You could apply a very liquid pure clay 'slip', with a brush, before the first full coat. This gives a nice key for the clay, sand, straw render to better adhere to; and also serves to flatten out any wispy, sticky-out straw pieces. Be sure to rehydrate (spray on water) though, before another clay coat goes on.
We were trying it out in anticipation of using clay plaster on the walls in the house we're building. I wanted to figure out what proportions to use for the ingredients and how it would work. Since then, we've put several tons of plaster on the straw bale walls of the house we're building. We're working on plastering the interior walls now, and just on the first coat (which is not complete yet), we've applied 3,500 pounds of plaster.
I've put it on drywall, and it adheres well. I spread it on by hand and then troweled the surface smooth. It worked fine.
You could apply a very liquid pure clay 'slip', with a brush, before the first full coat. This gives a nice key for the clay, sand, straw render to better adhere to; and also serves to flatten out any wispy, sticky-out straw pieces. Be sure to rehydrate (spray on water) though, before another clay coat goes on.
We were trying it out in anticipation of using clay plaster on the walls in the house we're building. I wanted to figure out what proportions to use for the ingredients and how it would work. Since then, we've put several tons of plaster on the straw bale walls of the house we're building. We're working on plastering the interior walls now, and just on the first coat (which is not complete yet), we've applied 3,500 pounds of plaster.