Polyurethane is hard, dense foam that has many advantages over wood or plaster in that it does not rot, crack, splinter, or absorb moisture.
Here are a few of the many advantages of polyurethane corbels and Brackets:
Exquisite detail and design consistency
Lasts longer than wooden corbels
Designed for interior and exterior use
Cuts cleanly without splintering
Lightweight and easy to install
Pre-primed and ready for paint or stain