Prep causes
| Cause | Fix |
|---|---|
| Oil or moisture on the nail plate | Dehydrate and cleanse thoroughly immediately before base/primer application; any oil introduced after dehydration restarts the problem |
| Insufficient pterygium removal | Gel sitting on even a thin layer of dead cuticle skin will lift as cells shed; take time with cuticle prep |
| Skipping primer or base gel | Builder gel requires the correct base for the system — follow manufacturer guidance exactly; different BIAB and hard gel products have different primer requirements |
| Incorrect surface texture | Too smooth (no adhesion) or too rough (uneven layer) both cause problems; use the appropriate file grit for your product system |
Application causes
| Cause | Fix |
|---|---|
| Flooding the cuticle or sidewalls | Builder gel flooding cuticles is one of the most common lifting causes; product on skin always lifts; apply with 0.5–1mm gap from all skin |
| Thick application layers | Builder gel must be applied in layers the lamp can cure fully; very thick single applications leave under-cured gel in the centre that causes stress and lifting |
| Incorrect product for the nail type | Softer BIAB products aren't suitable for very short bitten nails with no natural plate to adhere to; match product to nail type |
| Air between layers | Ensure each layer is pressed and smoothed before curing; air pockets break adhesion |
Curing causes
- Builder gel is thicker than gel polish and requires longer cure times — always follow product-specific guidance
- Under-cured product shrinks slightly as it cures further post-appointment, pulling away from the nail plate
- Lamp compatibility — check that your lamp wavelength matches your product system; not all lamps work with all builder gels
Infill-specific causes
- Not filing back the shine at regrowth: The grown-out nail plate at the base needs the shine removed to allow the new product to bond; skipping this leaves a glossy surface under fresh builder gel
- Leaving a visible product ridge at the regrowth: A hard step between old product and new nail plate creates a weak point; blend the existing product edge smoothly
- Not re-applying base/primer to the regrowth area: The newly exposed natural nail at the cuticle needs the same prep as a fresh set
- Leaving old lifting product: Never layer new product over lifted sections; remove the lifted area first
Client-side causes
- Harsh cleaning chemicals without gloves breaking down the bond
- Picking at lifting edges — which makes lifting spread faster
- Not coming back for infills on time — very grown-out nails create mechanical stress that causes lifting
- Oil-based hand products applied too soon after the appointment
Builder gel application technique: builder gel application guide.
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Start free →Frequently asked questions
Should builder gel need primer?
This depends on the specific product system — some builder gels include a bonding base, others require a separate primer or base gel. Always follow your product manufacturer's instructions. Using the wrong base, or skipping it, is a primary cause of builder gel lifting.
Why does my builder gel lift only at infills?
Lifting that begins or worsens at infill stage is usually caused by infill technique: not filing back enough to remove shine at the regrowth area, leaving a ridge that product bridges over rather than bonds to, or not re-applying base/primer to the exposed natural nail during the fill.
