All…. I have a client that would like to have a 6 run high foundation block exposure “finished ” I am in central Illinois ,variable weather extremes,vinyl siding above, one side allways sun , one side allways shade, sod at finished grade level, 38 I.S. and O.S corners with 90, 45, and 22 1/2 degree angles. Lookin for help with surface prep, application technique of any type material. Thanks All.
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Plain mortar parge coat or bonding coat like Stack'N' Bond. It is made for dry laid block but will adhere and trowel on mortar set block.
Me - I'd just stick with a plastered on parge coat.
Excellence is its own reward!
Piffin... Thanks for the reply. I don't mean to sound super stupid but I looked up the word parge and I think it's the same as what we call "back plastering " . Maybe if you could give me the reciepe ( i think it's mortar) it would help me see the light. Thanks
Nails,
Mortar is what Piff is refering to and you are correct in that it is another name for plastering. That said you should use either type M cement or better yet portland cement mixed in a 3 to 1 ratio of sand to cement (1 part cement 3 parts sand) . You could also just buy several bags of white portland cement and mix it to the consistency of heavy paint (in a wheel barrow) and brush it on with a floorbroom. If you do, you need to work fast because it will set up on you quickly. It makes a nice job and can be painted over if you like, however it looks good on its own, without paint. It becomes part of the wall being a cementious product. I have used it with great success several times on block walls. You need to wet the wall down ahead of where you are painting or you will greatly reduce the strength of the pargecoat/paintcoat not to mention make it a lot harder to put on. This is also a relatively cheap way of getting a good job both in looks and durability. Good luck.
Mark
I agree with piffen and the prof, but would use acrylic prep like Arcyl 60 before the parge coat. Brush on the Acryl 60 in an area you can cover in 30 miniutes and the trowel or brush on the mortar mix. I like to trowel on about a 1/4 inch parge coat and then use a rubber float to rub out the finish. The Acryl 60 is a terrific bonding agent. I add a little to the mortar when doing repairs, and have never had a patch pop off. The stuff makes mortar stick "like dried poop in a wool blanket".
Dave
Acryl 60 is a Thoroseal product. They make a complete line concret of patching and sealing products. Kind of expensive for a big job, but the Acryl 60 works with standard parge coat mortar.
Dave
Dave, I believe you about the bonding agent, but, just curious, how well DOES dried poop stick to a wool blanket?
That is the tightest end of the scale. The slickest end is "like snott on a door knob". In between you can break all else loose with a liberal aplication of WD-40.
Check out http://www.grailcoat.com
Formerly BEMW at The High Desert Group LLC