Usage example: Manhole anti-slip (Slip Rate Sigma 03 SR method)

This is a new anti-slip method for manhole covers. A mixture of slip rate sigma 03 resin and aggregate is embedded in the recess of the manhole cover, finished to the height of the protrusion for anti-slip processing. By using colored aggregates as shown in the photo, it can also be finished as a color-designed anti-slip manhole cover to match the landscape. In hazardous areas of the roadway, if the depth of the recess in the cover falls below 3 mm, the friction coefficient drops drastically, making it dangerous; therefore, it is recommended to replace it. However, with the covers processed using this method, both the iron and resin parts decrease simultaneously, so even if it falls below 3 mm, the friction coefficient remains high, extending the replacement period and providing economic benefits. Additionally, by using melted slag (under 1 mm) generated from incineration plants as aggregate, it also contributes to recycling efforts.


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We embed a mixture of Slip Rate Sigma 03 resin and aggregates into the recess of the manhole cover, finishing it at the height of the protrusions for anti-slip processing. By using colored aggregates, we can also create a color-designed anti-slip manhole cover that matches the landscape. Additionally, to enhance durability and anti-slip performance, there is a method that covers the entire surface with a thickness of 2mm from the height of the protrusions (excluding the management and type sections).