| Official Luthiers Forum! http://www-.luthiersforum.com/forum/ |
|
| Dealing with a waterbased drip http://www-.luthiersforum.com/forum/viewtopic.php?f=10101&t=44841 |
Page 1 of 1 |
| Author: | dnf777 [ Sun Jan 04, 2015 6:57 pm ] |
| Post subject: | Dealing with a waterbased drip |
Used KTM-9 through a HVLP sprayer for first time. Used a 8oz can and came out to 9 coats, so I think I'm happy with the coat thickness, and didn't have too many drips. After the early drips flat, they disappeared nicely under later coats. Now that I'm done, I noticed a small drip. I'm thinking I can sand it out with 320, then sand up to 1200 prior to buffing. Does this sound reasonable, or must I break out the sprayer and add at least another coat after sanding? (I'll probably try just sanding and buffing.....can always re-sand and spray if it doesn't work) Dave F |
|
| Author: | Joe Beaver [ Sun Jan 04, 2015 7:23 pm ] |
| Post subject: | Re: Dealing with a waterbased drip |
KTM9 is a good finish. The only real trouble you can have is using thick coats and not letting them dry well before you spray the next. If you do that you will probably have a blue cast/haze to it. Assuming no problems there I would let it dry two days after you have finished spraying. Then level sand the whole thing with a rubber sanding block and 320 paper. Just take it down to where you don't have any shinny spots after you wipe it off. You can level sand the run at this time also starting with 220 going to 320, making it disappear. Be careful on the edges, you don't want any sand through. If you do just spray about 4 more coats and do the same thing again. After 10-14 days you can start through the grits, from 400 to as 1200 or so. Sometimes i go up to around 8000. Then you can buff. |
|
| Author: | SteveSmith [ Sun Jan 04, 2015 8:18 pm ] |
| Post subject: | Re: Dealing with a waterbased drip |
I use a razor blade on runs, I put masking tape on each end of the blade then use it carefully as a scraper. The masking tape keeps the blade from going to low. Once the run is mostly flattened then I go to a flat, hard sanding block. |
|
| Author: | Greg [ Thu Jan 08, 2015 11:10 pm ] |
| Post subject: | Re: Dealing with a waterbased drip |
i try and find them when still wet and wipe them off with my finger or a foam brush |
|
| Author: | Colin North [ Fri Jan 09, 2015 5:23 am ] |
| Post subject: | Re: Dealing with a waterbased drip |
SteveSmith wrote: I use a razor blade on runs, I put masking tape on each end of the blade then use it carefully as a scraper. The masking tape keeps the blade from going to low. Once the run is mostly flattened then I go to a flat, hard sanding block. I've use that tip quite often, works for me. Same for drop fills (with CA in my case) |
|
| Page 1 of 1 | All times are UTC - 5 hours |
| Powered by phpBB® Forum Software © phpBB Group http://www.phpbb.com/ |
|