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LaSalle Bristol XTRM 100 Self-Leveling Sealant for RVs - White - 10.1 oz - Qty 1

LaSalle Bristol XTRM 100 Self-Leveling Sealant for RVs - White - 10.1 oz - Qty 1

Item # 34427034143-1
Our Price: $14.25
RV Roof Repair
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LaSalle Bristol RV Roof Repair - 34427034143-1
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Seal the skylights, vents, and other horizontal surfaces of your RV roof with this self-leveling sealant. Moisture-cured formula works with aluminum, wood, and PVC, and won't yellow, crack, or shrink over time. Remains flexible for RV travel. Great Prices for the best rv roof repair from LaSalle Bristol. LaSalle Bristol XTRM 100 Self-Leveling Sealant for RVs - White - 10.1 oz - Qty 1 part number 34427034143-1 can be ordered online at or call 1-636-306-4830 for expert service.
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LaSalle Bristol RV Roof Repair - 34427034143-1

  • Sealant
  • White
  • Self-Leveling
  • LaSalle Bristol
  • 10.1 Oz

Seal the skylights, vents, and other horizontal surfaces of your RV roof with this self-leveling sealant. Moisture-cured formula works with aluminum, wood, and PVC, and won't yellow, crack, or shrink over time. Remains flexible for RV travel.


  • Self-leveling sealant seals the roof membrane edges, skylights, vents, and other horizontal surfaces of your RV
    • Adheres to aluminum, brass, steel, glass, wood, PVC, polycarbonate, some fiberglass, and many plastics
    • Self-leveling settles for a low-profile seam
    • Not intended for TPO or EPDM roofs
  • Moisture-cured formula provides a weather-resistant, flexible seal
    • Won't yellow or shrink over time
    • Remains flexible for the movement of RV travel
  • Longer dry time is best for fine touches and proper tooling - 1 to 2 hours, then ready for the road
    • Applies with a standard caulking gun
    • Can be painted once cured
  • White color matches your RV


  • Coverage: 30' at 1/4" bead
  • Shelf life: 12 months
  • Quantity: (1) 10.1 oz tube

RV Sealant - Non-Sag vs Self-Leveling

The kind of sealant you apply to your RV is important. To determine the type of sealant you need for your application, you will want to consider what it is you are sealing and where it is on your RV.

Self-leveling sealant is designed to level out as you apply it. The thick liquid slowly flows into a level position as gravity takes effect. This is particularly useful when sealing flat surfaces, like around a roof vent, AC, or skylight. As you apply the sealant, gravity will cause it to settle into an even line, giving you a clean, low-profile look.

Non-sag sealant is designed to retain its shape as you apply it. The consistency of the liquid is thick but malleable enough to be easily applied without causing sagging or slumping. This is useful when sealing vertical surfaces, such as the edges of a wall, window, or vent. As you apply the sealant, it will harden just enough to keep the liquid from drooping, giving you a clean, even look.

34427034143 LaSalle Bristol XTRM 100 Self-Leveling Sealant - 10.1 oz - White - Qty 1

Video of LaSalle Bristol XTRM 100 Self-Leveling Sealant for RVs - White - 10.1 oz - Qty 1

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for LaSalle Bristol XTRM 100 Self-Leveling Sealant Review

Hi there RV and camper owners. Today, we're going to be taking a look at LaSalle Bristol's self-leveling sealant. This sealant is going to be great for sealing up any of your roof mounted accessories, or taking care of any potential leaks that you've got here on the roof. It's quick, dry, it's ready for road use after about one to two hours, so you can get right back out there on the road. And it comes in two colors. You can get it in either a white or beige.

We're going to be showing off the white today, but if you had a different color that you desired after it's cured, you can paint over top of it as well. When working on your roof, after installing things to it, you'll typically want to cover up all of your fasteners with a self-leveling sealant to ensure that you stay sealed, and we don't have any rot forming on our roof from moisture damage. The Bristol self leveling sealant is going to be a great option. And you typically want it to be a self-leveling sealant when working on your roof, because we want it to kind of spread out, level out flat with our roof and cover a large wide area, so that way we don't have water that can get in underneath our components. We're going to be using it to seal up our antenna today.

And when you ever you go to seal up your components, you want to make sure you come at least a few inches around the outside of the component. And that's why the self-leveling is really nice because as we pile it up on our component here, it is going to start to kind of settle down and spread out and that's going to help it achieve full coverage across the entire base of our components, as well as provide plenty of coverage around the outside. Because most of your roof here you see, it's kind of a textured surface, which has a lot of grooves and passageways for moisture to get into, to get underneath your objects. So that's why self-leveling sealant is so important because it covers up your components on the roof, and it also will cover up a nice area around that. So that way, these little grooves and imperfections in your roof, aren't going to create pathways that are going to lead directly to your objects.

You're going to have a nice barrier of your self-leveling sealant. When you receive your sealant, you'll use a caulk gun to apply it. I want to make sure we snip the end and then before we can actually utilize the sealant here, we do need to open it up. So we're just going to take use a screwdriver or a pick to go down in there and just pop it open. And now we're ready to use the sealant.

If you don't pop that open, when you go to squeeze your trigger here, what can happen is more often than not, it actually blows out the backside. So don't forget to pop it before you use it. We're going to make sure we come all the way up on top of the base here. We're going to be applying this all the way around. I'm just gonna go ahead and cover up the backside and kind of do each side at a time here. We're going away over our coaxial cable on this particular one, because of the way that it runs in there. You'll want to be very generous with the self-leveling sealant. Cause this is your roof. This is really important. This is what's protecting everything inside from moisture damage and stuff like that. So, they want to make sure that it stays that way. If you have any fasteners on the outside that you we're just plugging up holes with, make sure you get those coded generously as well. And so here you can see, this is kind of what we're looking for here, we've completely covered the base and we've covered it around, coming in some cases, several inches around to make sure that we've got full coverage around any of those areas. And that completes our look at LaSalle Bristol's self-leveling sealant..

Customer Reviews

LaSalle Bristol XTRM 100 Self-Leveling Sealant for RVs - White - 10.1 oz - Qty 1 - 34427034143-1

Average Customer Rating:  4.7 out of 5 stars   (25 Customer Reviews)

Seal the skylights, vents, and other horizontal surfaces of your RV roof with this self-leveling sealant. Moisture-cured formula works with aluminum, wood, and PVC, and won't yellow, crack, or shrink over time. Remains flexible for RV travel.


Great product, I followed the instructions posted on the etrailer website and everything went perfectly. I didn’t even have to trim the inside cowling. I’ve included some pics with this review. Took all of 1 1/2 hrs from start to finish. This replaced a paddle fan in a destination trailer and it had already been framed for a 14” square hole.


I had two skylights that were leaking. I replaced both and used this sealer. It was easy to apply and worked flawlessly.


this works great on PVC roofs


Sorry about the delay but this is an excellent product,it does what it is designed to do perfectly


works great easy install


It works as it is described, easy to apply and levels, not too runny.


Product worked as intended. Customer service exceptional.


After 1 year still holding strong for the max air roof fan. Time will tell


Nothing better to fix those small spots that all rv’s get. Easy to work with. Does a great job. great!

Working great so far, after a year it’s still in place and pliable
Jeffrey - 03/14/2021


Quick delivery...thank you


All ordered items arrived in great shape on time
After watching install Video the install was easy and the part fit as advertised. Very pleased with this parts quality.


Exactly what we were looking for! Great products and service is awesome!


Great service and price. Immediate delivery. What else could you ask for?









I got what I ordered



Worked as said





See what our Experts say about this LaSalle Bristol RV Roof Repair

  • Shelf Life of LaSalle Bristol XTRM 100 Self-Leveling Sealant # 34427034143-1
    You'll want to use the LaSalle Bristol XTRM 100 Self-Leveling Sealant # 34427034143-1 within a year of purchasing it. Some say that sealants like this are good for 18 months but to be on the safe side I'd recommend planning to use it before a year passes.
    view full answer...
  • Recommendations For Cleaning Up Lasalle Bristol XTRM 100 PVC Sealant
    I want to make sure I answer this adequately, so I have two different answers. First will be general care once applied and the other will be removal. So to start, soap and water or a mild cleaner/detergent will definitely keep the LaSalle Bristol XTRM 100 Self-Leveling Sealant # 34427034143-1 in good condition once applied and let to dry. I would avoid any cleaners or soaps that have dye in them as these can stain things over time. Some of the chemicals in these can also cause the sealant...
    view full answer...
  • Can LaSalle Bristol XTRM 100 Self-Leveling Sealant Be Used To Secure Solar Panels To A PVC Roof?
    Yes, you can use the: -LaSalle Bristol XTRM 100 Self-Leveling Sealant for RVs # 34427034143-1 to adhere your drill-free solar panels. You will just need to make sure that you're using some corner mounts like the Redarc Solar Panel Corner Mounts # RED79VR.
    view full answer...
  • Can Ultra-Fab Solar-Powered Plumbing Vent Be Installed on Camper Without a Vent
    Yup! The Ultra-Fab Solar-Powered Plumbing Vent # UF53-945001 can definitely be installed on a camper that currently doesn't have a vent. You'll just need to make a cutout in the desired location, and then I recommend picking up some sealant like part # 34427034143-1 to help prevent water from getting into your camper. Attached are some installation videos for you to check out!
    view full answer...
  • Patching a PVC/Rubber RV Roof
    Nothing to worry about, we have cost effective patch kits to help with your situation so you that you will not have to replace the whole roof. We have the Patch Strip for RV Roof Membranes, # QR27FR that is 6' x 8". And for 20' x 4" option there is, # QR62VR. This is a UV-resistant material that withstands up to 2 years of direct exposure to sunlight and designed for use with any surface. As well as the Quick Roof Repair Tape for RV Roofs that is 25' Long x 4" Wide, # QR34FR. For the...
    view full answer...

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Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Amanda M
Edited by:
Amanda M
Employee Jonathan Y
Video by:
Jonathan Y
Employee David F
Installed by:
David F
Employee Halie H
Written by:
Halie H

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