Shikkui Finish with Gypsum Moulding Boarder

Continuing from Modifying and Securing Gypsum Mouldings, once the GL Bond has set up and the mouldings are secure, the nakanuri, or brown coat of earthen plaster can be applied. 

Tape mouldings

 

10mm space to apply nakanuri in two coats

First application, roughly 6mm

 

3-4mm gap

 

Allow to dry

 

 Apply second coat and allow to dry

 

Sunajikkui for a scratch coat over the earthen plaster, consisting of Shikkui, sand and additional seaweed glue.

 

Apply thin scratch coat

 

As the Sunajikkui sets up, move material from wet, moist areas to drier areas.  Before the Sunajikkui dries, apply two coats of Shikkui. 

 

 Shikkui consists of hydrated lime, seaweed glue and hemp fibers

 

First application of Shikkui

 

 Again, as the Shikkui sets up, move material from wet, moist areas to drier areas. 

 

 After setting up but before drying, apply the second coat of Shikkui. 

 

 Lightly compress while moist

 

Avoid compression after the second coat has set up

 

 Repeat process in the larger area

 

 Again, lightly compress with a honyaki trowel while moist.

And again, avoid compression after setting up