Description
The Dupont edge profile is a distinctive luxury edge treatment featuring a clean, straight step or notch on the front edge that creates architectural definition and visual interest. This template is specifically optimized for laminated 2cm+2cm granite constructions (total thickness 1-9/16 inches) and includes specialized parameters for working with natural granite's crystalline structure. The stepped design showcases the lamination seam as an intentional design element rather than hiding it, making it popular in contemporary and transitional kitchen designs. Granite-specific optimization includes higher baseline RPM settings (2800-4000 RPM range) compared to softer materials, and a complete 9-position polishing sequence from 50 grit metal bond through buff. The template incorporates a dedicated seam polishing pass at 2500 RPM to ensure the lamination line is perfectly flush and polished to the same standard as the vertical edge surfaces. Fabricators appreciate this profile for its clean lines, moderate fabrication time, and the premium $18 per linear foot pricing it commands.
Related Templates
Bird's Beak Edge Profile (Granite) - 2cm+2cm Laminated
Bird's Beak Edge Profile (Marble) - 2cm+2cm Laminated
Bird's Beak Edge Profile (Porcelain) - 2cm+2cm Laminated
Bird's Beak Edge Profile (Quartz (Engineered)) - 2cm+2cm Laminated
The Dupont edge profile is a distinctive luxury edge treatment featuring a clean, straight step or notch on the front edge that creates architectural definition and visual interest. This template is specifically optimized for laminated 2cm+2cm granite constructions (total thickness 1-9/16 inches) and includes specialized parameters for working with natural granite's crystalline structure. The stepped design showcases the lamination seam as an intentional design element rather than hiding it, making it popular in contemporary and transitional kitchen designs. Granite-specific optimization includes higher baseline RPM settings (2800-4000 RPM range) compared to softer materials, and a complete 9-position polishing sequence from 50 grit metal bond through buff. The template incorporates a dedicated seam polishing pass at 2500 RPM to ensure the lamination line is perfectly flush and polished to the same standard as the vertical edge surfaces. Fabricators appreciate this profile for its clean lines, moderate fabrication time, and the premium $18 per linear foot pricing it commands.
Installation Overview
Fabricating the Dupont edge on laminated granite requires attention to both the edge profile and the horizontal seam between the two 2cm layers. Begin by verifying the lamination bond is fully cured (minimum 4 hours, preferably overnight) and that the seam is positioned at exactly 0.787 inches from the bottom edge as specified. Secure the slab with adequate edge support to minimize vibration during the 25mm roughing finger bit operation at 3500 RPM. The straight step geometry machines quickly compared to curved profiles, but requires precise depth control to maintain consistent step dimensions. After roughing, the dedicated seam polishing pass is critical to blend the lamination line into the overall edge finish. Progress through the 8-position polishing sequence, paying special attention to maintaining consistent pressure across the step transition. Total fabrication time averages 30-40 minutes per linear foot for granite.
CNC Cutting Notes
Program the Dupont edge profile with careful attention to the step geometry, ensuring sharp internal corners without rounding. Use a 25mm roughing finger bit at 3500 RPM with feed rates of 80-100 inches per minute for granite's hardness. The straight-line cuts machine faster than curved profiles but require precise X-Y-Z axis coordination to maintain the step depth at 1.5 inches from the slab face. After roughing, immediately run the seam polishing pass at 2500 RPM with a flexible backing pad to address the horizontal lamination seam before proceeding to edge polishing. During the polishing sequence, start with 50 grit metal bond at 2800 RPM and progressively increase to 4000 RPM for the final 3000 grit and buff positions. Granite tolerates higher RPMs than softer materials, but monitor for heat buildup on dark-colored granites which can show water spots if polished while hot. Maintain continuous water flow during all operations.
Material Compatibility
This template is specifically optimized for natural granite materials in laminated 2cm+2cm construction. Granite's crystalline structure responds well to the higher RPM polishing sequence specified (2800-4000 RPM range) and produces excellent polish quality through the complete grit progression. The material's hardness (Mohs 6-7) means longer tool life compared to softer stones. Works on all granite colors and patterns including blacks, grays, whites, and exotics. The laminated construction provides the thickness needed for the stepped profile while reducing material costs compared to full 3cm slabs. For similar profiles on other materials, see the material-specific variants (marble, quartz, quartzite, porcelain, ultracompact) which have optimized RPM and grit sequences.
Where to Buy
Download this Dupont edge profile DXF template free from SlabWise. Compatible with all major CNC stone fabrication systems including Intermac, Park Industries, GMM, and Prussiani machines. Granite slabs in 2cm thickness are available from local stone yards and distributors. Diamond tooling for laminated edges including 25mm finger bits and metal/resin bond polishing pads can be purchased from Alpha Tools, Weha, Braxton-Bragg, or other stone fabrication suppliers.