Micro-Sanding Face-Frame Reveal Lips Without Rounding Edges

Face frames define the precision of cabinetry—especially where reveal lips meet doors and drawers. Over-sanding these delicate edges can soften crisp profiles, ruin alignment, and create uneven gaps. In this guide, you’ll learn how to micro-sand face-frame reveal lips for a flawless, factory-sharp look without losing edge definition.

Why Sanding Control Matters

Reveal lips—those thin ledges around openings—are visual alignment points in fine cabinetry. Each edge must remain flat and consistent across the frame. Over-sanding, especially with flexible pads or worn paper, rounds corners and alters reveal depth. Micro-sanding preserves geometry while removing mill marks and prepping for finish.

Recommended Tools

• Rigid sanding block or micro-plane edge guide
• Detail sander with narrow pad
• 9x11" silicon carbide sandpaper sheets
• Folded edge protectors or painter’s tape
• LED raking light or inspection mirror

Ideal Grit Sequence

• 100 grit: Light mill mark removal
• 150 grit: Edge refinement and texture unification
• 220 grit: Pre-finish polishing for crisp reveals

Step-by-Step Edge-Safe Workflow

1. Protect adjacent surfaces. Mask finished or veneered panels with painter’s tape to prevent accidental scratches.
2. Level the reveal plane. Start with 100 Grit (25-pack) paper wrapped around a small, rigid block. Keep the block flat on the face—never tilt toward edges.
3. Refine by hand. Move to 150 Grit (50-pack) and sand lightly along the grain. Work slowly, focusing only on removing remaining scratches—not material thickness.
4. Micro-sand for finish prep. Use 220 Grit (100-pack) sheets folded to expose fresh edges. Glide over reveal lips with feather-light pressure for consistent sheen.
5. Check light reflection. Shine a low-angle LED light across reveals. Uneven reflection indicates high or low spots—correct gently using the same grit.
6. Dust and inspect. Vacuum surfaces, then wipe with a tack cloth. Avoid compressed air near joints—it can drive dust into corners.

Special Cases

For painted cabinetry, stop at 180 grit before primer—primer fills micro-scratches and creates a perfect bond. For stained or clear finishes, always end at 220 grit for maximum clarity. On MDF or veneer frames, use minimal pressure and avoid sharp grit transitions to prevent burn-through.

Pro Tips

• Cut sandpaper into narrow strips for better control in tight reveals.
• Use a sanding stick or emery board for ultra-fine correction along narrow edges.
• Replace paper frequently—dull abrasives generate heat and rounding.
• Work in good lighting; micro-defects become obvious under finish.
• Practice on scrap offcuts to dial in technique before touching actual cabinetry.

Aftercare

• Clean reveals thoroughly before finishing; dust can cause edge darkening under stain.
• Apply thin, even finish coats—avoid drips along edges.
• When re-finishing, scuff-sand lightly with 320 grit to maintain edge geometry.

FAQs

• How do I fix rounded edges? Use a small plane or sanding block to re-square the corner, then blend gradually with 150 grit.
• Can I use foam sanding pads? Only for curved reveals—on flat lips, rigid blocks keep accuracy.
• Do I need to seal before painting? For MDF or porous hardwoods, a sanding sealer prevents fuzz and uneven paint absorption.

Watch & Learn

Maintaining sharp, professional reveals requires control and finesse. For best results, use premium silicon carbide sheets from the wood sanding collection—designed for precision sanding and consistent cutting action.

Conclusion: Micro-sanding face-frame reveal lips is all about discipline and detail. By following the 100–150–220 grit sequence and using rigid backing, you’ll achieve crisp edges that elevate any cabinetry project to a true craftsman finish.