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I'm liking this Menzerna P175
http://mowrystrings.luthiersforum.com/forum/viewtopic.php?f=10101&t=52336		 Page 1 of 1
Author:  Colin North [ Tue Sep 03, 2019 12:27 pm ]
Post subject:  I'm liking this Menzerna P175
Final polish on Enduro Var.
I was using Atol 6 for final polishing, but I do like this.
Author:  meddlingfool [ Tue Sep 03, 2019 12:39 pm ]
Post subject:  Re: I'm liking this Menzerna P175
Shiny! What's your film thickness?
Author:  Colin North [ Tue Sep 03, 2019 12:46 pm ]
Post subject:  Re: I'm liking this Menzerna P175
meddlingfool wrote:
Shiny! What's your film thickness?

Three thou' final thickness.
Author:  meddlingfool [ Tue Sep 03, 2019 2:33 pm ]
Post subject:  Re: I'm liking this Menzerna P175
Perfect!
Author:  Joe Beaver [ Tue Sep 03, 2019 11:06 pm ]
Post subject:  Re: I'm liking this Menzerna P175
Wow, that is a great finish. And I do like shinny!!!
Author:  Tai Fu [ Wed Sep 04, 2019 6:07 am ]
Post subject:  Re: I'm liking this Menzerna P175
I used GW16 and it was already pretty darned shiny. I used P175 but honestly it was only very slightly shinier... I think Menzerna only puts it one grade shiner than GW16 except GW16 cuts pretty well. On a test piece I was able to achieve a shine as good as the OP's picture using GW16 as a final polish.

If I used the red stuff from Stewmac before GW16 the finish looks even better but the Stewmac red stuff doesn't really give you a real shine. It just cuts fast.
Author:  Colin North [ Wed Sep 04, 2019 8:34 am ]
Post subject:  Re: I'm liking this Menzerna P175
Tai Fu wrote:
I used GW16 and it was already pretty darned shiny. I used P175 but honestly it was only very slightly shinier... I think Menzerna only puts it one grade shiner than GW16 except GW16 cuts pretty well. On a test piece I was able to achieve a shine as good as the OP's picture using GW16 as a final polish.

If I used the red stuff from Stewmac before GW16 the finish looks even better but the Stewmac red stuff doesn't really give you a real shine. It just cuts fast.

I highly doubt that, unless you are using something else afterwards.
I sand to 1200 grit, then onto the buffer using GW16 which is Cut 4 Gloss 7. This leaves a reasonable polish, but also leaves visible fine scratches which catch the light all over, more obvious if you remove the wax left from the bar with naptha.
Finer Merzena bars I have used personally were Atol 6 and now P175 which is Cut 3 Gloss 9 and I believe there are least 2 other grades are suitable for use on lacquer, and there are also the many creams for hand finishing.
Author:  Colin North [ Wed Sep 04, 2019 8:40 am ]
Post subject:  Re: I'm liking this Menzerna P175
But, hey, if you're happy with what your getting with GW18, that's fine.
Author:  sdsollod [ Wed Sep 04, 2019 9:03 am ]
Post subject:  Re: I'm liking this Menzerna P175
Who could ask for more shine than that!
Author:  Tai Fu [ Thu Sep 05, 2019 7:34 am ]
Post subject:  Re: I'm liking this Menzerna P175
Colin North wrote:
But, hey, if you're happy with what your getting with GW18, that's fine.


I can't say I agree with that.

Image

This plastic glasses lens was badly scratched up during use, and I sanded the glasses with 600 grit until all the scratches were gone (it was the coating that got scratched and that shows up in a big way). Then I used the red Stewmac compound to polish out the 600 grit scratches. Then I used Menzerna GW16 for final polish. Now this lens is as clear as the day it was made (albeit without the coating).

Granted the lens is made of a hard plastic but in my experience when dealing with a HARD finish like 2k, polyester, etc. GW16 polishes to a perfect shine. I'm sure P175 makes it shinier but I can't tell (last time I used P175 all it did was smear white paste everywhere).
Author:  Colin North [ Thu Sep 05, 2019 9:17 am ]
Post subject:  Re: I'm liking this Menzerna P175
Like I said, suit yourself, Menzerna know nothing about polishing musical instruments -
https://www.menzerna.com/files/Dokumente/Produkte/Flyer/menzerna_Flyer_Paint_Plastics_240x140_RZ_ENG_preview.pdf
Author:  Colin North [ Thu Sep 05, 2019 3:07 pm ]
Post subject:  Re: I'm liking this Menzerna P175
Tai Fu wrote:
…….. ……. but I can't tell (last time I used P175 all it did was smear white paste everywhere).

And that's very strange - it's yellow, not white at all.
Author:  joe white [ Fri Sep 06, 2019 12:38 am ]
Post subject:  Re: I'm liking this Menzerna P175
I think you can get the P175 in white or yellow. I prefer the yellow, the white seemed to be more dry, not as greasy.
Author:  Tai Fu [ Fri Sep 06, 2019 12:42 am ]
Post subject:  Re: I'm liking this Menzerna P175
I had the white stuff. It was greasy too.
Author:  Colin North [ Fri Sep 06, 2019 4:19 am ]
Post subject:  Re: I'm liking this Menzerna P175
joe white wrote:
I think you can get the P175 in white or yellow. I prefer the yellow, the white seemed to be more dry, not as greasy.

Joe, according to their website the three solid "Super Finish" compounds are P175, M5 and G52.
P175 is dry and yellow, M5 is dry and white, G52 is medium grease and white. - ?
Author:  Tai Fu [ Fri Sep 06, 2019 4:26 am ]
Post subject:  Re: I'm liking this Menzerna P175
I am not sure what I had then. I bought it from LMI a long time ago and they labeled it “fine”
Author:  joe white [ Fri Sep 06, 2019 7:02 am ]
Post subject:  Re: I'm liking this Menzerna P175
Colin North wrote:
joe white wrote:
I think you can get the P175 in white or yellow. I prefer the yellow, the white seemed to be more dry, not as greasy.

Joe, according to their website the three solid "Super Finish" compounds are P175, M5 and G52.
P175 is dry and yellow, M5 is dry and white, G52 is medium grease and white. - ?


Colin, I'll have to look into this. It's been about a year since I buffed anything so I'll see what the colors were. I remember Jeff Silver telling me people complaining about the color making a huge mess to Menzerna USA so they offered it in another color to appease them. It might have been yellow and pink.
Author:  Colin North [ Fri Sep 06, 2019 7:11 am ]
Post subject:  Re: I'm liking this Menzerna P175
joe white wrote:
Colin North wrote:
joe white wrote:
I think you can get the P175 in white or yellow. I prefer the yellow, the white seemed to be more dry, not as greasy.

Joe, according to their website the three solid "Super Finish" compounds are P175, M5 and G52.
P175 is dry and yellow, M5 is dry and white, G52 is medium grease and white. - ?


Colin, I'll have to look into this. It's been about a year since I buffed anything so I'll see what the colors were. I remember Jeff Silver telling me people complaining about the color making a huge mess to Menzerna USA so they offered it in another color to appease them. It might have been yellow and pink.

I checked the LMI site - fine is marked P175 and is - white [headinwall]
And the yellow does make a mess, I'm glad I have my buff set up outdoors. bliss
Good to know the company listen to their customers though.
Author:  Tim Mullin [ Sun Sep 08, 2019 10:33 am ]
Post subject:  Re: I'm liking this Menzerna P175
I’ve been buffing with Menzerna for 12 years. I don’t build more than 4 guitars per year, so even with repair work, the stuff lasts a long time. The problem I found with my first batch of compound is that it seemed to get dry and hard, and just didn’t work so well as it aged. So 3 or 4 years ago I replaced all my compounds and bought fresh, clean buffs. Things are now much better. From that experience I went to storing my compound in a ziplock freezer bag, hoping to extend its life.
Image


Sent from my iPad using Tapatalk
Author:  Tai Fu [ Sun Sep 29, 2019 9:58 am ]
Post subject:  Re: I'm liking this Menzerna P175
Image

I just polished this with GW16. P175 will probably improve this quite a bit but I feel instead of spending $$$ on another wheel and compound, I think I can finish this off with liquid compound and a cloth. But it looks really good to me just polishing with GW16 with a 14" wheel at 900rpm.

The finish is 2K urethane with epoxy fill underneath. Say what you will about 2k but I did this in one week, including epoxy fill. Fastest finish schedule I ever did.
Author:  Colin North [ Sun Sep 29, 2019 10:44 am ]
Post subject:  Re: I'm liking this Menzerna P175
Let us know how it goes.
Just curious too, are you looking at your finishes using the glasses which you polished with G16?
Author:  Tai Fu [ Sun Sep 29, 2019 10:53 am ]
Post subject:  Re: I'm liking this Menzerna P175
No, I wear contacts. The glasses is only for backup.
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