Bona D501 Adhesive Primer - 5L

1. **What is Bona D501 glue primer used for?**
**Answer:** Bona D501 is a water-based primer designed for use before applying Bona adhesives. It helps improve the adhesion of Bona silane-based adhesives on absorbent and porous surfaces, such as concrete and other subfloors.

2. **How do I apply Bona D501 primer?**
**Answer:** Bona D501 can be applied using a roller or brush in a thin and even layer. Ensure the surface is clean, dry, and free of dust before application. Allow the primer to dry completely (approximately 1-2 hours) before applying the adhesive.

3. **Can I use Bona D501 on non-porous surfaces?**
**Answer:** No, Bona D501 is intended for porous and absorbent surfaces only. For non-porous surfaces, it's recommended to use Bona R540, which is specifically designed for such applications.

4. **How long does Bona D501 take to dry?**
**Answer:** Under normal conditions (20°C and 60% relative humidity), Bona D501 takes approximately 1-2 hours to dry. However, drying times can vary based on temperature, humidity, and ventilation.

5. **Do I need to dilute Bona D501 before use?**
**Answer:** No, Bona D501 is ready to use and should not be diluted. Simply stir the product well before application.

6. **How much coverage can I expect from Bona D501?**
**Answer:** Coverage varies based on the porosity of the surface, but on average, you can expect around 5-10 square meters per liter.

7. **What surfaces are compatible with Bona D501 primer?**
**Answer:** Bona D501 is suitable for porous surfaces like concrete, cementitious screeds, and other absorbent subfloors. It should not be used on non-porous materials.

8. **Is Bona D501 environmentally friendly?**
**Answer:** Yes, Bona D501 is water-based and low in VOCs (volatile organic compounds), making it more environmentally friendly and safer to use compared to solvent-based primers.

9. **What precautions should I take when using Bona D501?**
**Answer:** Ensure the area is well-ventilated during application. Avoid skin and eye contact, and wear protective gloves and eyewear. Refer to the product’s safety data sheet for more detailed precautions.

10. **How should Bona D501 be stored?**
**Answer:** Store Bona D501 in a cool, dry place, away from direct sunlight and frost. The product should be kept in its original container with the lid tightly closed when not in use.