One flat sink form 8 long.
Undermount sink form for concrete countertops.
The process can be long but patience will yield some satisfying results.
For double bowl sinks the sink form can be notched with a utility knife to bridge the divider.
Use with cast in place countertop forms sold here.
An example of this can be seen in photo 54 in the website gallery.
Installing an undermount sink in a concrete countertop is similar to installing it into other countertops with a few small but important differences.
Form is 3 25 wide.
Will conform to most undermount sinks.
Instead you build a support out of plywood and the cabinet frame together with the support bear the weight of the sink.
Long x 3 1 4 tall self adhering flexible sink form.
Types of sink supports.
8 foot self adhering flexible sink form.
For concrete countertops the concrete should not bear the weight of the sink.
Sink must have vertical walls.
Sf001 sink form.
Will conform to most undermount sinks.
Fast and easy to make a form around an undermount sink when making a cast in place concrete countertop.
The first type of support is a commercial sink bracket sold by granite supply companies.
For tight radius corners sink form can be heated with a blow dryer or heat gun to soften the plastic so it bends easier.
The sink form may be re usable when using new.