Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×


Reply
 
Thread Tools Display Modes
 
Old 04-07-2021, 10:56 AM   #1
Bus Crazy
 
kazetsukai's Avatar
 
Join Date: May 2017
Location: Windham NH
Posts: 1,227
Year: 1999
Coachwork: Amtran
Chassis: International RE
Engine: International T444e
Rated Cap: 76
Help with Rustoleum scratching?

Hey all, I'm working on the solar slideout system for the roof. I'm using Rustoleum High Performance Protective Enamel, Oil Based. Day two after the paint has dried I can still easily scratch the paint with anything, even with my fingers.



My process so far:
  • Cutting metal to length
  • Taking the rust off with a wire brush
  • Thoroughly cleaning off any oil residue using degreaser
  • Power wash
  • Dry
  • Rustoleum Primer, two coats
  • Rustoleum White enamel, two coats



What am I doing wrong?
kazetsukai is offline   Reply With Quote
Old 04-07-2021, 11:24 AM   #2
Mini-Skoolie
 
Flipmode's Avatar
 
Join Date: Nov 2019
Location: Palm Beach, FL
Posts: 22
Year: 2003
Coachwork: AmTran
Chassis: International
Engine: T444E
Rated Cap: 48 passenger
That seems like typical results. I love rustoleum but one of the drawbacks is it takes weeks to get that durable enamel hardness. I've seen people put a hardener additive in it but not sure how much of a difference it makes.

I think rustoleum takes exceptionally long before it gains its durability, though I don't think any high gloss single part paint will gain hardness quickly. 2 part automotive paints and epoxies gain their hardness quickly but come with several tradeoffs...
Flipmode is offline   Reply With Quote
Old 04-07-2021, 11:25 AM   #3
Bus Crazy
 
Join Date: Sep 2018
Posts: 1,949
Year: 2007
Coachwork: Thomas Built
Chassis: Minotour
Engine: Chevy Express 3500 6.6l
Rustoleum is a solvent-based paint. You probably just need more time
Danjo is offline   Reply With Quote
Old 04-07-2021, 11:32 AM   #4
Bus Geek
 
musigenesis's Avatar
 
Join Date: Jan 2019
Location: Philadelphia
Posts: 5,004
Year: 2003
Coachwork: International
Chassis: CE 300
Engine: DT466e
Rated Cap: 65C-43A
Quote:
Originally Posted by kazetsukai View Post
Hey all, I'm working on the solar slideout system for the roof. I'm using Rustoleum High Performance Protective Enamel, Oil Based. Day two after the paint has dried I can still easily scratch the paint with anything, even with my fingers.



My process so far:
  • Cutting metal to length
  • Taking the rust off with a wire brush
  • Thoroughly cleaning off any oil residue using degreaser
  • Power wash
  • Dry
  • Rustoleum Primer, two coats
  • Rustoleum White enamel, two coats



What am I doing wrong?
I've found rusto takes at least a month to get to full hardness - before that it's easy to scratch.
__________________
Rusty 87 build thread
musigenesis is offline   Reply With Quote
Old 04-07-2021, 11:39 AM   #5
Bus Nut
 
Phatman's Avatar
 
Join Date: Jan 2015
Location: Brazoria County, Texas
Posts: 721
Year: 1997
Coachwork: Carpenter
Chassis: International
Engine: T444E
Rated Cap: 32 Passenger
What Musigenesis said. Absolutely !!
Phatman is offline   Reply With Quote
Old 04-07-2021, 11:46 AM   #6
Bus Crazy
 
kazetsukai's Avatar
 
Join Date: May 2017
Location: Windham NH
Posts: 1,227
Year: 1999
Coachwork: Amtran
Chassis: International RE
Engine: International T444e
Rated Cap: 76
Quote:
Originally Posted by Flipmode View Post
That seems like typical results. I love rustoleum but one of the drawbacks is it takes weeks to get that durable enamel hardness. I've seen people put a hardener additive in it but not sure how much of a difference it makes.
Quote:
Originally Posted by Danjo View Post
Rustoleum is a solvent-based paint. You probably just need more time
Quote:
Originally Posted by musigenesis View Post
I've found rusto takes at least a month to get to full hardness - before that it's easy to scratch.
Quote:
Originally Posted by Phatman View Post
What Musigenesis said. Absolutely !!
Thanks guys, if that's the case so be it, just as long as I wasn't screwing it up somehow.
kazetsukai is offline   Reply With Quote
Old 04-07-2021, 02:20 PM   #7
Skoolie
 
Join Date: Apr 2020
Location: Northern California (Sacramento)
Posts: 238
Year: 1999
Chassis: Ford E450
Quote:
Originally Posted by kazetsukai View Post
Thanks guys, if that's the case so be it, just as long as I wasn't screwing it up somehow.
Enamel paint first dries (loses the solvent), then cures. Curing is an oxidation process and takes 2-4 weeks, longer if the paint is thicker.

I think the lakes and ponds in New Hampshire are still in ice-out! You need low humidity and 70 degree temps for fastest cure time.
Rucker is offline   Reply With Quote
Old 04-07-2021, 02:22 PM   #8
Bus Crazy
 
kazetsukai's Avatar
 
Join Date: May 2017
Location: Windham NH
Posts: 1,227
Year: 1999
Coachwork: Amtran
Chassis: International RE
Engine: International T444e
Rated Cap: 76
Quote:
Originally Posted by Rucker View Post
I think the lakes and ponds in New Hampshire are still in ice-out! You need low humidity and 70 degree temps for fastest cure time.
Currently in KY.
kazetsukai is offline   Reply With Quote
Old 04-07-2021, 02:39 PM   #9
Mini-Skoolie
 
Join Date: Jan 2017
Location: Maryland
Posts: 30
Year: 2005
Coachwork: International
Chassis: RE300
Engine: DT466E
Rated Cap: 30 + 2 WC
Rustoleum and hardener

I am one of those who used the hardener with my Rustoleum paint job. The paint could resist at least my fingernail after 2 days, although it may have still be setting up afterwards. This is what I used, just following the instructions:


https://www.tractorsupply.com/tsc/pr...t?cm_vc=-10005
skoontz is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 06:13 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
×