This is a method for installing keystone accessories (wedge stones and cornerstones).
Applicable substrate: Concrete block siding board
1. Surface preparation
A. In the case of concrete or block base...
Inspect the base and dry thoroughly after cleaning.
B. In case of siding board base...
Make sure the joints are firmly secured and the base is prepared so that it does not move.
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◎Please avoid rainy weather and carry out the installation on a sunny day.
◎When carrying out construction in cold weather, do not carry out construction when the temperature is below 5°C or when it is expected that the temperature will drop below 5°C during the curing period after construction.
2. Installation of hook screws
Check the position of the pin on the back of the keystone accessory, and insert the stainless steel corkscrew screw into the base in the position that will catch on the pin.
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Since keystone accessories are handmade products, the position of the pins will vary from piece to piece, so please check the position before hammering in the screws.
3. Paste
Apply adhesive (2-part epoxy resin for exterior use recommended) to the back of the Keystone accessory and attach it. If you hook the pin onto the screw you previously drove in, you can attach it safely until the adhesive hardens.
4.Curing
Be sure to allow sufficient time for the adhesive to harden.
5. Painting
It is not a problem if keystone accessories are not painted, but if there are color coordination instructions or you are concerned about dirt, please paint them.
