HELP - What type of Castable for Vent?

[thebadger]

My brick dealer is placing an order and can add some castable material from the manufacturer on the order. My question is what castable should I buy for my vent...

Needs to hold 8-9 feet of duravent
Will have to cure in place

I was thinking of the following:
KS-4 Plus
PacoCast
Heat Cast - 40 (same company that makes Heat Stop)

Fast replies would be appreciated...

Thanks
Dick

[wlively]

Re: HELP - What type of Castable for Vent?

I used KS-4, cast in place, and cured in place. KS-4 is very solid and easy to work with. No problems. I would not only use it again, but would proabably cast my entry and event in one piece if I were to do another one.

Don't forget the stainless needles.

I posted a couple of picts a while ago. Search vent casting and you should find them.