The Roubloff GC23R is a high-performance series of flat synthetic brushes specifically engineered for the professional nail technician. This line is optimized for gel modeling and gel polish application, providing the structural tension needed to move viscous materials while ensuring a perfectly smooth, self-leveled finish.
Brush Highlights
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Professional Gel Modeling: These brushes are designed to handle "heavy" materials like builder gels and thick base coats, allowing for the creation of a perfect apex and nail architecture.
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Flat Profile: The rectangular, flat shape is essential for picking up an accurate "bead" of gel and spreading it with even pressure from the cuticle to the free edge.
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High-Grade Synthetic Hair: The bristles offer a specific "spring" or "snap" that maintains its shape even when working with high-viscosity gels. They are also highly resistant to the chemical cleansers used in nail artistry.
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Birch Handle: Features a lightweight, seasoned birchwood handle that provides the ergonomic balance required for the steady, slow strokes necessary to prevent air bubbles in the gel.
Model Numbers & Sizing
The GC23R line comes in various widths to accommodate different nail plate sizes and modeling speeds:
| Size | Model Number | Recommended Use |
| #4 | GC2-04,0RN | Precision work, smaller nail plates, and detailed side-wall application. |
| #6 | GC2-06,0RN | The "standard" size; ideal for most manicures and building the nail apex. |
| #7 | GC2-07,0RN | Wider surface area for faster application on long extensions or large nail beds. |
| #8 | GC2-07,0RN | Maximum width, perfect for thumb nails and broad gel overlays. |
Key Applications
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Architectural Modeling: Building the structural strength of a nail extension with builder gel.
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Streak-Free Overlay: Applying gel polish or top coats with a "floating" technique to ensure no brush strokes are visible after curing.
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Cuticle Precision: Using the flat edge of the brush to tuck the gel as close to the skin as possible without flooding the cuticle area.
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Surface Alignment: Smoothing out the gel surface before curing to minimize the amount of filing and buffing required.
Professional Care & Maintenance
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UV Protection: Never leave your brush near an active UV/LED lamp or in direct sunlight. Any residual gel on the bristles will cure instantly, making the brush unusable.
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Chemical Cleaning: Clean the bristles using a professional nail cleanser or a dedicated "brush restorer" liquid. Avoid prolonged soaking in pure acetone, as it can eventually dry out and "frizz" the synthetic fibers.
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Wiping Technique: Gently wipe the brush on a lint-free wipe in the direction of the hair growth to maintain the flat, sharp edge of the bristles.
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Storage: Store the brush horizontally or tip-up with a protective cap to prevent the fibers from bending or gathering dust, which can cause debris in your gel application.