Members koco Posted July 4, 2005 Members Share Posted July 4, 2005 Polyurethane polishing/buffing What can be done to highly polish a polyurethane finish? Can it be treated like laquer? I intended to work down to 1500 grit or so and then polish with a pad and compound. Link to comment Share on other sites More sharing options...
Members UGB Posted July 4, 2005 Members Share Posted July 4, 2005 yep, just like lacquer. Link to comment Share on other sites More sharing options...
Members Paul Buerk Posted July 4, 2005 Members Share Posted July 4, 2005 Depends on which kind of poly you're talking about, but yes they can easily be buffed out. Most don't get as hard as nitro, though. Most guys use a buffing arbor and Menzerna compounds. Link to comment Share on other sites More sharing options...
Members Kevin_FL Posted July 4, 2005 Members Share Posted July 4, 2005 wet sanding down to 1200 ( or even 2500 to make buffing quicker), then buffing with Meguiars #3, #7 usually does the trick. Get all the hardware & eletronics out of the way. Clean off the sanding grit & compound residue before you re assemble. Link to comment Share on other sites More sharing options...
Members BowerR64 Posted July 4, 2005 Members Share Posted July 4, 2005 Can you get nitro in a rattle can? Link to comment Share on other sites More sharing options...
Members UGB Posted July 5, 2005 Members Share Posted July 5, 2005 Yes. Lowes sells lacquer in a can for about $3 a can, or they did a couple of years ago. www.reranch.com is the place to get nitrocellulose in cans. Maybe www.stewmac.com has it too. Link to comment Share on other sites More sharing options...
Members Paul Buerk Posted July 5, 2005 Members Share Posted July 5, 2005 Originally posted by BowerR64 Can you get nitro in a rattle can? You can spray it with a Preval can. Link to comment Share on other sites More sharing options...
Members k4df4l Posted July 5, 2005 Members Share Posted July 5, 2005 Originally posted by BowerR64 Can you get nitro in a rattle can? yup Link to comment Share on other sites More sharing options...
Members koco Posted July 5, 2005 Author Members Share Posted July 5, 2005 Holy hijacked thread, Batman! Link to comment Share on other sites More sharing options...
Members ThomasD Posted July 5, 2005 Members Share Posted July 5, 2005 Poly finishes can have very long cure times, especially water based products in a high humidity environment. Be sure to wait long enough before final polishing otherwise yo may be wasting your time. Link to comment Share on other sites More sharing options...
Members koco Posted July 5, 2005 Author Members Share Posted July 5, 2005 Originally posted by ThomasD Poly finishes can have very long cure times, especially water based products in a high humidity environment. Be sure to wait long enough before final polishing otherwise yo may be wasting your time. This is good advice. I'm not using a water based product, but it still seems to be a bit gummy 10 hours after coating. I'm waiting extra long plus baking the coats in the sun for a while. Also heating the poly makes it flow better, but I'm not sure if it will de stabilize it too much. Link to comment Share on other sites More sharing options...
Members BowerR64 Posted July 5, 2005 Members Share Posted July 5, 2005 Originally posted by koco Holy hijacked thread, Batman! sorry dude Link to comment Share on other sites More sharing options...
Members koco Posted July 6, 2005 Author Members Share Posted July 6, 2005 Originally posted by BowerR64 sorry dude Not a big deal, I just really wanted to use a Batman reference. Link to comment Share on other sites More sharing options...
Members ThomasD Posted July 6, 2005 Members Share Posted July 6, 2005 Originally posted by koco This is good advice. I'm not using a water based product, but it still seems to be a bit gummy 10 hours after coating. I'm waiting extra long plus baking the coats in the sun for a while. Also heating the poly makes it flow better, but I'm not sure if it will de stabilize it too much. I hate to be the bearer of bad news, but, you should proabably let the finish cure for a good two weeks before final polish, a month might even be better. Finishes cure incrementally - the majority of the process occurs rather rapidly and the finish may be 'wearable' in a matter of hours or days but in order to get a high gloss from polishing you want that finish to be almost entirely, or entirely, hardened and that takes time. It is unlikely that sun/UV exposure will speed the process significantly - unless recommended by the finish manufacturer I'd suggest avoiding it, conceivably it could interfere with the catalysis/polymerization and actually make the final finish softer. Link to comment Share on other sites More sharing options...
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