"used quite a few of these kits now , make sure you check the box before leaving the store as my last one only had 1insulating jacket in. will freeze a 15mm pipe in under 10 minutes and stays frozen for around 30 mins if conditions are right.,"
"This stuff is spot-on. i was concerned before but after few uses you start trusting it. you don't need to scale it . you can determine by hand when is half, and you'l know when you see the frost on the pipe, outside the sleeve, it is ready."
"Used this kit to replace two very old leaking rad valves. Followed instructions to the letter and all worked perfectly. Used a previous reviewers calc of weight of empty can (152g) to estimate when the can was half full and seemed to be accurate. A little pricey but when compared to draining down system and refilling with inhibitor etc. is worth the money. Make sure you have everything prepared and to hand before freezing your pipe as you don't want to waste time finding stuff when it's frozen!"
"Had to use this Pipe freeze kit today to replace 2 radiator valves, basically does what it says on the tin "Freezes" Pipe was frozen in less that 5 minutes and gave us plenty of time to change valves, well worth the money as saved us loads of time not having to drain system, refill. I would be happy to use again ;-)"
"I've tried a few different pipe freezing kits before - with very mixed results. This one did the job just as advertised. Although it does say to leave for 5 mins I left it for an extra couple just to be sure. It was very handy having 2 jackets in the kit allowing me to cut the hot and cold pipes at the same time. Just have a pair of kitchen scales handy so you know when you've used half the can!"
"I had no choice but to use this as my inside stop tap was leaking. As it was just before Christmas, getting an expensive plumber in wasn't really an option. I couldn't turn off the water from my outside stop tap either as there wasn't one to be found. United utilities told me my council had probably tarmac'd over my house's stop tap grid during pavement maintenance. Well it was scary but it worked a treat. My pipe was lead and we were worried it wouldn't freeze for long enough to make the change. It did and now all is good :-)"
"I had a leaking auto air vent bottle valve to replace and didn't want to drain the heating system. I froze two pipes leading to the bottle valve and made the repair. The repair itself took 5 mins but I measured how long the pipes stayed frozen using an isolation valve I fitted: it was 30 mins. So I am very pleased even if it was a little costly.
Some points to note: - the pipes were 15 mm - one horizontal and one vertical - I had to cut the horizontal sleeve down by about 3 cm to fit - the pipe temperature was ambient (say around 20C) - I used the whole can, by 10 second squirts alternating between the two pipes (20 seconds would be fine as it took quite a few squirts) - the 415ml can weight was 152g when empty. I didn't weigh the can full as not necessary for my method. One could use a scales if you wanted to measure out half a can if freezing one 15mm pipe - noticed a slight bulge in the horizontal pipe after finishing where the spray was squirted in. Might be advisable to angle the nozzle around between squirts to reduce risk of splitting the pipe."
"In the past when I've need to freeze two pipes I've bought two lots of the single kit. This time I decided to use this kit as its much cheaper and it worked really well. I don't understand the other reviews on here saying it didn't work. I don't know how it couldn't work as the principle is so simple - just follow the instructions.
The only thing that concerned me was how would I know when I have delivered half a can. I decided to weigh the can and had some scales handy and kept quickly stopping application and weighing it. When I got down to about 400g I stopped and used that for the second pipe.
The problem I did have is that the first kit I ordered came without the extension tube. I returned it and the replacement kit also lacked the extension tube. The third one I received did have the tube and screwfix kindly gave a fiver voucher and sent me a third kit gratis."
"Well bought this kit yesterday and used it today, as the job I was doing had no valve, I followed the instructions to the letter and when I started to cut through the pipe I go wet so I had to continue locally I had every thing to hand as I was putting a valve on straight away. the reason I would recommend it is purely I would expect it to work great with copper, as I was trying to freeze a grey plastic Pipe so beware if your going to do this."
"'First time user' and was not sure of outcome. However, having followed the instructions to the letter, I did not encounter any problems on two 15mm pipe isolations. Made a point of cleaning pipes of paint etc. before freezing! Will use again if a situation arises."
"I Have just tried this kit on two plastic 15mm pipes under my floorboards and feel that I should tell my experiences. The Kit says it will freeze only one plastic pipe so i bought two . Following the instructions to the letter I started to spray the liquid into the jacket but at nearly the half a can stage it started to come out of the foam and every time I sprayed a bit more it came out again. I decided then that the jacket must be saturated and that I was wasting the spray. After a Tem minute wait and with some apprehension as I had only used half the amount I should of I cut the pipe and to my relief it was plugged. Two minutes of work and holding my breath later the work was done and dusted and I was a Happy chappy. So to anyone Who tries this kit and has the same situation . DO NOT WORRY. Ps The Pipe stayed frozen foe a further 15 minutes ."
"Used the freezer kit to change 2 radiator valves. Easy to use and does the job. Like other reviews found it difficult to gauge half the aerosol. My first application gave me 20 mins which was time enough to change the valve . Some means of showing what has been used and what is left should be included, if it was then my score would be all 5 stars."
"This product is spot on, however, the description on the screwfix web site could be better (surprise!)
The product claims to do 2 x 15mm pipes, great I thought, I only need one kit. Rushed out to get one, got it home and on the box it says, that if you have plastic pipes, it's only enough for 1 application for a 15mm pipe.
I've now got to trek back out and get another. Poor show screwfix."
"Not a bad product. It does what it says it will do as long as you follow the instructions and stay patient. However, this is an expensive way of doing things, especially as you can get caught out having to buy two cans for larger pipe sizes. so I would only use when absolutely neccessary"
"I wanted to fit a new radiator, but didn't want to de-pressurize or drain the system, so this product was ideal as it allowed for two pipes to be frozen. In my case both the flow and return had to be re-routed from the previous radiator position.
I had been pre-warned to ensure that there was sufficient spray left in the can for the 2nd pipe. Not knowing exactly what an empty can weighed, it was a bit of a guess. I weighed the full can, then took 20 grammes off, halved the remainder and added the 20 grammes back, which should have given me the weight to aim for after the first use.
In fact I was a fair bit out, but got away with it. I had plenty of time to cut the pipes and make the new connection, but I noticed that the time taken for the 2nd ice plug to clear was much shorter than the first one.
In fact an empty can weighs 125 grammes and it would be helpful if the manufacturers put that on the info sheet. Then it's really easy to gauge how much you've used on the first application. Just stop spraying periodically and weigh the can.
All-in-all a satisfactory product, provided that you apply a little savvy."
"I've used this technology successfully several times in the past and this week we had a leak from the central rotating part of a 15mm service valve in the central heating. I'd just refilled the system with about £40 worth of new inhibitor this summer, so did not fancy draining it again. This is why it's worth paying what must be over the odds for a can of freeze spray! On one side the pipe was curved in a slow S shape and there was only 200mm to a T junction, but it still worked fine. If you chill the pipes first with a bag of ice cubes/ frozen peas or whatever, you can get away with only 120g of coolant per side (for 15mm pipe). Scales essential as other reviewers have mentioned. By the way, if you have to change a service valve like this, I have always got away with using the same olives - just change the valve body."
"This product works well when the circumstances are favourable. If you have a nicely exposed pipe of 200mm in length it is 100% reliable. The caveat is that the product will NOT work as advertised when there is limited access. It will NOT work if you have a short stub of pipe (less than 200mm) projecting from a wall or floor. It will NOT work if the only exposed pipe has a bend or an angled joint in it. Straight exposed runs - 100% reliable. Awkward access - no chance I'm afraid."