With a this missing piece of the ceiling, this post shows how to make a plaster mold. We don’t make a habit out of fixing plaster or making molds, but for small, spot repairs, it makes sense that we do it. It’s always good to have skills that expand beyond painting.
A small ornament was destroyed when it fell from the ceiling. It would have to be re-created using a mold. See previous related posts: Part 1: Frick Collection Ceiling Repair and Part 2:Plaster Repair.
A putty was made out of a dental-like mold (fast-drying) and thoroughly pressed onto the model. We just followed the instructions on the box — mixing the 2 ingredients together which makes a pliable elastic mold that dries fast.
Freshly pulled out of the mold.
Let the mold dry completely. At the museum, we had the convenience of this kiln to assist with drying (at low temperature). Otherwise, be sure to dry to cure (6-12 hours).
Using a marker, signify extra areas to cut off.
Use extra plaster to filling the gaps on the surface.
Shellac was used on the surface to seal the plaster.
Finish the ornament with base paint, decorative finish as further explained in post: Ceiling repair at Frick Collection.