<html> <body> jj, C/A stands for CyanoAcrylate, a type of "instant" glue.  In North America it is available in 3 thicknesses, and the thinnest is the type which will penetrate wood fairly well. The brand name of "Hot Stuff" is a common brand here.  There are others, though. Don Mannino RPT At 01:43 AM 3/9/2004, you wrote: <blockquote type=cite class=cite cite>Hello list,   I have been reading the various posts about treating a pinblock with loose pins by means of CA glue with great interest, and I think I understand the methodology. The one thing that leaves me preplexed is the exact identity of the glue involved. Would someone explain what type of glue this is (is CA a brand name or do the latters stand for its chemical composition). I am working on a old upright with just that sort of problem, and this method might just save me from having to replace the pinblock.   Thanks   jj</blockquote></body> </html>