Expanding Foam Problems

[Stuart]

I got a canister of expanding foam from Screwfix a few weeeks ago along with the screwin nozzle but only got to using it yesterday to fill in a void where the toilet waste goes through a wall where i had put up plasterboard .It was really just to tidy it up . I found the nozzle had a leak near the trigger end and foam was spewing out so I didn't continue but it seeemed that what foam did come out did not expand much,if at all......does it need to be in a compressed space to work or what .?????..I'l just fill the gap with newspaper and plaster over ...that'll do

Stuart

[mrcheerful]

expanding foam needs a bit of damp to really get going well.

[meow2222]

or a canoe

NT

[Stuart]

Ah right ...I missed that bit on the instructions....to dampen the area before applying the foam ....

I'll try and get a new nozzle from Screwfix or elsewhere if they sell them seperately ..... thx for that .

Stuart

[Broadback]

If the nozzle is clogged with the foam then clearing it with acetone is a doddle, if you have a wife/girlfriend, or even use it yourself, nail varnish remover is the same. ;-)

[Stuart]

No.That's not the problem .It is a hole near the trigger part but anyway Screwfix are sending me another can and nozzle to replace it ...

Stuart

[Andy Dingley]

Nail varnish remover has been ethyl acetate for the last few years. No damn use for anything, compared to acetone.

[Stuart]

When I ordered the original can of foam I also got a can of gun cleaner as well as I remember the trouble I had before in getting the stuff off the nozzle ..'orrible stuff it is ..

Stuart

[Dave Fawthrop]

|On Fri, 23 Jun 2006 18:26:20 +0100, Broadback |wrote: | |>If the nozzle is clogged with the foam then clearing it with acetone is |>a doddle, if you have a wife/girlfriend, or even use it yourself, |>nail varnish remover is the same. ;-) | |Nail varnish remover has been ethyl acetate for the last few years. No |damn use for anything, compared to acetone.

I have given up using large tins of foam. Cleaning nozzles is too much hassle. I buy cans large enough to do the job and throw them away. :-(

[The Natural Philosopher]

Not all of it. Plenty of acetone based stuff.

I bought a nice 1/2 liter of acetone yesterday at a trade show from a fiberglass supplier.

[Christian McArdle]

One of the brands comes with a choice of large and small nozzles, so you got two shots. I don't understand why you can't buy a pack of disposable nozzles. It would be much less wasteful of the foam cans.

Christian.

[sm_jamieson]

When finished using, remove the nozzle, stick something (e.g. wooden skewer) in both ends. Then when dry, pull/twist out the sticks and the foam comes with it. You can then re-use the nozzle. Simon.

[Mathew Newton]

I can recommend the use of a foam gun, e.g.

only does it mean you can use larger cans over several jobs without having to faff around cleaning/unblocking nozzles but it also give you greater control and accuracy when applying the nasty stuff.

Mathew

[Dave Fawthrop]

|> I have given up using large tins of foam. Cleaning nozzles is too much |> hassle. I buy cans large enough to do the job and throw them away. :-( | |One of the brands comes with a choice of large and small nozzles, so you got |two shots. I don't understand why you can't buy a pack of disposable |nozzles. It would be much less wasteful of the foam cans.

Thanks I will have to look out for disposable nozzles :-)

[Christian McArdle]

Post if you find some. I'm sure loads of people would like them.

Christian.