Ask for backer rod and Vulcem. If they have no Vulcem, ask for
NP1 or SL1. If they don't know what any of these polyurethane
caulks are, go to a better store.

(top posted for your convenience)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Keep the whole world singing . . . .
DanG (remove the sevens)




wrote in message
oups.com...
It's just aesthetic (and a little practical), but I want to fill
the
gaps in my driveway. They had felt, once upon a time, but as it
stands, the joints between the concrete slabs are slowly getting
deeper
as rain washes through them. They collect leaves and other
trash and
are a pain to keep clean. Can I just get new felt and jam it in
there?
I know not to put in anything rigid, but the drones at Lowes &
HD seem
to feel that it is impossible to put in a joint after the
concrete is
poured. True?