Architectural Reproduction & Restoration
Architectural Reproduction and Restoration specialists use Polytek liquid polyurethane mold rubbers, such as pourable Poly 74-Series rubbers and brushable or sprayable Polygel® rubbers, to make site molds of aging/damaged ornate architectural elements (brackets, panels, cornice moulding, statuary, etc.).
From these molds, reproductions of damaged elements can be cast in the controlled environment of a mold shop. These imperfect castings are resculpted to their original beauty so a production rubber mold can be made from the now-perfect model. This production mold allows repeated casting of the new architectural element in concrete, GFRC (Glass Fiber Reinforced Concrete – lightweight, 3/4″ thick concrete), plaster, fiberglass, or other casting media as required for interior or exterior mounting.
Mold Rubbers & Mold Shell Plastic
- Pourable Polyurethane Mold Rubbers
- Brushable Polyurethane Mold Rubbers
- Sprayable Polyurethane Mold Rubbers
- Silicone Mold Rubbers
- Mold Shell Plastics – Poly 1512 & fast-setting Poly 1512X are popular plastics for making mold shells over brush-on or spray-on molds.
- Architectural Restoration: Making a Rubber Site Mold to Replace a Damaged Column – The Polytek Blog
- Tutorial: Brush-On Rubber Mold of Decorative Architectural Element – The Polytek Blog
The following tutorial demonstrates the process of making a brush-on site mold of a plaster column: