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  1. RV Roof Repair
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Alpha Systems AlphaThane 5121 Self-Leveling Sealant for RVs - Gray - 9.8 oz - Qty 1

Alpha Systems AlphaThane 5121 Self-Leveling Sealant for RVs - Gray - 9.8 oz - Qty 1

Item # AL45KV
Our Price: $15.84
RV Roof Repair
Shipping Weight: 1.16 lbs
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Seal the skylights, vents, and other horizontal surfaces of your RV roof with this self-leveling sealant. Strong, weather-resistant formula works with wood, metal, and glass. Sealant has a longer lifespan and remains flexible for RV travel. Great Prices for the best rv roof repair from Alpha Systems. Alpha Systems AlphaThane 5121 Self-Leveling Sealant for RVs - Gray - 9.8 oz - Qty 1 part number AL45KV can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (8)
  • Q & A (0)
  • Videos (1)
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Alpha Systems RV Roof Repair - AL45KV

  • Sealant
  • Gray
  • Alpha Systems
  • 9.8 oz

Seal the skylights, vents, and other horizontal surfaces of your RV roof with this self-leveling sealant. Strong, weather-resistant formula works with wood, metal, and glass. Sealant has a longer lifespan and remains flexible for RV travel.


Features:

  • Self-leveling sealant seals the roof membrane edges, skylights, vents, and other horizontal surfaces of your RV
    • Adheres to wood, metal, and glass
    • Self-leveling settles for a low-profile seam
  • Rubber-based formula provides a weather-resistant, flexible seal
    • High solid concentration for a longer lifespan
    • Low VOC means less air pollution
    • Remains flexible for the movement of RV travel
  • Longer dry time is best for fine touches and proper tooling - 48 hours, then ready for the road
    • Applies with a standard caulking gun
    • Can be painted once cured
  • Gray color matches your RV
  • Made in the USA


Specs:

  • Coverage: 30' at 1/4" bead
  • Viscosity: 45,000 - 60,000 centipoise
  • Shelf life: 12 months
  • Quantity: (1) 9.8 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.



862220 Alpha Systems MS Polymer Sealant 5160 - Gray - 9.8 oz





Video of Alpha Systems AlphaThane 5121 Self-Leveling Sealant for RVs - Gray - 9.8 oz - Qty 1

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




Video Transcript for Review of Alpha Systems RV Roof Repair - Gray Self-Leveling Sealant - AL45KV

Hi there. I'm Michael with etrailer.com. Today, we're going to take a quick look at the Alpha Systems MS Polymer Sealant. This is a sub self leveling sealant. it's going to be great for working on your RV roof. Maybe if you just put down a new roof, you're wanting to put all of your air conditioning and vents back in place, or if you're just replacing any of those components, you want a self leveling sealant like this.

When you put your bead down, it is going to gradually spread out to make sure that you have a nice seal cover over all of your components, so you don't have to worry about rain water getting in or anything like that. This is going to be for your level flat surfaces. It's not going to be for your vertical surfaces.If you're putting in a window or a door or something like that, you're going to want Non Sag. That's a different kind of product, but that holds its shape. It doesn't run down like this would.

Just be sure that you're getting the right sealant for your application. This is an MS Polymer. It's going to be great. It's got a modified silicone, so it's very strong, durable. It's got a tensile strength of 225 PSI, sorry, pounds per square inch.

If you're wanting to have something that's going to hold up well, give you that nice level seal and give you a lot of durability, this is going to be a great option for you. This can be used indoors or outdoors. If you do have something inside that's going to have a level surface to it, you can use it inside as well. This is the white option. It does come in four different colors.

You can have a white, almond, beige or gray.I do want to show you some of those other options as well, so that you can see the difference between the almond and the beige specifically. You can see with the labels up here. The almond is more like a light tan color. The beige has more gray in it. It's like a mix between the gray and the almond. Then your gray doesn't have very many warm tonalities to it at all. It's de-saturated. Depending on what your roof membrane or whatever your application is that you're applying this to, that will determine the color that you want. We do have all four options here, etrailer.com. All of these are going to be your 9.8 ounce size. They're going to do a good job.I would say that you'd probably be able to do a whole air conditioning system, putting one in with one of these tubes. Depending on how many vents and things that you're planning on putting in, I will determine how much that you need. Now, these can be applied with your standard caulk gun. They include the nozzle here that just screws in place like I just did, so that you can easily use the caulk gun to run this along. You can also use a trowel or a stiff brush to apply it,It's made in the USA, so you can trust it's made to the high quality standards that we've come to know and trust for products made here in the US. I think it's going to do a really good job for you. It takes about 15 minutes to set up the tack-free time is about 15 minutes. Not very long at all. There's self leveling, so you do want to give it some time to settle in and to set up before you drive down the road or anything, or get it wet. This is a good idea to install it on a nice dry day with a clean surface, to make sure that everything is going to heal properly.If you're looking for a self leveling sealant, I think this is going to be a great option for you. We do have all four colors to match your setup. That's going to complete our look for today. Again, I'm Michael with etrailer.com. Thanks for watching.


Customer Reviews

Alpha Systems AlphaThane 5121 Self-Leveling Sealant for RVs - Gray - 9.8 oz - Qty 1 - AL45KV

Average Customer Rating:  4.8 out of 5 stars   (8 Customer Reviews)

Seal the skylights, vents, and other horizontal surfaces of your RV roof with this self-leveling sealant. Strong, weather-resistant formula works with wood, metal, and glass. Sealant has a longer lifespan and remains flexible for RV travel.

by:

I think this is one of the best companies that I have dealt with. I recently received a damaged solar panel, called them and they immediately resolved the problem and later that same night I noticed they had already shipped out a new one.
The customer service is THE BEST!!

Highly recommended

Thank you



by:



by:

One tube is way more than I needed but I was lucky to have spoken with Bill in CS and didn't feel the need to purchase the product specified in the installation instructions.



by: 09/09/2022



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See what our Experts say about this Alpha Systems RV Roof Repair

  • Difference Between The Alpha Systems 1021 and 5121 Self-Leveling Sealants
    Both the Alpha Systems 1021 Self-Leveling Sealant for RVs - White - 10.3oz - Qty 1 # AL98KV and the Alpha Systems AlphaThane 5121 Self-Leveling Sealant for RVs - Gray - 9.8oz - Qty 1 # AL45KV are good for use on TPO roofing and will allow you to re-caulk your roof accessories for a water tight seal. The only difference between these two sealants is that the 5121 has a longer drying time which will allow you more time to get it exactly how you want. Also, the # AL45KV is gray while the AL98KV...
    view full answer...
  • How To Remove Cracked Sealant From An RV Skylight
    Having firsthand experience with removing old sealant I can tell you without a doubt that it's a giant pain. You'll want to pick up some composite trim tools # PT73HJ to pry the sealant off of the roof membrane. You'll take the flat end of one of the tools and scrape towards the skylight being careful not to pull on the roof membrane and tear it. This will take a bunch of time and patience. I typically press up against the sealant and try to rock the tool side to side to help cut through...
    view full answer...
  • Roof Sealant For TPO Roof
    Alpha # AL28KV (1010) is a non-sag sealant good for verticle surfaces, like sidewalls and end rails. Alpha # AL98KV (1021) is a self leveling sealant good for flat horizontal surfaces. Good around skylights and vents. Alpha # AL45KV (5121) is also self leveling, but in a gray color. Any of these can be used on your TPO roof.
    view full answer...

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Info for this part was:

Employee Amanda M
Edited by:
Amanda M
Employee Halie H
Written by:
Halie H
Employee Michael B
Installed by:
Michael B

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