Reply
 
Thread Tools Display Modes
Old 03-03-2020, 02:35 PM   #1
Senior Member
 
Join Date: Jan 2013
Posts: 2,367
Removing old caulk tips

I need to do some maintenance to the 5th wheel. I’m going to re-caulk the seams around the outside of the unit. What methods/tools have others used to remove the old caulk without doing damage to the outside wall of the RV? Thx for any advice.
__________________

__________________
2016 Siverback 33IK, Towed 30K+ miles
2018 Ford F-350 Lariat 6.7L V8 Diesel 4WD Crew Cab
Andersen Ultimate Hitch

"If you don't know where you are going, any road will get you there."
dalford is offline   Reply With Quote
Old 03-03-2020, 02:42 PM   #2
Senior Member
 
Thurman's Avatar
 
Join Date: Aug 2011
Location: Albany, GA.
Posts: 1,229
What type outside walls do you have, metal or fiberglass? IF fiberglass I would be careful not to scratch the fiberglass while removing any caulk. Tools: 1) a heat gun. You might get by with a hair dryer but I have not had good luck with those warming up caulk. Use the heat gun to warm up the old caulk so that it will be easier to remove. 2) A painters putty knife. These are not just flat on the end, it will have a sort of "hook" to help get into seams to remove old caulk/sealant. 3) Lexel sealant to replace the old caulk. Lexel works better than silicone on outside surfaces of RV's and can be removed later. 4) Elbow grease, and you will need plenty of it.
__________________

__________________
2015 FR Freedom Express 310BHDS pushing a 2014 GMC Sierra CC
Thurman is offline   Reply With Quote
Old 03-03-2020, 03:44 PM   #3
Senior Member
 
Join Date: Jan 2013
Posts: 2,367
Quote:
Originally Posted by Thurman View Post
What type outside walls do you have, metal or fiberglass? IF fiberglass I would be careful not to scratch the fiberglass while removing any caulk. Tools: 1) a heat gun. You might get by with a hair dryer but I have not had good luck with those warming up caulk. Use the heat gun to warm up the old caulk so that it will be easier to remove. 2) A painters putty knife. These are not just flat on the end, it will have a sort of "hook" to help get into seams to remove old caulk/sealant. 3) Lexel sealant to replace the old caulk. Lexel works better than silicone on outside surfaces of RV's and can be removed later. 4) Elbow grease, and you will need plenty of it.
I guess it is not caulk but a product called Geocell. I think they use it at the Cedar Creek factory and Orvin gave me a tube when I visited his shop. Pretty hard right now.

I have fiberglass. I guess I can try the heat gun technique carefully. Thanks for the reply and tips..
__________________
2016 Siverback 33IK, Towed 30K+ miles
2018 Ford F-350 Lariat 6.7L V8 Diesel 4WD Crew Cab
Andersen Ultimate Hitch

"If you don't know where you are going, any road will get you there."
dalford is offline   Reply With Quote
Old 03-03-2020, 04:26 PM   #4
Senior Member
 
Join Date: Jan 2013
Posts: 2,367
This is what I have. Orvan gave me this tube when I visited. He re-sealed using this...
Attached Thumbnails
Click image for larger version

Name:	7C48B6BA-8C49-4748-8D84-226DD94CF1F8.jpg
Views:	64
Size:	313.2 KB
ID:	224399  
__________________
2016 Siverback 33IK, Towed 30K+ miles
2018 Ford F-350 Lariat 6.7L V8 Diesel 4WD Crew Cab
Andersen Ultimate Hitch

"If you don't know where you are going, any road will get you there."
dalford is offline   Reply With Quote
Old 03-03-2020, 04:51 PM   #5
Head Rambler
 
Join Date: Mar 2008
Location: Southwest Alabama
Posts: 7,471
Get a set of auto trim tools with the wide scrapers and you won't damage the skin if you use those.

I just changed a baggage door on our RV and the caulking was really hard. I used a chisel to break a seam in the middle of it without touching the siding or the door frame, and then used the scrapers to lift it off the siding. It came off clean once I did that.
__________________
Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
Bama Rambler is offline   Reply With Quote
Old 03-03-2020, 05:02 PM   #6
Senior Member
 
Join Date: Jul 2017
Location: North of Seattle, WA
Posts: 6,980
Just curious but has anyone ever used an oscillating multi-tool like a Fein, Dremel, Rigid, etc to remove caulk. I see calk removing tools sold for them. The blades on these tools oscillate back and forth very little but quite fast and it would seem that they could be controlled well enough to only cut the calk without damaging adjoining surfaces.

Just curious.
__________________
"A wise man can change his mind. A fool never will."

"Sometimes you're the dog, sometimes you're the tree"

2018 Flagstaff Micro Lite 25BDS
2004 Nissan Titan
TitanMike is offline   Reply With Quote
Old 03-03-2020, 05:08 PM   #7
Head Rambler
 
Join Date: Mar 2008
Location: Southwest Alabama
Posts: 7,471
I have a couple of those and they're great for lots of tasks, but one slip and you'd have a gouged wall or roof.

I have used the smooth putty knife blades on them to remove caulking around the house and they work great, but I'm not brave enough to try it on the RV where paint won't hide it.
__________________
Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
Bama Rambler is offline   Reply With Quote
Old 03-03-2020, 06:10 PM   #8
Member
 
Join Date: Jan 2020
Posts: 99
It has not been mentioned yet in this thread. So... never use silicone based caulk anywhere you will need to remove it and replace with fresh caulk. Not even fresh silicone will stick to cured silicone.
__________________
Hobienick

2020 Rockwood Roo 19
2012 F150 SuperCrew Ecoboost
hobienick is offline   Reply With Quote
Old 03-04-2020, 06:16 AM   #9
Junior Member
 
Join Date: May 2015
Posts: 18
Have used the caulk removal tools at the hardware stores, there are metal and plastic. For the residue GooGone makes a caulk removal spray.
c3prret is offline   Reply With Quote
Old 03-04-2020, 07:45 AM   #10
Senior Member
 
spicercars's Avatar
 
Join Date: Oct 2019
Location: Saginaw MN
Posts: 320
Do not use a multi tool you will do more damage trying to remove the caulk. What I did on mine was waited for a sunny day and let the sun warm up one side of the unit. I used plastic tools that I found at Menards and it really worked well. Took me a couple of days to do the whole thing but it turned out great. Lots of patience.
__________________
2020 Wolf Pack 23GOLD15
1998 Dodge Ram 3500 Cummins Diesel Dually
spicercars is offline   Reply With Quote
Old 03-04-2020, 01:33 PM   #11
Senior Member
 
Join Date: Oct 2015
Location: Wisconsin/Florida
Posts: 1,406
Quote:
Originally Posted by c3prret View Post
Have used the caulk removal tools at the hardware stores, there are metal and plastic. For the residue GooGone makes a caulk removal spray.
Applying GooGone to caulk will soften it and make it easier to remove. It won't hurt the fiberglass.
PenJoe is offline   Reply With Quote
Old 03-04-2020, 01:47 PM   #12
Senior Member
 
rollscanardly's Avatar
 
Join Date: Nov 2016
Location: Saunderstown, RI
Posts: 656
For removing old sealants, I've had the best results using a soldering gun with a rope cutting attachment.


See Post # 36...


https://www.forestriverforums.com/fo...-125403-2.html


https://www.parts-express.com/weller...g-gun--372-072


Rich
__________________
"rolls down one hill, can 'ardly make it up the next..."

1999 21' Wildwood WDF21RK

2006 Dodge Ram 2500, 4x4, Quad cab, 5.9L Cummins, 3.73 gears.
rollscanardly is offline   Reply With Quote
Old 03-04-2020, 01:47 PM   #13
Member
 
DRM796's Avatar
 
Join Date: Oct 2011
Posts: 68
This might be a side bar but I am correct in saying the products like Geocel and Proflex will adhere to itself?
__________________
2019 Alpine 3700fl
2016 Chevy Silverado 3500HD DRW High Country
"Best money we ever wasted"
2012 Wildcat 313RE traded in 5/2018
DRM796 is offline   Reply With Quote
Old 03-15-2020, 01:02 PM   #14
Senior Member
 
Join Date: Mar 2016
Location: Pleasant Prairie WI
Posts: 201
Drm796,
Geocel is the company that makes Proflex. Looking at the tube directions now, it says to apply to clean dry surface free of any foreign matter.

It is all I use on the gel coated fiber glass vertical surfaces of my MH. It will adhere to itself following the above precautions but I only overlap recent or fresh work (at least let it be skimmed over which doesn't take long). But, for the most part because I tool using a finger dipped into a heavy concentration of Dawn with water, I find to get the smoothest tooling I need the old stuff gone.

To remove Proflex you can usually grab an edge and it pulls out in long pieces. Dont use a heat gun, there's too much plastic trim pieces which will melt, including your roofing. A hair dryer isn't necessary either for Proflex.

To tool, apply a thin bead a foot or two at a time and lightly tool as described above. Dont try to push Proflex into a seam, it just makes for a sloppy caulk job.

Chris
Quote:
Originally Posted by DRM796 View Post
This might be a side bar but I am correct in saying the products like Geocel and Proflex will adhere to itself?
__________________
2006 Sunseeker 2860DS
Powertrain: Ford V10 5 Speed Torq flite
Winegard T4 In Motion Satellite Dish
Furion Vison S Observation/Rear Camera
RecPro 70" Dual Recliners
Mohawk Luxury Vinyl Plank Flooring
parise is offline   Reply With Quote
Old 03-15-2020, 02:54 PM   #15
Member
 
DRM796's Avatar
 
Join Date: Oct 2011
Posts: 68
Quote:
Originally Posted by parise View Post
Drm796,
Geocel is the company that makes Proflex. Looking at the tube directions now, it says to apply to clean dry surface free of any foreign matter.

It is all I use on the gel coated fiber glass vertical surfaces of my MH. It will adhere to itself following the above precautions but I only overlap recent or fresh work (at least let it be skimmed over which doesn't take long). But, for the most part because I tool using a finger dipped into a heavy concentration of Dawn with water, I find to get the smoothest tooling I need the old stuff gone.

To remove Proflex you can usually grab an edge and it pulls out in long pieces. Dont use a heat gun, there's too much plastic trim pieces which will melt, including your roofing. A hair dryer isn't necessary either for Proflex.

To tool, apply a thin bead a foot or two at a time and lightly tool as described above. Dont try to push Proflex into a seam, it just makes for a sloppy caulk job.


Chris
Good info. Thanks for sharing Chris
__________________
2019 Alpine 3700fl
2016 Chevy Silverado 3500HD DRW High Country
"Best money we ever wasted"
2012 Wildcat 313RE traded in 5/2018
DRM796 is offline   Reply With Quote
Old 04-02-2020, 10:44 PM   #16
Senior Member
 
Hclarkx's Avatar
 
Join Date: Jan 2015
Location: Granite Bay, Ca
Posts: 308
Somewhere years ago I got a supply of bamboo paint stirring sticks. They are about 5/8" wide, 1/8" thick, and a foot long. I use my bench grinder to put a chisel end on them for scraping stuff off of plastic or other damageable surfaces. The bamboo is hard and holds an edge well, but not hard enough to dig into plastic unless the plastic is very soft which it usually is not. I re-sharpen as needed though the edge holds well. Before I ran into the bamboo paint stirring sticks, I used oak that I cut into strips of about the same dimension and made scraper out of them.
__________________

__________________
2020 GMC Denali 2500HD Crew 4X4 Gas 6.6L
2015 8280WS Rockwood raised 3"
600W solar 300AH LFP battery 900W PSW inverter
Hclarkx is offline   Reply With Quote
Reply

Tags
caulk

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

Disclaimer:

This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.



All times are GMT -5. The time now is 10:02 AM.


×