Go Back  RCU Forums > RC Boats > RC Boats General Discussion
Reload this Page >

Wet Sanding and Buffing??

Notices
RC Boats General Discussion Discuss general rc boating topics here.

Wet Sanding and Buffing??

Old 05-10-2010, 01:36 PM
  #1  
miniature_business
Senior Member
Thread Starter
 
Join Date: May 2009
Location: mississauga, ON, CANADA
Posts: 116
Likes: 0
Received 0 Likes on 0 Posts
Default Wet Sanding and Buffing??

I understand that you wet sand between primer coats, but is it better for adhesion to wet sand with a high grit between colour coats? Also, is the purpose of wet sanding the final clear coat with 800-1000 grit and then buffing to provide a higher gloss finish? Thanks I can't seem to find that information, just a lot of product knowledge.
Old 05-10-2010, 05:09 PM
  #2  
Dreamin Hemi
 
Dreamin Hemi's Avatar
 
Join Date: Nov 2004
Location: Milton, DE
Posts: 2,638
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Wet Sanding and Buffing??

Wet sanding the clearcoat takes out any slight imperfection that may be on the surface such as the orange peel texture commonly seen with most paint jobs. Never a necessity, however once buffed out creates the perfect deep wet look that we as painters strive for. You only sand enough to knock off the tops of the "orange peel". As you compound buff, the machine takes care of the rest of the bump without removing too much material. You are than left with a perfectely flat, high gloss finish...assuming you know which high speed bufffing pads and compounds to use in the correct order.
Old 05-10-2010, 09:33 PM
  #3  
miniature_business
Senior Member
Thread Starter
 
Join Date: May 2009
Location: mississauga, ON, CANADA
Posts: 116
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Wet Sanding and Buffing??

So you wet sand and buff the last coat of clear? What do you use for a clear? I know 2 part systems are the best but I am kind of on a fixed budget right now so I am looking for a price conscious option. I heard Minwax Polyurethane works, but I am concerned about yellowing. Will an Acrylic Lacquer clear coat provide me with a reasonable amount of fuel resistance? Thanks.
Old 05-10-2010, 09:37 PM
  #4  
Dreamin Hemi
 
Dreamin Hemi's Avatar
 
Join Date: Nov 2004
Location: Milton, DE
Posts: 2,638
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Wet Sanding and Buffing??

I would be worried about that as well. I never spray polyurethane on a basecoat.....that stuffs made for wood. I always use a two part acrylic urethane clearcoat. No yellowing and very wetsandable. I find a liking to PPG products personally, however there are a few others MUCHless costly.
Old 05-10-2010, 09:48 PM
  #5  
miniature_business
Senior Member
Thread Starter
 
Join Date: May 2009
Location: mississauga, ON, CANADA
Posts: 116
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Wet Sanding and Buffing??

I was looking at a pro form system its available at carquest here in canada. Have you ever used the 2 part clear coat systems in a spray can? As well, what's your take on Top Flite LustreKote Crystal Clear?
Old 05-10-2010, 10:03 PM
  #6  
Square Nozzle
My Feedback: (1)
 
Join Date: May 2003
Location: Vernon, CT
Posts: 1,949
Likes: 0
Received 1 Like on 1 Post
Default RE: Wet Sanding and Buffing??

You should do your final wet sand with 2000 grit wet or dry paper, wet. 800 to 1000 will leave visible scratches and you'll be buffing till your arms fall off and you still won't get all the scratches out.
Old 05-11-2010, 04:30 AM
  #7  
Dreamin Hemi
 
Dreamin Hemi's Avatar
 
Join Date: Nov 2004
Location: Milton, DE
Posts: 2,638
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Wet Sanding and Buffing??


ORIGINAL: miniature_business

I was looking at a pro form system its available at carquest here in canada. Have you ever used the 2 part clear coat systems in a spray can? As well, what's your take on Top Flite LustreKote Crystal Clear?
The pro form seems to be a decend product, certantly good enough for our models. As far as the Top Flite system, I have and still use that stuff with my r/c planes. The colors are designed to work with the best covering material ever, Monokote!.....a nearly perfect match. It is not a 2 part system, but it does resist fuel to an extent. Woulden't use it in a boat application however.

If you have access to basic spray equipment and want to save a lot of money, you may consider buying practically any of the rattle can spray paints availible as a base coat. I have had customers want to lessen their cost for the boats I build and I can get away with emptying the contents of the rattle can into my auto detail spray gun and shoot from there! The results are 100% better than the aerosol spray job. You then spend the money on a cheap urethane clearcoat.....about $20/quart for the clear, $10 for a little can of activator here in the U.S. Spray that on and you've got one great paint job. By the way, there is not much that you cannot spray over with urethane clear......it sticks to practically everything.
Old 05-11-2010, 03:37 PM
  #8  
miniature_business
Senior Member
Thread Starter
 
Join Date: May 2009
Location: mississauga, ON, CANADA
Posts: 116
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Wet Sanding and Buffing??

Sound good! I got my hands on a spray gun and a compressor so I'll be picking up some 2 part auto clear. What psi do you shoot at? As for what you said about emptying the contents of a rattle can into a spray gun... Do you just spray the spray can into the canister and shoot or do you have some other technique??
Old 05-11-2010, 03:46 PM
  #9  
Dockman
Senior Member
 
Join Date: May 2009
Location: Climax Springs, MO
Posts: 737
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Wet Sanding and Buffing??

What kind of bluffer is use for this small boats?
Old 05-11-2010, 06:26 PM
  #10  
Dreamin Hemi
 
Dreamin Hemi's Avatar
 
Join Date: Nov 2004
Location: Milton, DE
Posts: 2,638
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Wet Sanding and Buffing??

I usually shoot into a paper drinking cup.....keep shaking the can once in a while as you do it. Fill more than you think you'll need...it takes a while to "reload" if you run out. Ithen transfer to the spray canister using a paint filter.
ORIGINAL: miniature_business

Sound good! I got my hands on a spray gun and a compressor so I'll be picking up some 2 part auto clear. What psi do you shoot at? As for what you said about emptying the contents of a rattle can into a spray gun... Do you just spray the spray can into the canister and shoot or do you have some other technique??
Old 05-11-2010, 06:28 PM
  #11  
Dreamin Hemi
 
Dreamin Hemi's Avatar
 
Join Date: Nov 2004
Location: Milton, DE
Posts: 2,638
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Wet Sanding and Buffing??


ORIGINAL: Dockman

What kind of bluffer is use for this small boats?
I use a small pnumatic buffer for the boats....easier to manipulate than the full size one for vehicles.
Old 05-11-2010, 10:47 PM
  #12  
miniature_business
Senior Member
Thread Starter
 
Join Date: May 2009
Location: mississauga, ON, CANADA
Posts: 116
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Wet Sanding and Buffing??

sweet! I'll give it a try! What kind of PSI should I be shooting at?
Old 05-11-2010, 11:24 PM
  #13  
misshydro
Senior Member
 
misshydro's Avatar
 
Join Date: Jul 2006
Location: stmarys, OH
Posts: 2,925
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Wet Sanding and Buffing??

I use my normal buffer you use on real cars.. small areas that buffer cant get to,do it the old fashionway hand rub it..

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.