Has any body experimented with the doublesided car body tape you can buy. It is foamed backed, albeit up to normally 1mm, I have seen slightly thicker versions, but was just wondering whether this was an alternative to track laying and ballast sticking in one go. It is heat resistant and does stick like proverbial, and would also have noise insulation properties. I have seen mentioned else where on here about normal double sided tape, but not this foam back type stuff.(I may have missed it of course).