---
product_id: 313401850
title: "Dicor 351CSB-1 Cap Sealant, Black, RV Window & Door Maintenance"
brand: "dicor"
price: "$24.63"
currency: USD
in_stock: true
reviews_count: 13
category: "Dicor"
url: https://www.desertcart.us/products/313401850-dicor-351csb-1-cap-sealant-black-rv-window-and-door
store_origin: US
region: United States of America
---

# Superior water resistance Fast-drying formula Paintable black finish Dicor 351CSB-1 Cap Sealant, Black, RV Window & Door Maintenance

**Brand:** dicor
**Price:** $24.63
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal it like a pro, travel worry-free!

## Quick Answers

- **What is this?** Dicor 351CSB-1 Cap Sealant, Black, RV Window & Door Maintenance by dicor
- **How much does it cost?** $24.63 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/313401850-dicor-351csb-1-cap-sealant-black-rv-window-and-door)

## Best For

- dicor enthusiasts

## Why This Product

- Trusted dicor brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Weatherproof Shield:** Sun-ray and water defiant to protect your RV wherever the road takes you
- • **Sleek Black Aesthetic:** Blends seamlessly with your RV’s exterior for a polished, professional look
- • **Effortless Application:** Quick, smooth gunning for DIY pros and weekend warriors alike
- • **Universal Compatibility:** Seals metal, wood, glass, rubber & more—one tube, endless fixes
- • **Trusted by the Community:** Top-rated with 4.6 stars and #7 in RV Sealants—join thousands who swear by Dicor

## Overview

Dicor 351CSB-1 Black Cap Sealant is a 10.3 oz fast-drying, paintable sealant designed for RV window, door, and compartment maintenance. Compatible with a wide range of materials including metal, wood, glass, and rubber, it offers superior water and sun resistance. Highly rated and easy to apply, it ensures a durable, sleek finish that keeps your RV watertight and road-ready.

## Description

This paintable cap sealant from Dicor is a HAPS-free, non-sag sealant excellent for sealing around perimeters of windows, entry doors, compartment doors and joints made of bare or repainted materials. As this RV maintenance product is sun-ray and water Defiant, it is ideal for use on RVs no matter where they travel. The fast-drying sealant is simple to use with easy gunning and paintable texture.

Review: 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 desertcart 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.
Review: Works great! - Maybe someday I'll try Forever sealant, but for now, this works perfectly.

## Features

- EASY TO APPLY: Designed for quick and simple installation with fast drying application
- SIZE: 10.3 oz. tube
- USE: Paintable sealant helps seal perimeters of RV windows, entry doors, compartment doors, and joints
- COLOR: Black hue for an attractive aesthetic for your RV
- COMPATIBILITY: Apply to metal, wood, particleboard, plywood, rubber, concrete, masonrym, glass, thermoplastics, fiberglass, and other fiber reinforced plastic; Works with all Dicor sealants, tapes, and adhesive

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B081DQ5D34 |
| Best Sellers Rank | #2,124 in Automotive ( See Top 100 in Automotive ) #7 in RV Sealants |
| Brand | Dicor |
| Brand Name | Dicor |
| Color | Black |
| Compatible Material | Engineered Wood, Glass, Metal, Plastic, Rubber |
| Customer Reviews | 4.6 out of 5 stars 1,689 Reviews |
| Included Components | Dicor 351Csb-1 Black Cap Sealant 10 Oz Tube |
| Item Dimensions | 11.5 x 2 x 2 inches |
| Item Form | Liquid |
| Item Highlight | HAPS-free; paintable; seals window/door/compartment perimeters & joints; fast drying; works with all Dicor sealants |
| Item Type Name | Dicor 351Csb-1 Black Cap Sealant 10 Oz Tube |
| Item Weight | 12 ounces |
| Item dimensions L x W x H | 11.5 x 2 x 2 inches |
| Manufacturer | Dicor |
| Material | Plastic |
| Material Type | Plastic |
| Model | 351CSB-1 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 351CSB-1 |
| Style | Black Cap Sealant |
| Style Name | Black Cap Sealant |
| Surface Recommendation | Window |
| UPC | 677917010967 |
| Unit Count | 10.3 Fluid Ounces |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Dicor
- **Item Weight:** 12 ounces
- **Item dimensions L x W x H:** 11.5 x 2 x 2 inches
- **Material:** Plastic
- **Style:** Black Cap Sealant

## Images

![Dicor 351CSB-1 Cap Sealant, Black, RV Window & Door Maintenance - Image 1](https://m.media-amazon.com/images/I/71rrIN0AR7L.jpg)
![Dicor 351CSB-1 Cap Sealant, Black, RV Window & Door Maintenance - Image 2](https://m.media-amazon.com/images/I/710eKkXsR5L.jpg)
![Dicor 351CSB-1 Cap Sealant, Black, RV Window & Door Maintenance - Image 3](https://m.media-amazon.com/images/I/71tZVQ6e5LL.jpg)
![Dicor 351CSB-1 Cap Sealant, Black, RV Window & Door Maintenance - Image 4](https://m.media-amazon.com/images/I/71w9z7GQc6L.jpg)
![Dicor 351CSB-1 Cap Sealant, Black, RV Window & Door Maintenance - Image 5](https://m.media-amazon.com/images/I/81uMLIo9lIL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Keep your trailer watertight
*by K***R on August 7, 2025*

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.

### ⭐⭐⭐⭐⭐ Works great!
*by M***. on September 1, 2026*

Maybe someday I'll try Forever sealant, but for now, this works perfectly.

### ⭐⭐⭐⭐⭐ Product is as advertised
*by S***. on June 7, 2026*

I found the quality of this product excellent compared to the other major brand tried. Both adhesive and weathering properties were great. Applied it several months ago and have not noticed any shrinkage or wear and applied area is constantly in direct sunlight.

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---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-06*