View Cart
LaSalle Bristol XTRM Universal Self-Leveling Sealant - White - Qty 1

LaSalle Bristol XTRM Universal Self-Leveling Sealant - White - Qty 1

Item # 34427034145-1

lowest price pledge

Our Price: $6.95

RV Exterior

Orders above $99 qualify for Free Shipping

Shipping Weight: 0.95 lbs

In Stock
LaSalle Bristol XTRM Universal Self-Leveling Sealant - White - Qty 1 Sealant 34427034145-1
zoom in icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
Please enter a valid email address.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

pop out icon replay 360 icon
horizontal rotate icon

Product Images

In Use/Installed


  • Roofing
  • White
  • LaSalle Bristol
  • Sealant
  • 10.1 Oz - 1 Tube
Lowest Prices for the best rv exterior from LaSalle Bristol. LaSalle Bristol XTRM Universal Self-Leveling Sealant - White - Qty 1 part number 34427034145-1 can be ordered online at or call 800-298-8924 for expert service.

  • All Info
  • Reviews (12)
  • Q & A (16)
  • Videos (1)
  • Photos
  • Why etrailer?

LaSalle Bristol RV Exterior - 34427034145-1

  • XTRM universal sealant adheres to all RV roof membranes
    • Adheres to aluminum, brass, steel, glass, mortar, wood, PVC, EPDM, TPO, and TPV
  • Self-leveling for horizontal surfaces
  • Weather-resistant
  • Remains flexible for years
  • No primer required
  • Paintable
  • White color
  • Quantity: (1) 10.1 oz tube

34427034145 LaSalle Bristol XTRM Universal Self-Leveling Sealant - 10.1 oz - White - Qty 1

Video of LaSalle Bristol XTRM Universal Self-Leveling Sealant - White - 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 Universal Self-Leveling Sealant Review

Speaker 1: Today we're going to be taking a look at the LaSalle Bristol universal self leveling sealant in white, part number 34427034145-1. As you can see with this sealant, after only a few minutes it is going to start to disperse and start to level itself out, so it's to still in all these little gaps on its own, without having to go around with a putty knife and smooth it out. Once it dries, it is going to be paintable, but still remain flexible. And it is due to adhere to most surfaces like aluminum, wood, and even concrete.And this is to make sure that our vent seals nicely, and there's no leaks on the exterior part of our vent. You will need a caulk gun, which you can pick up at your local hardware store, to apply it to the roof. With all of the hardware in place around the vent, it's securely attached, we want to make sure there's no leaks.

So we're going to come back with the self leveling sealant and we're going to make sure to cover up the bolt holes, as well as that outside flange.So just go in zigzag motion going across. And that'll finish up your look at the LaSalle Bristol universal self leveling sealant in white.

Customer Reviews

LaSalle Bristol XTRM Universal Self-Leveling Sealant - White - Qty 1 - 34427034145-1

Average Customer Rating:  4.9 out of 5 stars   (12 Customer Reviews)

- 34427034145-1

I called to try to locate tail light lenses for my Heartland RV Trailer. I was lucky enough to speak with James A.. He guided me on the web site to the parts I needed and even let me know LED upgrades were available. I asked about weather proofing sealants and he knew right away what I needed. I ordered 2 tail light assemblies and 2 tubes of the caulk. They arrived in 2 days which was several days sooner than I expected. I also checked campingworld for the items and found that beat them by about 40% on price. I have a new "go to" place for my RV trailer needs. Thanks again James for being knowledgeable and super fast. 605361

- 34427034145-1

Worked great. 613208

- 34427034145-1

product is as described 582182

- 34427034145-1

Great product. Still well within expiration date. Fast shipping. I always have good dealings with etrailer. Great company. Thanks. 669066

- 34427034145-1

This us a great product when applied to replaced or repaired roof !! 659400

- 34427034145-1

Great product. I used this to seal a new vent installation and it works perfectly. It is "self leveling" so expect it to spread out after you run a bead of it. I bought some extra tubes and I'm glad I did. When I installed the vent, I found the seal around our skylight to be cracked. Before I applied the product, I used a good cleaner and rag to clean the area to get a good seal. I'll use this again in the future. 649906

- 34427034145-1

Product came quickly haven't had a chance to use it on the roof yet! 619362

- 34427034145-1

just what I needed 617173

- 34427034145-1

Perfect for installing new vents and sealing them highly recommend!!! 593975

- 34427034145-1

Wow! great light at a good price. 582183

- 34427034145-1

I pleased that etrailer had what I need ed. 579513

- 34427034145-1

Great product, used to seal outside of replacement skylight and to cover up the screws. Used 2 tubes on a 18”x28” skylight, freshened up existing seals around vents and what not. Very happy with product. 549543


Ask the Experts about this LaSalle Bristol RV Exterior
Do you have a question about this RV Exterior?

  • Recommended Sealant for Metal Roof on Atco Trailer
  • The LaSalle Bristol XTRM sealants are what I recommend using for sealing up the metal roof on your Atco trailer. For a white sealant you will want to use part # 34427034145-1 for horizontal applications and part # 344270341437-1 for vertical applications. For a beige we have part # 34427034146-1 for horizontal and part # 344270341438-1 for vertical. These can be used for a variety of applications and will do a fantastic job at resisting rain and snow. The sealants above are great for...
    view full answer...

  • Supplies Needed to Install Replacement Ceiling Vent
  • The MaxxFan Deluxe Roof Vent w/ 12V Fan and Thermostat # MA00-06200K will install in the exact same cutout as the stock vent. You will simply need some sealant and screws. Many will choose to use the Roof Vent Installation Kit - Sealant, Butyl Tape, Screws - White # 344270KITW. You don't absolutely need both butyl tape and sealant, so many will use the LaSalle Bristol XTRM Universal Self-Leveling Sealant - White - Qty 1 # 34427034145-1 or # 0160297 and then the Zinc Sheet Metal Screw...
    view full answer...

  • How to Remove Old RV Water Heater to Install New Unit
  • When removing a water heater, you want to remove the cover completely first and then the screws in the face plate. Next make sure you have drained all of the water from the unit. You will want to remove your electric connection and propane connection before removing those features. The outside edge of the frame is normally sealed so you will need to carefully remove caulk to allow the frame to move freely. On the underside, you should have an access panel to get to your water and electrical...
    view full answer...

  • Removing Roof Sealant Tips for R-Pod Camper
  • Mineral spirits/paint thinner will take off the residue of the LaSalle Bristol Xtrm # 34427034145-1 once you remove the bulk of it with a putty knife. As far as the use of it for an install you'll want to get the area as clean as possible before application. I attached an install video for the similar kit part # 3442703414KIT for you to check out as well.
    view full answer...

  • Camper Roof Rack Options for 2013 Jay Flight Swift with Rounded Edges
  • If you don't have squared edges on your 2013 Jay Flight Swift camper for the SportRack Pop-Up Camper Roof Rack # SR1020 to install then you will want to look at another roof rack that is compatible with your application. We have the Swagman Roamer LT # S80510 which is a completely custom option that you can install anywhere on your roof as well as the SeaSucker Monkey Bars Roof Rack # 298-SX6000 which uses vacuum cups to secure to the roof. The Swagman options are permanent roof...
    view full answer...

  • Is LaSalle Bristol XTRM Universal Self-Leveling Sealant Comparable to Dicor Lap Sealant
  • The LaSalle Bristol XTRM Self-leveling Sealant part # 34427034145-1 is very comparable to the Dicor 501LSW self leveling lap sealant. I can't say exactly what the formula is for Dicor but I can tell you that LaSalle Sealant is a silicone sealant used in numerous applications including the installation of RV roof accessories and we have great reviews from customers. It works well on Fiberglass and adheres to aluminum, brass, steel, glass, concrete, wood, and PVC. It also adheres to EPDM...
    view full answer...

  • Trailer Roof Vent Recommendation for 110V Shore Power
  • The MaxxFan Deluxe Roof Vent # MA00-06200K is designed for use with 12V power. If you wanted to power it using shore power then the best way to do that would be with a converter like the Progressive Dynamics PD9100 Series Inteli-Power Converter # PD9140A which is meant to connect to 12V lighting and appliance circuits. Currently (as of February 2019) the only trailer roof vent available that is compatible with 110V shore power without a converter is the Ventline Roof Vent # V2128SP-01....
    view full answer...

  • Sealant Recommendation for Installing RV Ladder on Roof
  • Dicor brand RV roof sealant would be a great choice. We have the LaSalle Bristol XTRM Universal Self-Leveling Sealant # 34427034145-1 would work great for sealing the roof mounting points on the RV ladder after screwing the ladder in place.
    view full answer...

  • Will the Fan-Tastic Vent Roof Vent FV800900 Replace A Fan-Tastic Vent Roof Vent FV801200
  • The Fan-Tastic Vent RV or Trailer Roof Vent part # FV800900 installs in the same size opening as the Fan-Tastic Vent Roof Vent w/ 12V Fan part # FV801200 therefore you don't need to worry about measuring as it will fit your 14" x 14" opening just fine. The measurements can vary slightly depending on where they are taken so the 1/4" discrepancy is not anything you need to worry about. If you don't already have any sealant you can use part # 34427034145-1 for this.
    view full answer...

  • Diameter of the Base on the Lippert Components 360 Siphon RV Holding Tank Vent Cap LC389381
  • The roof vent on your trailer is most likely for black water tank. The Lippert Components 360 Siphon RV Holding Tank Vent Cap part # LC389381 has a base with a 4" outer diameter. The holes most likely won't line up with your existing roof vent but you can drill new ones, jut make sure to seal everything up with part # 34427034145-1. The Lippert Components 360 Siphon RV Holding Tank Vent Cap is designed for a 1-1/2" or 2" diameter vent stack which is a standard size so as long as this is...
    view full answer...

  • When is Non-Sagging Universal Roof Sealant Preferred Over Self-Leveling
  • You'd want to use the non-sag sealant part # 344270341437-1 on vertical applications where you wouldn't want the sealant to drip or run. The # 34427034145-1 is better for horizontal applications as it's self-leveling, but it would run or drip on a vertical application.
    view full answer...

  • Recommended Sealant for Roof on Pop-Up Camper
  • The sealant I recommend for your 2009 Fleetwood Bayside pop-up is the LaSalle Bristol XTRM Universal Self-Leveling Sealant # 34427034145-1. It is designed to work on roofs and is weather-resistant; this sealant is White though there is also Beige at part # 34427034146-1. Both of these sealants are paintable as well. I have added a link to a video review of this sealant for you to take a look at.
    view full answer...

  • Recommended Roof Rack and Kayak Carrier for 2 Kayaks on a 2000 Coleman Hayride Pop-Up Camper
  • Since you have a bare roof on your 2000 Coleman Hayride we need to start you off with a roof rack. The Swagman Roamer LT Roof Rack for Pop-Up Campers # S80510 is a great option because it features a 150 lb weight capacity and 7' long crossbars that can be cut to meet your application. This does require drilling into the roof of your camper but you can seal the feet with LaSalle Bristol XTRM Universal Self-Leveling Sealant # 34427034145-1 to ensure that your camper won't leak. Then for...
    view full answer...

  • Replacement Roof Vent for a 1993 Gulf Stream Conquest 102
  • The roof vents installed in trailers are not all the same depth. However, the garnish ring which is included for you is trim to fit so it can accommodate trailers with varying roof thicknesses. The dimensions you have of 14" x 14" are standard so this is not really anything you need to worry about either. The actual cutout will be 14-1/4" x 14-1/4". I recommend the Ventline Ventadome Trailer Roof Vent part # V2092SP-28 which fits roofs from 1-7/8" to 3" thick and should be perfect for...
    view full answer...

  • Can I Use The MaxxFan Roof Vent In Standard 14-1/4” X 14-1/4” Opening
  • The MaxxFan Roof Vent part # MA00A04301K is listed as a 14"x14" opening but it will fit the standard 14 1/4” X 14 1/4” opening that you have. A lot of our customers use this fan in the standard 14 1/4” X 14 1/4” opening so you won't have any issues. You also need self-leveling sealant part # 34427034145-1 to install the vent.
    view full answer...

  • Will Ventline Ventadome Trailer Roof Vent Fit 14 x 14 Opening
  • All trailer roof vents nowadays fit what is referred to as a standard roof vent opening, which is described as "roughly" 14-1/4" x 14-1/4" so the Ventline Ventadome Trailer Roof Vent # V2110SP-24 might be able to squeeze into a 14" x 14" opening but in reality it is pretty situational as most openings aren't exactly 14" x 14" or 14-1/4" by 14-1/4" because of the minute nature of the measurement. So it is a possibility you will need to trim the opening of your roof ever so slightly to get...
    view full answer...

Do you have a question about this RV Exterior?

  • Why

    At we guarantee:

  • Highest quality rv exterior for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate rv exterior information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Satisfaction Guarantee
    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Expert Research:
Jameson C
Video by:
Kathleen M
Video Edited:
Chris R
Edited by:
Amanda M
Test Fit:
Shane H
Installed by:
Robert C
Written by:
Halie H
Video by:
Michael B

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.