Patching a Radiator?, Help... Options

[KAMiX]

Ok my radiator has a hairline crack along the top. Squeezing the top hose used to make it bulge a little around the crack, and looked like it could get worse. I got some organic cleanser/patcher stuff, which you mix with your coolant and flushes any corrosion or build ups and also goes hard when it comes in contact with air. Seems to be doing a good job so far.

But I want to patch the radiator externally (it's looking kinda nasty), and not sure exactly what to use on the ceramic/plastic type surface. Has anyone got any idea's on what to use? I haven't messed with this material before, and don't want to pay some radiator shop to do something I could do.

Cheers

[Rjb23]

The people who owned my celica before my had a minor wreck, they cracked the radiator right below the fill thing. I just used some epoxy on it and it hasn't leaked since, just make sure when you do it, its cool and clean, ruff it up with some sandpaper, and use an epoxy that will expand with heat.