.ZSpar makes it,available at West Marine.Tom

I think this stuff is the easiest to work because once mixed, you work it with wet fingers and you can get it really smooth before sanding. It also does sand very easily and shapes well. The only down side is it comes in quart containers so you are locked in to buying 1/2 gallon. And it's pretty darn expensive. It does last in the cans for years though.

[Dave Polichena]

I have used Splash Zone on my Sprinkler Heads over the years and has worked well.

[Formulas]

Having worked aircraft EA9394, And right before it takes a hard set 50/50 alcohol and water on your finger to smoothe it out or you can put a plastic type tape on it early to form it / hold it in a desired place / form as it cures then sand after

[tom s]

Mike has it,mix a golf ball size of 1&2 in your hands in a 5 gal bucket of water until it turns green and then work it to what you want.I have seen props fixed on boats underwater to get them home.Great stuff.Tom

[steve25]

Marine prop's do not experience the expansion and contraction of repetitive heat cycles like a epoxy needs to stand up to when used on a cylinder head, especially if it's a Aluminum head!

I see no added benefit that would steer me to us a particular epoxy just because it held up on a prop and set up under water.

[Half-Inch Stud]

Marine Tex, made in Montgomeryville PA works well for resilience to gasoline and gas vapor.

[tom s]

Steve,there is a reason that most head porters use it.I first learned about it from Jaun Mendoza when he did my first set of V heads.Tom

[Dragncar]

I used Marine Tex on a fiberglass boat 30 years ago and its still fine. Know people who have used it on cracked engine blocks too. Very tough stuff.
I always have it in my boat when I go fishing, gill netting.
I am sure its a lot like Splash Zone.

[fastgoat]

Believe it or not- Harbor Freight sells a clear two part export that I used to to build up the floor in my sheet metal tunnel ram for proper runoff and avoid fuel puddling on the plenum floor. I did it several years ago . I have had the carbs off many times since. It is like the day I installed it!

[prostreet64]

Marine Tex in the grey formula is incredible stuff. Did a lot of boat repairs years ago and never had a failure. Have even used it on polyethylene hulls which nothing is supposed to adhere to.

[hurryinhoosier62]

Originally Posted by steve25

Marine prop's do not experience the expansion and contraction of repetitive heat cycles like a epoxy needs to stand up to when used on a cylinder head, especially if it's a Aluminum head!

I see no added benefit that would steer me to us a particular epoxy just because it held up on a prop and set up under water.

Steve, we used Marine-Tex to repair cavitation corrosion pits in 6.9/7.3 IDI diesel blocks. It was the only epoxy that could endure the heat of diesel combustion and coolant exposure.

[CraigG.]

Anything safe with E85 - sorry if highjacking.
Thanks

[steve25]

Notable features.

[Dragncar]

Originally Posted by steve25

Notable features.

I have some of that, great stuff.
I was testing different epoxies to see what would repair a aluminum gas tank on a small engine.
They all failed, except for Belzona. Even parts store tank repair kits made to fix them failed.
Never seen it used on intakes, but I bet it would work very well.
Belzona is no joke. I met their salesman a few times and they have all sorts of specialized epoxies for industry.
That stuff kept a entire pulp mill running I worked at. The cases for the main feedwater pumps were worn through and Belzona kept them working until the day it was shut down.