DIY: Does PU foam react with PVC cables

[Tricky Dicky]

I need to block up some holes through which some cables pass through, PU foam would be a quick and dirty way to do it. I was just wondering if PU reacts with PVC similarly to polystyrene?

Richard

[Dave Plowman (News)]

It's used with PVC windows, etc, so will rather obviously stick to it. But don't think it dissolves it.

[spuorgelgoog]

No, but it does thermally insulate the cables if cable rating is important.

Owain

[Tim Watts]

True - but a short insulated section doesn't have any significant effect as the heat can conduct lengthways.