DOWNLOAD THE APP
Customer Services
Copyright © 2025 Desertcart Holdings Limited
DOWNLOAD THE APP
🖤 Seal your RV in style — fast, flawless, and future-friendly!
Dicor 351CSB-1 HAPS-Free Cap Sealant is a premium black, paintable sealant designed for RV window, door, and joint maintenance. Its fast-drying, non-sag formula offers superior crack resistance and weatherproof durability across multiple surfaces including metal, wood, glass, and fiberglass. Eco-friendly and easy to apply, it ensures a sleek, professional finish that protects your RV on every journey.
| ASIN | B081DQ5D34 |
| Best Sellers Rank | #3,367 in Automotive ( See Top 100 in Automotive ) #5 in RV Sealants |
| Brand | Dicor |
| Color | Black |
| Date First Available | November 12, 2019 |
| Item Form | Liquid |
| Item Weight | 12 ounces |
| Item dimensions L x W x H | 11.5 x 2 x 2 inches |
| Item model number | 351CSB-1 |
| Manufacturer | Dicor |
| Material | Plastic |
| Number of Items | 1 |
| Product Dimensions | 11.5 x 2 x 2 inches |
| Style | Black Cap Sealant |
| Surface Recommendation | Window |
| UPC | 677917010967 |
| Unit Count | 300 Milliliters |
| Water Resistance Level | Water Resistant |
L**E
Excellent RV Sealant – Crack Resistant, Smooth Finish & Great Value!
The Dicor 351CSCL-1 HAPS-Free Cap Sealant is perfect for RV window and door maintenance! The clear formula gives a clean, professional look, and it levels beautifully for a smooth finish. It offers outstanding sealability, crack resistance, and long-lasting durability—even in harsh weather. Easy to apply and dries evenly without mess. Great quality and value for money—a must-have for RV owners who want reliable waterproofing and a polished appearance. Highly recommend—I’ll buy again!
B**Y
Works great
Works as intended, easy to spread evenly. Does not run.
K**R
Keep your trailer watertight
I bought the Dicor brand, because it was the most recommended on the internet and when my local RV dealer wanted hundreds of dollars to reseal my trailer, this was the brand they were going to use. Instead, I bought it off Amazon for half the price they wanted for a tube at the shop, and did it myself. The sealant goes on very smooth and even. It’s clear, so it dries with a shine, but it’s not too noticeable. It is very gooey, so I brought a few rags and some water to clean and run off, as it can get pretty messy if you’re not careful. I have. 22’ trailer and it took me 2 tubes to seal around the windows, door, and base of the rv. The tube goes a long way, but I was very liberal applying it. Keeping the rv watertight is the most important thing you can do to preserve your trailer, so it’s well worth the cost and I wouldn’t skimp on a lesser brand.
D**.
Good sealant
Used on camper and seems to be good quality and working
R**R
Great stuff
Great stuff but tape off your work and wear gloves!
A**R
Works as intended and easy to apply.
Works as intended. Easy to apply. Fix my issues.
E**C
Really good stuff!
This stuff is solid! I bought an older camper that needed some work and this stuff has helped me seal up all kinds of problems I have come across. I plan to keep a spare in my camper whenever I travel!
R**N
Good product
Have used Dicor products for years and they have always performed well.
S**A
Best self leveling sealant for camper roof vents applications. You get what one pays for it.
J**T
V Good products
J**K
très bien
M**E
This was perfect for our fifth wheel. Very good sealer
D**N
Good product and quick delivery
Trustpilot
1 month ago
4 days ago