Heat Spikes Guide: Prevention Tips for Nail Technicians

A heat spike is a sudden sensation of heat or burning that clients may experience when their nails are curing under a UV/LED lamp. This can happen during gel polish application, BIAB™ (Builder In A Bottle™), or other nail enhancement services. The intensity of heat spikes can vary from mild warmth to an intense, painful sensation that requires immediate attention. 

Heat spikes occur due to the polymerisation process, where gel products harden or cure. During polymerisation, monomers (liquid molecules) in the gel react with the curing light and form long chains of polymers (solid molecules). This chemical reaction generates heat.  

1. Product Thickness: Applying gel too thickly can cause a more intense heat spike as the lamp works overtime to try and polymerise the product. 
2. High Pigment Density: Highly pigmented gels can cure more rapidly, leading to more heat being generated in a short period.  
3. Curing Lamp Intensity: The wattage and intensity of the UV/LED lamp can directly affect the rate of curing and the amount of heat produced during the process.  
4. Client Sensitivity: Some clients are more sensitive to heat and may feel discomfort more intensely than others.  

One of the most effective ways to prevent heat spikes is to apply gel in thin, even layers. Thick applications increase the amount of heat generated during curing. Build up gel layers gradually, allowing each layer to cure properly before applying the next. This technique not only prevents heat spikes but also ensures better adhesion and longevity.  

Invest in high-quality gel nail products that are designed to cure evenly and generate less heat. Some gel formulations are specifically engineered to minimise heat spikes.  

• Gradual Curing: Some UV/LED lamps have settings for gradual curing or lower initial intensity. Start with a low intensity setting, gradually increasing to full intensity. This allows the gel to begin curing slowly, reducing the sudden heat surge.  

Inform your clients about the possibility of heat spikes and reassure them that it is a normal part of the curing process. Let them know they can remove their hand from the lamp if the heat becomes uncomfortable and that you will proceed more slowly to ensure their comfort.  

Pay close attention to your client’s reactions during the curing process. If they express discomfort, take immediate action by lowering the lamp intensity or pausing the curing process to allow the heat to dissipate.  

Despite taking precautions, heat spikes can still occur. Here’s how to handle them:  

• Pause and Cool: If a client feels a heat spike, have them immediately remove their hand from the lamp and wait for a few seconds. This pause allows the heat to dissipate.  
• Reassure and Adjust: Reassure your client that this is a common occurrence and adjust your application or curing method accordingly.