<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.2900.3059" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Tahoma size=2>    Hi Geoff:</FONT></DIV> <DIV><FONT face=Tahoma size=2>    The general thinking is that CA will hold even better on pinblocks that have been previously treated.  I would however, check for signs of delamination and cracking.  I usually remove the fallboard and visually check with a good light and mirror if needed as well as feeling all over the block as best you can especially at the edges.</FONT></DIV> <DIV><FONT face=Tahoma size=2>    Mike Kurta</FONT></DIV></BODY></HTML>