Using a sink mold sold here you can place the mold as part of your form work and pour the sink as part of the countertop this is a great option for overall strength of the concrete.
How to build a concrete sink form.
Some also have molds to make vessel sinks see bathroom products design catalog.
How to build a gfrc concrete sink.
Next set the steel in the half filled form.
Molded edges can be rough like broken stone or smooth and rounded.
Once the second form is built it sits on top of the first form.
To leave room for these fixtures you can build recesses into the form as in the picture above.
Attach these to the base form with wood braces and screws.
I m building this second part of the form separate from the base to prevent excess debris falling into the pour area.
If so the form you build must include cutouts for the sink itself and if necessary for a faucet.
Concrete countertop molds are made by a variety of countertop mold manufacturers each offering a unique benefit.
Set the expanded lath first and then the steel mesh on top of it.
Fill up the rest of the form with concrete until it s flush with the form rails.
Make sure that none of the steel touches the edge of the form as this will show through in the finished vanity.
The exception to this is the edges which often are made with a molded edge form available from a variety of sources or make your own rubber edge forms.
Most countertop experts shy away from integral concrete sinks as a primary kitchen sink.
The other option is to simply use a knockout mold to create an opening for a stainless steel or porcelain sink.
I have been wanting to build some furniture out of concrete for a while and whilst doing a home renovation i got the opportunity to build a small sink for a bedroom ensuite.
The box is 2 wider than the sink mold on all sides and sloped in the front to follow the slope of the.
Next build the second part of the form on top of this base.