Pipe soundproofing

[connorhawke]

There's a pipe that runs between the floor and ceiling in the corner of my apartment bedroom that makes periodic hammering noises related to building heating that plumbers I've used claim they can't fix. As at least a temporary workaround I'm considering using soundproofing to dampen the noise. Any recommendations on specific products or product categories, especially if they've worked for you? I've already looked at soundproofing wrap etc and may benefit from further research and advice. Thank you.

 

[connorhawke]

Used fiberglass insulation as didn't find wide-enough foam insulation at the usual stores near me; seems to do enough.