why are my sanding discs not sticking

If your sanding discs are not sticking properly, there could be several reasons for this issue. Here are some common factors that may cause sanding discs to not adhere effectively:

1. **Wrong Type:** Some sanding discs are designed with a pressure sensitive adhesive (PSA) while others use a hook and loop (Velcro) system. If you try to use a PSA sanding disc on a hook and loop pad, it will not stick effectively. You will need to verify the sander disc type or contact the Abrasives Master professional staff.

2. **Surface Contamination:** Dust, oil, or debris on the backing pad of your sander can prevent the sanding discs from sticking properly. Clean the backing pad thoroughly before applying a new sanding disc.

3. **Worn Backing Pad:** The backing pad of your sander may be worn out or damaged, which can reduce the adhesive surface area and cause difficulty in keeping the sanding disc in place. Consider replacing the backing pad if it is no longer in good condition.

4. **Improper Alignment:** If the sanding disc is not aligned correctly with the backing pad or if there are wrinkles or folds in the disc, it may not adhere properly. Ensure that the disc is centered and applied evenly to the backing pad.

5. **Low Adhesive Strength:** Check the quality of the adhesive on the sanding disc. Some discs may have weaker adhesive properties, leading to poor adhesion. Consider trying a different brand or type of sanding disc.

6. **Heat Buildup:** Excessive heat generated during sanding can weaken the adhesive bond between the disc and the backing pad. Avoid prolonged sanding in one area and allow the sander to cool down periodically.

7. **Humidity or Temperature:** Extreme humidity or temperature conditions can affect the adhesive properties of the sanding disc. Store your sanding discs in a cool, dry place and consider the environment in which you are using them.

By addressing these possible causes and ensuring proper storage, handling, and application of sanding discs, you can improve their adhesion and ensure a more effective sanding experience.