Free 7 Day Trial RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Free 7 Day Trial ×
Sunline RV Forum
Sunline User Photos

Go Back   Sunline Coach Owner's Club > Model Specific Forums > Sunline Que
Click Here to Login

Join Sunline Club Forums Today

Thread Tools Search this Thread Display Modes
Old 08-02-2021, 12:05 PM   #1
Junior Member
Join Date: Jul 2020
Location: Virginia
Posts: 15
SUN #12107
ibirman is an unknown quantity at this point
Caulk front window?

We have a small leak in the front window, I think I just need to re-caulk around the outside and check the seam above it on the roof. What kind of caulk can I use for the window, just regular outdoor window caulk from Home Depot, or is there something specific for RVs?

I'll clean and re-add Dicor on the roof above as well.


ibirman is offline   Reply With Quote
Old 08-02-2021, 10:05 PM   #2
JohnB's Avatar
Join Date: Nov 2006
Location: Ohio
Posts: 11,748
SUN #89
JohnB is on a distinguished road
Hi Igor,

Many of the home type sealants really do not last long on the camper application when doing siding sealing. The flexing of the camper creates flexing that does not occur on a house.

If you are talking about a leak between the siding and the front window frame, I use this product, Proflex RV,

They sell it ay many places that sells RV parts. Pic the color that matches your camper.

A few tips on applying it:
- Make sure you clean all the dirt off stuck to the old putty tape. That black yuk will turn gray when you get all the dirt and mold off.
- When smoothing it out, cut the tube tip small. Gun it on as good as you can.
- Using a soapy wet finger, tool it out, (spread it out) smooth it out. Keep your finger wet and it will smooth out nice.
- Do not apply on a hot summer day, it dries to fast.
- Only apply about 2 to 3 feet length of caulk, tool it out, then apply more. If you put all the caulk on an entire front window at once, it will tack up too much, drag, and make a mess when you start tooling it out.

You did not mention if the leaks was on the glass to metal frame, if it is glass to frame, Proflex RV does come in clear also and is glass rated. I use Parbond on glass sealing, I find it here at PPL.

While I have not used the Proflex on glass, the product is very good and if Geocel rates it on glass, if I could not get the Parbond, I would try it.

Hope this helps


Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC

Google Custom Search For Sunline Owners Club
JohnB is online now   Reply With Quote
Old 08-12-2021, 11:21 AM   #3
Junior Member
Join Date: Jan 2011
Posts: 1
SUN #1853
jammcurran is an unknown quantity at this point
Front window leak

If it is leaking between the camper and window frame I recommend pulling the window frame and redoing the sealant compressed between. If the sealant is not under compression it tends to crack/lift and breakdown the seal in short time.
jammcurran is offline   Reply With Quote
Old 08-12-2021, 12:04 PM   #4
Junior Member
Join Date: Jul 2020
Location: Virginia
Posts: 15
SUN #12107
ibirman is an unknown quantity at this point
Thanks for the advice, I replaced the caulking on the outside of the frame with Proflex RV sealant, it's keeping everything dry so far, I'll look out for any issues and I'll pull the frame if it starts doing it again.
ibirman is offline   Reply With Quote

« tailight housings | - »

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Front window rock guard refurbished Lode Modifications 1 06-01-2008 08:45 PM
Rep[lacement of front window Janbill Repairs and Maintenance 1 08-28-2007 05:40 PM
2006 solaris 2363 I would like to repace front window Janbill Modifications 1 08-28-2007 01:09 PM
opening front window Tweety Sunline Community 4 08-22-2007 08:36 AM
Front Window Cover Supports wobbly Sunline Community 2 06-14-2007 05:52 PM

» Featured Campgrounds

Reviews provided by


This website is not affiliated with or endorsed by Sunline RV or any of its affiliates. This is an independent, unofficial site.

All times are GMT -6. The time now is 11:14 PM.