tooling PVC


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Old 12-09-22, 06:36 AM
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tooling PVC

I'm making posts for my new porch stairs and routing the caps out of PVC board, and they look great. but I'm a bit concerned about the exposed surface. is lightly sanding to say 180 enough or should I seal in some way? I dont want the exposed cell structure (or whatever it's called!) to be a place for dirt to gather. should I prime and sand? thx!
 
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Old 12-09-22, 07:42 AM
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The manufacturers of PVC planks and composite decking do not suggest any method for sealing either end cuts or milled surfaces. Some PVC trim such as composite deck planks have an extruded color that is the same color through and through and does not require sealing or paint. Other times, such when PVC trim is used as window trim, paint is applied, such as when you want your trim to be blue or grey, or any other color.

The bottom line is, unless you plan to paint it, no sealer is required. Sand it as smooth as you like.
 
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Old 12-09-22, 09:26 AM
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If you want the factory and cut edges to match I'd paint it. It's not needed to protect the PVC but it can provide a nice, uniform surface and make it look more like milled wood.
 
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Old 12-09-22, 09:44 AM
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excellent thx both -- planning to paint so should be good to go!
 
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Old 12-09-22, 09:50 AM
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The only thing I'd add is you should only use acrylic paint on PVC. No oil.
 
 

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