#15,265 in Tools & Home Improvement
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Reddit mentions of 3M Fire Barrier Moldable Putty Stix MP+, Red, 1.45 in x 6 in

Sentiment score: 1
Reddit mentions: 1

We found 1 Reddit mentions of 3M Fire Barrier Moldable Putty Stix MP+, Red, 1.45 in x 6 in. Here are the top ones.

3M Fire Barrier Moldable Putty Stix MP+, Red, 1.45 in x 6 in
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    Features:
  • TESTED FIRESTOP PERFORMANCE: Tested and listed up to 4-hours in accordance with ASTM E814 (UL 1479) and CAN/ULC S115
  • STC RATED: STC-rating of 56 when tested in STC 56-rated wall assembly
  • READY TO USE IMMEDIATELY: One-part, ready-to-use, re-enterable, intumescent putty stick that can be easily formed to firestop through-penetrations and blank openings in fire-rated assemblies
  • CREATES A LONG LASTING SEAL: Provides draft and cold smoke seal
  • REMAINS WORKABLE OVER TIME: Will not dry out or crumble for a re-enterable and repairable solution
  • NONCORROSIVE: Will not corrode metal and is compatible with synthetic cable jackets
  • For industrial/occupational use only. Not for consumer sale or use
Specs:
ColorRed
Height8.4 Inches
Length7.9 Inches
Number of items1
Size1.45 inches x 6 inches
Weight0.1 Pounds
Width6 Inches

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Found 1 comment on 3M Fire Barrier Moldable Putty Stix MP+, Red, 1.45 in x 6 in:

u/drtonmeister ยท 2 pointsr/audioengineering

Best bet for the heating pipe is firestop putty. You can pack it with steel wool (if it's a steel or iron pipe) or copper cleaning pads (if copper) if you need to fill up space before sealing the pipe to the wall with putty.
If you have substantial openings between the plaster and the switch and outlet boxes, use expanding foam, and then caulk around the remaining crack with a non hardening caulk.
Use the same caulk for the baseboards and cracks at the edges of wall and ceiling.

Mass loaded vinyl could be a part of the "next step" of beefing up the mass and decoupling of the present wall, but as you say it is expensive. You would need it floor to ceiling for the length of the wall, and securing and covering it would be a construction project.