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"Greenstuff to cover up leaking radiator?" Topic


8 Posts

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1,015 hits since 6 Feb 2012
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Comments or corrections?

Gattamalata Inactive Member06 Feb 2012 12:39 p.m. PST

IIRC, kneadadite or greenstuff is also plumber's putty or is the latter a different mixture? The radiator in the living room is dripping onto the hardwood floor from the part where the shut-off valve connects to the radiator proper. I've called the landlord, but it'll probably be days before a plumber shows up and replacing a plastic cup every hour or two isn't practical when I'm not home or asleep. How about using a green/yellow kneadadite as a temporary fix? How long would it take to cure before using the radiator? Would curing time be accelerated if it's already hot as a stove?

Ron W DuBray06 Feb 2012 2:12 p.m. PST

that is what it was first designed for.

Personal logo 20thmaine Supporting Member of TMP06 Feb 2012 2:57 p.m. PST

If greeenstuff is the same as Milliput, then it's made for fixing leaks.

Farstar Inactive Member06 Feb 2012 3:20 p.m. PST

Greenstuff is not (quite) the same as milliput, but it is the same as the plumbers (or toilet) repair putty one finds in DIY stores, with minor differences. Greenstuff has no notable reaction to water, unlike Milliput.

Repair putty is "coarser" in some sense. The greenstuff packaged for sculpting is formulated to be smoother in use and results.

Repair putty has less memory effect, and will typically stay the shape you make it instead of trying to return to rounded. When sculptors stated a desire for this characteristic, Polymeric released a smoother grade of that formula as "brown stuff". Sculptors use both, and they can be blended for hybrid behavior.

Gattamalata Inactive Member06 Feb 2012 3:34 p.m. PST

I'll give it a try…

Can't see the area and don't have a small enough hand mirror, but it feels like a crack, though it could be the roughness of the metal. Maybe a washer is loose, but I was hoping a plumber would show up today and have emptied out 5 glasses of water.

The pack with leftover kneadatite isn't fresh, but didn't expect the blue part to not mix with the yellow – maybe fully cured? Have some leftover brown/aluminum kneadatite (brownstuff) and this still feels malleable.

Gattamalata Inactive Member06 Feb 2012 5:35 p.m. PST

That was waste of time…

Scraped off the brownstuff – what a waste – and back to replacing a plastic cup every hour. Instead of a crack, I think the entire valve needs to be replaced or maybe a rubber washer inside it. It's even leaking slightly when turned off.frown I don't have the tools to fix it, so will have to wait for the plumber, meaning further damage to the underneath hardwood floor, and I hope the folks in the unit below won't knock on the door.

Only Warlock07 Feb 2012 11:21 a.m. PST

I have used a Epoxy impregnated plumbers tape that as you wrap the fixture it activates the epoxy.

When it sets it is implacably strong.

I have had an external pipe "fix" hold solid through rain and weather for 8 years now. got it from The Home Depot.

14Bore07 Feb 2012 5:34 p.m. PST

Tape it if possible but it should be permanatly fixed very soon. If from a joint it could be a larger problem than it appears. Have a bigger receptical such as a aluminum pan for casseroles 3" high and 12" x whatever

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