Natural quartz sand NQS 4700 AS for slip-resistant EL+ systems
The economic alternative to silicium carbide (SiC)
Silicium carbide as an angular and highly wear-resistant special granulate has so far been used for fully sanding electrically conductive coverings to achieve a high slip resistance and robustness. Especially in the commercial and industrial sector, this high-performance material ensures reliable electrical conductivity and good mechanical stability of slip-resistant EL+ systems.
The increased demand for silicium carbide on the world market and the resulting possible production and delivery delays have prompted us to find a good technical and economic alternative. With the conductive natural quartz sand NQS 4700 AS, we use an available product that not only has a high market supply, but also excellent economic efficiency. At the same time, we obtain it predominantly from regional sources – in contrast to the global procurement of silicium carbide. Since less energy is required to extract natural quartz sand than to produce silicium carbide (SiC), the new sand type scores with a lower environmental impact.
That’s convincing!
- economical
- good market availability
- for electrically conductive and slip-resistant coatings
- wear-resistant and durable
- can be used in diffusible systems
- suitable for car, truck and forklift traffic as well as for transport cats with polyamide wheels
- high proportion of natural raw materials
Compared to SiC, NQS 4700 AS achieves approximately slip resistance level R11 with a grain size of 0.3 to 0.8 mm. The natural quartz sand is primarily used for coatings in industrial or commercial areas where medium loads from rubber-tyred industrial trucks, motor or goods vehicles and nylon-tyred transport carts are to be expected.
In the product flyer below you will find all the advantages of our new natural quartz sand as well as a direct comparison with SiC. Two KLB sample system build-ups show how you can replace silicium carbide in dissipative scattered coatings:
System build-up 1: conductive EP scattered coating
- Top sealer EP 296 Kopfsiegel
- Base layer with EP 99 EL+, fully scattered with natural quartz sand NQS 4700 AS, followed by intermediate sanding
- Conductive layer EP 799 Ableitgrund
- Scratch coat with EP 50, openly scattered with natural quartz sand NQS 0.3/0.8mm
- Primer EP 50
System build-up 2: conductive, diffusible EP scattered coating
- Matt sealer PU 813 EL+/ESD
- Top sealer EP 785 EL+
- Base layer with EP 785 EL+, fully scattered with natural quartz sand NQS 4700 AS
- Conductive layer EP 799 Ableitgrund
- Scratch coat with EP 724 E Haftgrund Super
- Primer EP 724 E Haftgrund Super
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