Azek has a nice factory satin finish that you do not have to do anything with.
You can use standard wood working tools. Its very easy to
work with.
You can use silicon on Azek.
Azek is weather proof.
AZEK Warranty - will be free from manufacturing defects that cause the Product to
rot, corrode, delaminate, or excessively swell from moisture for a period of twenty-five
(25) years