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Krzemienr
Apr 16th, 2010, 09:57 AM
I have an opportunity to detail a 37' President 370 Sedan boat tomorrow! the kicker... it's 23 years old and has never been detailed, and it needs to be done tomorrow, so this might be a 20 hour detail in 1 day. I'm assuming the gel coat is super dry, so it'll make for some interesting times, I'll post up some pics when it's done.

Rafal

Daniel Kinder
Apr 16th, 2010, 10:04 AM
Good luck buddy!

That's going to be a long day.

Don't you have anyone that could help out?

Krzemienr
Apr 16th, 2010, 10:13 AM
Good luck buddy!

That's going to be a long day.

Don't you have anyone that could help out?

My partner is on vacation, and there's no one I would trust with a DA on something like this, let alone a rotary. The owner of the boat is friend of mine so he's going to help out with the waxing and beer runs, lol

Rafal

Krzemienr
Apr 16th, 2010, 10:23 AM
OK, on a side note, I just realized I'm almost out of #45, so I will not be able to do the entire boat with it... anyone have any experience with M80 on gelcoats? Thanks!

Fly Bye
Apr 16th, 2010, 10:35 AM
You don't need luck, I'm sure you're more than capable for the job. (even it does take 20 hours) (Don't drink too much beer lol)

Krzemienr
Apr 16th, 2010, 10:40 AM
The beer is for after the detail...:)

J. A. Michaels
Apr 16th, 2010, 02:54 PM
Good luck. I know you will do a great job. Can't wait to see the pics.

Krzemienr
Apr 20th, 2010, 11:16 AM
so this was probably the most difficult surface I have ever worked with, it absolutely hated the M105, #49, and the #67, I ended up massaging the M80 in for about 6 hours. It managed to remove the oxidation and then "yellowness" in the paint, however it was nowhere near where I have hoped and wanted to bring the gel coat to. We are definitely going to schedule something in the fall (the boat is already in the water) to correct it fully. The gel coat was so dry that it just soak up anything you put on it, even after the 6 hours of M80 and 2 coats of wax, the finish was still "blotchy" is certain spots. We need more hours in a day! but here are some pictures:

Before:
http://i833.photobucket.com/albums/zz259/LastDetailAutoSpa/1985%20President%20370%20Sedan/DSCF4661.jpg

After:
http://i833.photobucket.com/albums/zz259/LastDetailAutoSpa/1985%20President%20370%20Sedan/DSCF4667.jpg

Before:
http://i833.photobucket.com/albums/zz259/LastDetailAutoSpa/1985%20President%20370%20Sedan/DSCF4658.jpg

After:
http://i833.photobucket.com/albums/zz259/LastDetailAutoSpa/1985%20President%20370%20Sedan/DSCF4673.jpg

And some more after:
http://i833.photobucket.com/albums/zz259/LastDetailAutoSpa/1985%20President%20370%20Sedan/DSCF4673.jpg
http://i833.photobucket.com/albums/zz259/LastDetailAutoSpa/1985%20President%20370%20Sedan/DSCF4678.jpg
http://i833.photobucket.com/albums/zz259/LastDetailAutoSpa/1985%20President%20370%20Sedan/DSCF4677.jpg

Krzemienr
Apr 20th, 2010, 11:22 AM
one more:
http://i833.photobucket.com/albums/zz259/LastDetailAutoSpa/1985%20President%20370%20Sedan/DSCF4669.jpg

Michael Stoops
Apr 20th, 2010, 12:15 PM
so this was probably the most difficult surface I have ever worked with, it absolutely hated the M105, #49, and the #67, I ended up massaging the M80 in for about 6 hours. It managed to remove the oxidation and then "yellowness" in the paint, however it was nowhere near where I have hoped and wanted to bring the gel coat to. We are definitely going to schedule something in the fall (the boat is already in the water) to correct it fully. The gel coat was so dry that it just soak up anything you put on it, even after the 6 hours of M80 and 2 coats of wax, the finish was still "blotchy" is certain spots. We need more hours in a day!


You are going to be very hard pressed to bring this boat up to a very high standard. The average life span of a gel coat finish is on the order of 15 to 20 years, depending on how it has been maintained. From your description this one has just been flat out neglected.

It's not a big surprise that M105 didn't like this finish, and there's a good chance that M91 Power Cut Compound from the RV/Marine Line won't either - it's just too dry for them. The oils in M45 are similar to what's found in M80 and even M07, and this gel coat is going to drink deep from that well. Before your next go 'round with this boat you should stock up on the M45 and block out a couple of days to work on it. You could spend the better part of a day just loading this boat up with M45 before you start cutting.

Krzemienr
Apr 20th, 2010, 12:33 PM
You are going to be very hard pressed to bring this boat up to a very high standard. The average life span of a gel coat finish is on the order of 15 to 20 years, depending on how it has been maintained. From your description this one has just been flat out neglected.

It's not a big surprise that M105 didn't like this finish, and there's a good chance that M91 Power Cut Compound from the RV/Marine Line won't either - it's just too dry for them. The oils in M45 are similar to what's found in M80 and even M07, and this gel coat is going to drink deep from that well. Before your next go 'round with this boat you should stock up on the M45 and block out a couple of days to work on it. You could spend the better part of a day just loading this boat up with M45 before you start cutting.

That's exactly what we talked about.... like I said I just didn't have enough of the 45 to even start so I went with the M80, and I mean at least it shines a little after 6 hours of buffing. Total time spent on this (between washing and such was about 12 hours and it still need so much work.... I would say 4 day span on this thing would be a safe bet for next time...

on a side note, would you recommend a slow speed with a polishing pad on a DA for this, or just use the rotary? Thanks

J. A. Michaels
Apr 20th, 2010, 12:46 PM
It was just absorbing all the oils, wow. I guess your going to have to apply many, many coats of it in the fall. Hope the owner gives you the time you need.

Michael Stoops
Apr 20th, 2010, 12:48 PM
on a side note, would you recommend a slow speed with a polishing pad on a DA for this, or just use the rotary? ThanksFor applying M45 or M07? Definitely slow speed on a D/A.

Phil Lovelady
Apr 20th, 2010, 03:26 PM
You are going to be very hard pressed to bring this boat up to a very high standard. The average life span of a gel coat finish is on the order of 15 to 20 years, depending on how it has been maintained. From your description this one has just been flat out neglected.

It's not a big surprise that M105 didn't like this finish, and there's a good chance that M91 Power Cut Compound from the RV/Marine Line won't either - it's just too dry for them. The oils in M45 are similar to what's found in M80 and even M07, and this gel coat is going to drink deep from that well. Before your next go 'round with this boat you should stock up on the M45 and block out a couple of days to work on it. You could spend the better part of a day just loading this boat up with M45 before you start cutting.


I agree with Michael, but would try to wet sand a spot that is in the worst condition with 1000 grit and then do the above mentioned... It may save you LOTs of product in the end. I have found that it is completely necessary to do that to get a smooth non pitted surface. Compounding just does not cut it... But it will still take some M45 and a few good coats of M63 to get that sucker looking like it should after the proper first steps are taken.

Phil
Stellar Marine Detailing

Krzemienr
Apr 20th, 2010, 06:59 PM
thanks for the responses guys, I will definitely try all of the above, especially the wet sanding.

Rafal