billconner
Well-known member
Can I mill PVC trim, like round over an edge or add a flute? and leave it unpainted? I've never used it and considering in place of some vinyl siding style lineal trim.
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exterior pvc trim
- Thread starter billconner
- Start date
Motown
Well-known member
You should be able to router it. Make sure your have a sharp bit, otherwise you may have some melting from heat. It it flattens the gloom of the surface, you may be able to use a heat gub to bring some gloss back.
mike93lx
ALLIANCE MEMBER
It machines great, but I have found that the edges get really dirty quickly due to not being smooth. Haven't tried a heat gun on it
OP
billconner
Well-known member
I just couldn't tell if the insides cut were similar to factory surface or more rougher. Maybe just paint it.
I milled some several years back. it was sort of porous under the factory edges . latex paint bonds well to it
Monza Harry
Well-known member
I've never tried a heat gun for this but a small torch usually will restore the gloss of many plastics [propane, butane, even a cigarette lighter, size of the part dependant). The melt point of most are in the low to mid 400° range but they start becoming "plastic" in the 200-250° range [where your "magic" will start to happen, move the heat quickly, to heat as evenly as possible] if you get to 400° for pvc, polyethelene, polypro, etc you will have a puddle. Nylon is a 600° melt material. These are rough range estimates, each "flow" (material) in a given group can vary enough to cause problems so practice on a very similar sacrificial specimen. Harry
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billconner
Well-known member
Interesting. Thanks.
even laquer thinner may melt the surface a bit and give you a sheen
I'm not impressed by it much due to the texture/porosity. Seems like it collects dirt immediately, and with how damp it is around here gets mildewy.It machines great, but I have found that the edges get really dirty quickly due to not being smooth. Haven't tried a heat gun on it
Should it always be painted?
About 5 years back I bought some PVC beadboard 8' lengths from HD, stuff was dead smooth and solid when cut. They stopped carrying it, but I wanted some more to patch in where a door became a window and the material that cost 2x at the lumberyard is super rough and looks terrible 4 years later.
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billconner
Well-known member
I do plan to paint it.