Stair (step nose) anti-slip floor coating 'Slip Rate Σ (Sigma) 03'

Non-slip tiles, commonly referred to as "Clintile" or "Aston," equipped with rod-shaped or dot-shaped rubber are frequently used on the stairs and flat surfaces of pedestrian bridges. Until recently, the rubber on the edges of these tiles would wear down or harden over time, reducing their slip-resistant effect, prompting the installation of additional slip-resistant materials between the rubber sections. However, it seems that recently, further aging has caused the rubber to deteriorate significantly, leading to a complete loss of slip resistance, visibility, and distinguishability, creating dangerous conditions on pedestrian bridges, which has resulted in an increase in inquiries. Our recommended approach is to completely remove the rubber, fill the two depressions (excluding the center) with non-shrink mortar, leave a 7mm gap from the nose for the formwork, and fill the center depression with Slip Rate Σ03 composite material, installing a 60mm wide slip-resistant surface. By integrating the center with the Slip Rate Σ03 composite material, we can enhance the overall strength. Replacing or repairing only the rubber is challenging, and repairing the deteriorated anti-slip rubber sections is significantly more cost-effective and safer than replacing them with new non-slip tiles, with minimal waste generated. Currently, this method is being widely adopted by various government offices and agencies.

March 2008 Anti-slip treatment was applied to the tread surface of the stair tiles (glazed finish) at the sports facility in Izumi City, Osaka Prefecture, using Slip Rate Sigma 01. Since the stair tiles are glazed, they are quite slippery and pose a danger when wet. Additionally, this staircase connects to a tennis court, and sand from the court that sticks to shoes falls onto the stairs, making them slippery even when dry. To meet the administrator's request to minimize changes to the appearance while reducing slip risk both when dry and wet, we used the Slip Rate Sigma 01 method, applying 200 grams of aggregate similar in color to the flooring material per square meter.

In July 2010, we applied a slip-resistant treatment using Slip Rate Sigma 03 to the spiral staircase made of checker plate steel for the water slide at Sun San Pool in Izumi City, Osaka Prefecture. The spiral staircase was only painted, and children with wet feet were slipping and falling at the pool. Additionally, the paint color was a dark navy single color, which made the visibility of the step edges poor, posing a risk of tripping for visually impaired individuals. The administrator requested a slip-resistant method that would improve visibility and identification of the step edges without causing pain when walking barefoot. Therefore, we used a prominent color aggregate (yellow) in the Slip Rate Sigma 03 method, finishing the work at a height of approximately 2 millimeters to contrast with the existing floor color.

This is a method for anti-slip treatment of stair nosings effective against freezing after snowmelt. It has a thickness (possible from 2mm) and permeability (using a sample with dimensions of 70mm x 40mm and a thickness of 2mm, the time for 10g of water to permeate is 11 seconds), ensuring that even if melted snow freezes, the anti-slip effect is maintained. Slip Rate Sigma 03 is a fiber-reinforced synthetic resin (ceramic fiber) made from epoxy resin, providing excellent durability. The formwork is attached to the nosing of concrete, tile, stone, or steel stairs, and a mixture of Slip Rate Sigma 03 resin and aggregate is embedded, followed by a finishing layer at the height of the formwork to create the anti-slip treatment. By using colored aggregates as shown in the photo, it can also enhance visibility and identification of the nosing for visually impaired individuals. (The photo shows a thickness of 2mm.)