Quick answer
Use the Premium Diamond Shape 80/80 File in a controlled, one-directional motion to shape acrylic nails without overheating or chipping the surface.
Why 80/80 grit works for acrylics
The 80/80 grit rating means both sides of the file have the same coarse texture. This is ideal for acrylic nails because it removes material quickly without being overly aggressive. A coarser grit (like 80) shapes and shortens acrylics efficiently, while a finer grit (like 100 or 150) is better for smoothing edges. With 80/80, you get consistent shaping on both sides, which reduces the need to switch files mid-process.
Avoiding common mistakes
One frequent error is sawing back and forth, which creates heat and can cause the acrylic to crack or lift. Another is pressing too hard—let the grit do the work. The diamond coating on this file is designed for professional use, so a light touch is all you need. Also, always file in one direction to maintain control and prevent uneven edges.
Step-by-step filing process
- Prepare the acrylic surface: Ensure the acrylic is fully cured and free of dust. Hold the file at a 45-degree angle to the nail edge. Filing uncured acrylic can cause chipping or lifting.
- Shape the free edge: Using the coarse side of the 80/80 file, file from the side to the center in one smooth stroke. Repeat on the other side to create the desired shape (square, almond, etc.). Do not saw back and forth—this creates heat and weakens the acrylic.
- Refine the surface: Lightly buff the top of the acrylic with the same side to remove any bumps or ridges. Use gentle, even strokes. Over-buffing can thin the acrylic and reduce durability.
- Smooth the edges: Flip the file and use the other 80/80 side to soften any sharp corners or rough spots along the nail tip. Check edges with your fingertip—if it snags, file a bit more.
- Clean and finish: Wipe away dust with a brush or lint-free wipe. Apply a top coat or sealant to protect the filed surface. Leaving dust on the nail can cause lifting under polish.
Product facts
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Premium Diamond Shape 80/80 File (10 pcs): The Premium Diamond Shape 80/80 File from THE 2GUYS SHOP has a dual-grit rating of 80/80 for smooth filing and a diamond-shaped tip for precision. The consistent coarse grit on both sides allows you to shape and refine acrylics without switching files, saving time and reducing the risk of overheating.
Premium Diamond Shape 80/80 File (10 pcs)