THAT leak

[Nickfromwales]

2 minutes ago, Pocster said:

Back it up Welsh Wizard with facts …. 🤨

They’re all single cell / partially closed, these ‘better’ ones, but are totally different animals to the foams from the sheds.

 

Cheap stuff is like crumbly honeycomb when set, and you can scrape it out with your finger, but the 330 is insanely better and when cured goes a lot harder / stretchier, and has far fewer voids in it.

 

Been using it for years on anything which needs airtight / cold / damp bridging to be resolved. Use it all around my windows when they were changed, and damp disappeared and hasn’t come back, much better. 

[Pocster]

Just now, Nickfromwales said:

They’re all single cell / partially closed, these ‘better’ ones, but are totally different animals to the foams from the sheds.

 

Cheap stuff is like crumbly honeycomb when set, and you can scrape it out with your finger, but the 330 is insanely better and when cured goes a lot harder / stretchier, and has far fewer voids in it.

 

Been using it for years on anything which needs airtight / cold / damp bridging to be resolved. Use it all around my windows when they were changed, and damp disappeared and hasn’t come back, much better. 

Don’t doubt you . But the spec should say something . I did use a soudal one ( so not cheap brand shite ) . I did just 1 glazed unit - I’ll see how it goes ( as the foam is in ) - if I determine the leak is still over the upstands I.e foams doing jack ; I’ll remove the glass next summer scrape out the foam and redo with your suggested weapon of choice . 

[Thorfun]

1 hour ago, Pocster said:

Don’t doubt you . But the spec should say something . I did use a soudal one ( so not cheap brand shite ) . I did just 1 glazed unit - I’ll see how it goes ( as the foam is in ) - if I determine the leak is still over the upstands I.e foams doing jack ; I’ll remove the glass next summer scrape out the foam and redo with your suggested weapon of choice . 

give the tech support department a call? 

[Pocster]

2 hours ago, Thorfun said:

give the tech support department a call? 

I did . I posted on here 

[Onoff]

Illbrück FM330 skins up like rubber and really tough rubber at that. It's actually quite noticeable when you cut it compared to even Soudal products which were my previous goto. 

[SteamyTea]

17 hours ago, Onoff said:

skins up like rubber

Integral skin polyurethane foams do that.

Used for making chair arm rests, and costing the steel hoop in car steering wheels.

If you cut it open, you will find a 2 or 3mm thick skin. 

It is created by temperature difference between the injected liquids that react and foam, and the tooling temperature.

 

With a bit of experimenting you can find the best temperature to heat the can up to get it to either skin on the contact surface or the air interface.

 

Alternatively, and maybe easier, foam up with something strong enough, then coat the outside with non foaming PU.

In effect, creating your own skin on outside.

(Thinking while typing the above, paint the joint with non foaming PU, foam, then paint outside with non foaming)