I'm fixing some exterior window trim which is water damaged.  The window doesn't get any protection from the elements.  I replaced the trim over 15 years ago and used wood.  Rain water goes where it wants to so this time I'm going to use Azek brand PVC.  I've used lots of PVC on the exterior of the house to replace window sill nosings and corner trim boards.  The window trim boards are 1 inch thick.  I've got a lot of 1/2" thick PVC and would like to laminate the 1/2" pieces to make the 1" thick pieces.  I know that Azek has a PVC glue but the reviews I have seen are mixed.  Some folks use regular plumbing PVC glue.  There are adhesives and solvent based products that weld/bond the PVC to itself.  I would like to get a good weld/bond that will seal out water.  Anybody have any experience with this and can recommend product(s)?   

Jim,

I've never worked with the Azek brand PVC products, but I have used the clear Oatey brand cleaner, and clear PVC cement to repair Crestline brand vinyl windows with excellent results.