Description
Z-Counterform Sink Form (8 ft)
Create flawless undermount sink openings in your cast-in-place concrete countertops with this professional-grade, self-adhesive flexible sink form. Designed to work seamlessly with most undermount sinks that have vertical walls, this 8-foot-long x 3-1/4-inch-tall form easily conforms to curved corners and irregular shapes for a perfect fit every time.
Key Features:
- Self-adhesive backing for quick, secure installation—no extra tape or mess
- Flexible design adapts to most standard undermount sinks (single or double bowl—may require simple notching for dividers)
- Creates clean, precise sink cutouts with smooth edges ready for polishing
- Ideal for DIY concrete countertop projects or professional installations
- Compatible with popular systems like Z Counterform for cast-in-place pours
Perfect for kitchen remodels, bathroom vanities, or custom bar tops. Just peel, stick to the sink interior, form your countertop edges, pour, and reveal a seamless undermount integration. Saves hours compared to traditional blocking or foam methods.
Specifications:
- Length: 8 feet (96 inches)
- Height: 3-1/4 inches
- Material: Durable, flexible composite with strong adhesive
- For sinks with vertical sides and rounded interior corners
Get pro-level results without the hassle—add to cart now and elevate your concrete countertop game!





