Description
The Z Counterform Quarter Bullnose Countertop Form is a patented, single-use extruded PVC plastic forming system designed specifically for cast-in-place concrete countertops, delivering a subtle 1/4 round (quarter bullnose) edge profile on the top exposed edge with a flat vertical face below, offering a gentle eased transition that balances modern sharpness with softened comfort and minimal post-pour finishing.
Key Technical Specifications:
- Material: High-quality extruded PVC (polyvinyl chloride), durable for single-use during concrete pouring and curing.
- Edge Profile: Quarter bullnose design — features a 1/4 round radius (approximately 1/4″–3/8″ radius, depending on exact mold geometry) on the top exposed edge, transitioning smoothly to a flat vertical face on the overhang side for an eased, user-friendly appearance without full rounding.
- Formed Edge Height/Thickness: Creates a consistent 2-1/4″ (2.25 inches / 57 mm) vertical edge thickness for the countertop slab.
- Installation Substrate Compatibility: Engineered for direct attachment to 1/2″ (12.7 mm) cement backer board (e.g., Durock or HardieBacker) fastened to cabinetry or structural supports.
- Attachment Method: Secured using 5/8″ x #10 panhead screws into the cement board substrate; no adhesives required.
- Backwall/Return Components: Includes matching backwall pieces to form the rear (wall-side) edge, ensuring uniform slab thickness and precise transitions.
- Forming Mechanism: Patented Z-profile geometry provides self-aligning hook engagement with the substrate edge for stable support during the pour; post-cure, forms are snapped off at engineered break points for clean, damage-free release, leaving a smooth, rounded-top concrete edge.
- Application: Optimized for horizontal cast-in-place pours over cabinetry; suitable for both DIY and professional residential or commercial installations seeking a subtly rounded, low-maintenance edge that reduces sharp corners while maintaining a clean, contemporary look.
- Performance Features: Enables fast setup and removal; produces high-quality edges with reduced air voids and minimal grinding/polishing required; compatible with standard concrete countertop mixes (e.g., high-strength GFRC or cast-in-place formulations); the quarter bullnose profile offers excellent durability and ease for moderate curves or detailed layouts.
This system streamlines the creation of quarter-bullnose concrete countertops, eliminating the need for traditional woodworking or reusable forms while delivering consistent, repeatable professional results. Ideal for achieving refined slab overhangs, clean inside/outside corners, and precise cutouts when used with complementary Z Counterform accessories.
Important Shipping Note – Oversized Item (Over 8 Feet Long)
This product exceeds 8 feet in length and cannot be shipped via standard parcel carriers (such as UPS, FedEx, or USPS) due to its size.
Standard shipping options are not available for this item.
To purchase, please contact Sealant Depot directly at (856) 829-7325 for assistance. We will be happy to discuss pricing, availability, and coordinate pickup at our location or arrange freight delivery (LTL or dedicated freight) to your address.
Freight shipping may involve additional costs, scheduling requirements, lift-gate services (if needed for residential delivery), or other arrangements depending on your location and access. We’ll provide a custom quote and handle the logistics to ensure safe delivery.
Thank you for your understanding—we appreciate your interest in this product!
