The Best Adhesive Accelerators

Understanding Adhesive Accelerators

Adhesive accelerators, often referred to as "kickers" or "primers," are chemical compounds that significantly reduce the curing time of certain adhesives, most commonly cyanoacrylates (super glues). They work by initiating or speeding up the polymerization process. This is particularly useful when bonding porous materials that absorb the adhesive, or when working in low-temperature conditions where natural curing is slow. Choosing the right type depends on the adhesive you are using and the substrates you are bonding.

Types of Accelerators

• Cyanoacrylate Accelerators: These are the most common type, designed specifically to work with super glues. They come in liquid and aerosol forms. Liquid versions are typically applied to one surface before the adhesive, while aerosols can be sprayed onto the other surface after application.
• Epoxy Accelerators: While less common as standalone products, some epoxy formulations include accelerators to speed up their set time. These are often integrated into two-part systems.

Key Factors to Consider

• Adhesive Compatibility: Always ensure the accelerator is designed for the specific type of adhesive you are using. Using an incompatible accelerator can weaken the bond or prevent curing altogether.
• Substrate Material: Porous materials like wood, fabric, or some plastics can absorb liquid adhesives, hindering proper bonding. Accelerators help the adhesive set quickly on the surface before it can be fully absorbed.
• Environmental Conditions: Low temperatures and high humidity can slow down adhesive curing. Accelerators are invaluable in these situations, allowing for faster completion of tasks.
• Application Method: Consider whether you prefer a brush-on liquid, a spray, or a pen applicator for precise control. Aerosol sprays are good for covering larger areas quickly, while pens offer targeted application.

Comparison Tips

When comparing different products, look at the recommended application methods and drying times. Check for compatibility with the materials you'll be bonding, such as plastics, metals, or rubber. Some accelerators offer additional benefits like improved gap-filling capabilities or increased bond strength in certain conditions. Always read manufacturer guidelines for the best results and safety precautions.