Undermount Sink Form For Concrete Countertops

8 foot self adhering flexible sink form.

Undermount sink form for concrete countertops.

For double bowl sinks the sink form can be notched with a utility knife to bridge the divider. One flat sink form 8 long. For concrete countertops the concrete should not bear the weight of the sink. Installing an undermount sink in a concrete countertop is similar to installing it into other countertops with a few small but important differences.

Types of sink supports. Self adhering will conform to most undermount sinks sink must have vertical walls. Fast and easy to make a form around an undermount sink when making a cast in place concrete countertop. The process can be long but patience will yield some satisfying results.

An example of this can be seen in photo 54 in the website gallery. Will conform to most undermount sinks. Long x 3 1 4 tall self adhering flexible sink form. For tight radius corners sink form can be heated with a blow dryer or heat gun to soften the plastic so it bends easier.

Instead you build a support out of plywood and the cabinet frame together with the support bear the weight of the sink. The sink form may be re usable when using new. Sink must have vertical walls. Will conform to most undermount sinks.

Use with cast in place countertop forms sold here. Sink must have vertical walls. Form is 3 25 wide.