Found it!
 
Anti-Bond (sounds like the villain in a cheesy 1970s spy movie)
 
http://www.westmarine.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10001&langId=-1&catalogId=10001&productId=51839
 

Giles Morris
Arlington VA

Montgomery 15 "Umiaq"
Vancouver 25 "Dolphin"
Miscellaneous small craft

-----Original Message-----
From: Sandyal55@aol.com [mailto:Sandyal55@aol.com]
Sent: Tuesday, February 18, 2003 7:44 PM
To: montgomery_boats@mailman.xmission.com
Subject: Re: M_Boats: removeing old bedding compound?

There is a product available in the marine stores that softens old bedding compound. I wish I could remember what the name is. You just spray it on and wait while it works for you. Ask the local marine store or West Marine online.

Sandy