Adhesion problems: why does polygel lift?

1. Preparation: everything is decided here

Problem: moisture or oil remains on the nail plate

The nail is a living surface that constantly produces oil and moisture. If this is not properly controlled, the polygel will simply “slide off”.

Typical mistakes

• Using a file that is too fine (240 grit or higher) for matting
• Skipping dust removal
• Cuticle left on the nail plate (invisible, but still there)

Solution

• Use a 100/180 grit file with firm but not aggressive matting
• Use a dust-removal brush
• Apply an acid-free or acid-based prep product
• Completely remove the cuticle (not just push it back)

2. Primer / base coat issues

Problem: wrong product or too much base material

“More is better” does not apply here.

Typical mistakes

• Thick layer of primer or base coat
• Base coat not fully cured
• Mixing different brands

Solution

• Apply primer in a very thin layer
• For oily or problematic nails, use an acid-based primer
• Apply the base coat in a thin layer

3. Polygel application: small mistake, big problem

Problem: air gets trapped under the material

Air guarantees lifting, usually starting at the sidewalls or near the cuticle.

Typical mistakes

• Polygel is too dry due to insufficient slip solution
• Using too much slip solution
• “Pushing” the material onto the nail instead of pressing it down
• Applying the material too close to the cuticle

Solution

• Gently press the material into place, don’t drag it
• Use minimal slip solution; the material should not float
• Keep a 0.5–1 mm distance from the cuticle
• Pay special attention to the sidewalls

4. Lamp and curing: an underestimated factor

Problem: the material is not fully cured

Half-cured polygel may feel flexible, but it will lift within days.

Typical mistakes

• Weak or aging lamp
• Too short curing time
• Applying thick material in one layer

Solution

• Use a lamp with at least 10W output
• Follow the manufacturer’s recommended curing time
• For thicker builds, cure in two separate steps

5. Client-related factors

Problem: the nail “moves”

Some nails are extremely problematic, and this cannot be ignored.

Common causes

• Hormonal changes
• Medication
• Frequent exposure to water and chemicals
• Nail biting or picking

Solution

• Use a more flexible base coat
• Keep the nail length shorter
• Build a more precise apex
• Communicate realistic expectations

Summary

If polygel lifts after three days, there is almost always a reason: incorrect preparation, incompatible or overly thick base layers, air trapped under the material, or incomplete curing. Diamond Nails polygel will only be long-lasting if all of these steps are done correctly and consistently.