Simple Answer:
Like a synthetic
wood
It is not a
cheap plastic really looks like plaster but is
lite weight and easy to
install.
They come
primed and need to be painted.
Interior &
Exterior use.
ArchPolymerTM
meets class A fire rating only when it is
on Custom
special order to have the fire retardant put into
the
material mix or fire barrier primer can be applied in 3
coats.
This is a requirement in some jurisdictions or
commercial
buildings such as offices or places of worship.