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Hey guys, help me out.
I’,m building a basement under an existing house one wall at a time (that’s another post). I’m getting ready to pour the first footing and have built some plywood forms. This will be for the footings only, the walls will be 12″ block. My question: do I need to use a form release and if so, what do I use? I won’t need very much. I will be reusing the forms for the other walls.
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Kerosene works, or you can buy form release oil from masonry supply.
-Rob
*For what you doing, used motor oil will work. Put it on with an old paint brush. Kerosene and diesel are also options. If it is fresh you can put it on with a garden sprayer. Otherwise, use a brush.
*I have used diesel, motor oil, and liquid dish soap. Not sure if any of these would in any way degrade the concrete.By the way, here in NC and VA we don't use forms on footers. Some of the readers here find this hard to believe or think it's substandard, but that's only because they don't know what red clay is really all about!
*Matt , neither do we , in twenty + years I've never seen a footing formed for residential construction in OK . We just dig the ditch , set grade pins ,tie the rebar and pour em . Hey Ed you guys form your footings in the Lone Star State ? Chuck
*Chuck,Yeah, they do. I think it's a city inspection thing. If I'm not pulling a permit, I wouldn't unless the ground was real soft.The lumber yard I deal with here in Dallas sells a grade of 4x8x3/4 oil impregnated plywood that the concrete companies use (and re-use) for form panels. I loaded some up by mistake once. It might make a good subfloor for the guy trying to protect his subfloor from the weather.When I was young and worked for ACME Brick, we used diesel as form release. Worked great. Put it on with a garden sprayer. ( see Steve Hansons post ).Ed. Williams
*Trench footers make it awfully difficult to install foundation drains.-Rob
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Hey guys, help me out.
I',m building a basement under an existing house one wall at a time (that's another post). I'm getting ready to pour the first footing and have built some plywood forms. This will be for the footings only, the walls will be 12" block. My question: do I need to use a form release and if so, what do I use? I won't need very much. I will be reusing the forms for the other walls.