Exterior Coating Options: MDI experiments can save you time and money

Chainshell Coating

This coating is called a chainshell coating. It is created by laying chain link fencing over the dome and using it as the reinforcement for a coating of concrete. The chain-link fence provides just enough reinforcing to prevent any gross movement of the exterior concrete. It is colored with a H&C Concrete Stain (a siliconized acrylic stain). This method of covering the Airform is extremely effective and durable. We recommend using standard stuccoing application rules when using this method.

With this particular dome, the concrete was sprayed in one day. We did not allow enough curing time between coats, therefore there was significant cracking. When the cracking occurs and with exposure to weather such as rain, dew and moisture, some of the ingredients naturally leech out causing a stain on the surface of the coating. A coat of paint would be sufficient to spruce up the building.