K-Seal / Steel Seal

I used some k-seal on the mk2 metro I just sold. It's heater matrix was leaking when I bought it and I really didn't fancy taking the dash out so I did a bit of reading up and used it. It sealed the matrix and I drove about in it for nearly 2 years with no issues whatsoever and then sold the car.

steal seal is very good i used it on my range rover p38 4.6 v8 with a blown hg that was a year last october and its still fine had to use 2 bottles as its over 2.0 litre engine but it does work think cost £70 for the 2 bottles

your mapping will be a waste of time if the gasket is going!

Worked for me... for 2 days

Recently applied the k brand stuff to a pug 205 which was pressurising the cooling system and letting in water though not mixing. It worked almost immediately and in my delight after about 10 miles I started giving it the beans, all 954 cc's meagre bhp to the max yo. Suffice to say it didn't like it and tbh I was gutted I'd wasted half the gasket monies on the little blue bottle of copper infused 'permanent fix' potion.

I don't doubt it can work (as many will testify) though don't count on it and obviously being what it is it could fail at any time which can be a pain.

Good luck, fingers crossed for ya.

Ive just noticed some weeping around one of my heater hose connections, its in possibly the worst position ever, either dash out or engine out to fix properly. Do we rekon K seal or steel seal will sort it?

This.

On the 4 occasions I have used it, it has only truly worked once.

First time we chucked 3 bottles of radweld into a Volvo 740. It stopped the leak and it did 2,000 miles around Europe in just over a fortnight.

Second time was in a mate's 306 GTi-6. It stopped leaking but it did weep now and again causing a smell of coolant.

Third time in the dreaded Mondy V6 auto we used it. Cooked the engine when the leak let go big time and we were forever chasing leaks on that wretched car (I suspect the previous owner also used K Seal).

Forth time on the Porsche 944 I used it to seal the matrix. It worked for a month until one day on the way to work I was treated to a nice continuous drip (like a tap left open just enough to flow) of scalding hot coolant onto my leg in addition to a smoke screen that would make many DJs proud coming from under the dash. Suffice to say I changed the matrix, and God it was in an awful state.

Basically, as said I would not cheat some things like a cooling/heating system on a car .

I read the bottle before I chucked it in the metro and it said that it shouldn't be used in certain cases, I think size of leak etc (it's been two years since I used it) and you have to leave it ticking it over for 15 minutes so it gets round the system before driving it.
I've heard bad stuff about rad-weld causing problems with thermostats etc, although never used it myself.
As has been said, if it's an expensive motor, a car which means a lot to you or one you're going to keep, I'd get it fixed properly. I used it because I couldn't be Arsed sorting the matrix.