Message text written by "BP - \"where heavy conservationists hang out\""
>>I thought this was bad for masonry, or is the problem only
with water repellents and waterproof coatings, not with the penetrant
hardeners?

It.seems.to.me.that.typical.American.over-simplification.and.marketing.has.
giv
en.a.
bad.rap.to.the.current.state.of.the.evolution.of.silicon.chemistry,started.
in.
the.'50's.
<

My compliments to John Mascaro and everyone else in the industry who
recognizes the folly of oversimplification. My compliments to any other
manufacturer who makes the effort to try to deal with job and product
details, rather than concentrating entirely on sales volumes and market
share.

Anyone for heating up some give and take on the water repellent issue? It's
one of my favorite almost-taboo preservation subjects.

Mike E.