The eight-story project in downtown Philadelphia is one of a new wave of long-awaited
residential and retail high-rises aimed at reinvigorating the downtown area. The building,
which will have 110 loft-style apartments and 21,000 square feet of street-level retail
space, is being built by Liber Brothers Construction who have been using Smooth-On rubber
molds for years.
For the precast facade elements, molds were made with Smooth-On's Brush-On® 50
mold rubber, which has superior physical and performance properties. The rubber mold is
carefully engineered to the required profile and dimension. Unlike timber formwork, it can
be reused very many times with minimal distortion or damage. Upon delivery to the site,
the precast facade will be lifted by crane to the designed position, secured with
temporary bracing and fixed into position.
Smooth-On's Brush-OnŽ 50 mold rubber is applied to the model along with a support shell.
Once mold is completed, a fiberglass resin casting is laid up and allow to cure.
Casting is demolded from the rubber mold. The flexibility of the rubber allows for an easier demold.
Casting reflects perfect detail from the Brush-OnŽ 50 mold rubber.
Because the panel is thin-walled, this greatly decreases the overall weight of the cast.
Final stages of clean-up, then ready to ship to the construction site.