Multi-Purpose Bonding Primer | High Adhesion Surface Treatment Agent for Concrete, Mortar and Tiles
LG660 is a water-based, multi-purpose bonding primer that improves adhesion between self-leveling compounds, mortars, and absorbent substrates. Apply it with a brush or roller; it dries quickly to help you continue the project sooner, reducing downtime.
LG660 keeps your project moving faster. It dries in just 15–30 minutes, allowing you to apply the primer and proceed directly with self-leveling or mortar work the same day—no overnight waiting and no wasted time. Because it is ready to use straight from the bucket and requires no mixing, you save application time and reduce the risk of mixing errors. With a coverage rate of 6 m² per liter, one 20 L bucket covers up to 120 m², delivering excellent value and helping keep material costs low. Faster drying, easier application, and improved coverage help every job finish sooner.
LG660 is the critical foundation for long-term performance of your flooring system. By creating a strong adhesive bridge between the substrate and overlay, it significantly reduces the risk of delamination, blistering, and bond failure—the most common causes of self-leveling floor issues. It is suitable for the complete LANGUAN product line: self-leveling compounds, tile adhesives, plastering mortars, anti-crack mortars, repair mortars, and waterproofing membranes. Compatible with all absorbent substrates, including concrete, cement screeds, plasterboard, fiber cement boards, AAC blocks, and clay bricks—one primer for every substrate.
LG660 is suitable for both indoor and outdoor use, on walls and floors. One product covers all your priming needs across the entire project, simplifying inventory management and training. Its water-based formulation is non-toxic with low odor, making it suitable for occupied buildings and enclosed spaces, and tools are easy to clean using only water. For highly porous surfaces such as autoclaved aerated concrete (AAC), apply a second coat—no special product is required. Backed by German technology and ISO 9001 certified quality, LG660 delivers consistent, reliable bonding performance you can depend on job after job.
Color |
White |
Mixing ratio |
No mixing required |
Coverage rate |
6 m²/L (reference) |
Drying time |
15–30 min (reference) |
If you are interested in our products, you can choose to leave your information here, and we will be in touch with you shortly.