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White caulking material?

Brad White_171
Brad White_171 Member Posts: 22
most likely.

Here is what is in my specifications as manufacturers to check out:

1) Benjamin-Foster (BF)
2) Chicago Mastic (CM)
3) Insul-Coustic (IC)
4) 3M
5) St. Clair Rubber (SCR)
6) Vimasco (V)
7) Baldwin-Ehret-Hill (BEH)
8) H.K. Porter (HKP)


  • Daniel_3
    Daniel_3 Member Posts: 543

    At the ends of every fiberglass covering on the steam mains there is a white caulking material which seals the ends. What is this stuff?
  • Daniel_3
    Daniel_3 Member Posts: 543


    Check this link for picture dscn1947 to see the stuff. It was used very recently as all the steam pipes were replaced in the past 4 or 5 years and insulated.
  • Brad White_171
    Brad White_171 Member Posts: 22
    They look similar

    to the Insul-Coustic material (which remains pliable). Comes in caulking gun cartridges and plastic buckets. Sticks to everything....Most of the other cements dry with a flat finish, such as PorterLag.
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