Your cart is empty.
Your cart is empty.When it comes to repairing and maintaining your RV's roof, windows, vents or doors, look no further than Alpha Systems. Exclusively distributed by Lippert™, the Alpha lineup of adhesives, sealants, tapes and roofing kits are specifically formulated to work together as a holistic system for your RV. Our 5121 ALPHATHANE self-leveling sealant is a must-have when repairing flat surfaces like your RV's roof. This is a high-strength, self-leveling, sealant that can withstand the wear and tear of outdoor elements. It exhibits excellent adhesion to wood, metal, glass, and most other common construction materials. Plus, once cured, it doesn’t shrink, and it can handle the shock and vibration caused by travel.The 5121 Alphathane self-leveling sealant comes in a single tube and is available in white, beige, gray or almond color options.With Alpha Systems, you get a holistic system of premium RV repair and maintenance products all designed to work together. From our self-leveling sealants to our butyl tapes, each Alpha product is carefully formulated in our labs and tested for superior performance. Our standard is to never settle for status quo. We’re constantly raising the bar, innovating and improving our family products, in every detail. That’s why RV manufacturers, dealerships and service technicians throughout the industry trust our name when it comes to giving their customer a product they can rely on. And better yet, all of our high-quality sealants, adhesives and tapes are made in the heart of RV country, right here in the USA. Alpha Systems, trusted by the pros, formulated for your RV.Whether you’re on the road or on the water, Lippert supplies a broad array of premium RV, towing, and marine products designed to enhance all of your recreational pursuits. Our team is committed to always thinking about your next journey — pushing the possibilities of our products and services, all to better your time spent outdoors, whenever, wherever, for years to come.
Michael w.
Reviewed in the United States on February 2, 2025
This is good stuff. I went to a private RV guy that repairs RVs and he sold me a tube of this and he told me he buys this off of Amazon. I needed another couple tubes so I went to Amazon and bought it. This stuff is amazing you put this on and let it set and it just levels out and seals so nice, I highly recommend this stuff. I wouldn’t buy anything else for my RV roof.
CLP
Reviewed in the United States on January 18, 2025
I would purchase Dicor brand. I have used this and Dicor and the Dicor is truly self leveling this is not. I used this in warm weather and it only partially leveled and left several lumps. I have used Dicor for about 7 years and never had an issue.
Dave
Reviewed in the United States on June 26, 2024
At least let us know up front there won't be any nozzles shipped with the tubes. Come on!
Troppobird
Reviewed in the United States on February 24, 2024
Hard to apply without nozzles!
Dave Pass.
Reviewed in the United States on July 30, 2023
A+++
Kimberly Butler
Reviewed in the United States on October 9, 2023
Good product, used on Forrest river roof. Has discovered alot in the past 6 months though.
Dave
Reviewed in the United States on September 6, 2021
I never use the entire contents at once so I especially like the hard plastic tube. If it gets knocked around between uses it holds it's shape, unlike other brands with with a cardboard tube.
Paul
Reviewed in the United States on March 19, 2021
good stuff to spread and control somewhat. Setup quickly enough in the FL sun.
Recommended Products
$36.99
$ 16 .99 $16.99
$43.68
$ 19 .99 $19.99
$39.95
$ 16 .99 $16.99