---
product_id: 92525113
title: "Dicor 551LSB-1 Non-Leveling Lap Sealant, Black, 10.3 Oz, RV Roofing"
brand: "dicor"
price: "S$22"
currency: SGD
in_stock: true
reviews_count: 13
category: "Dicor"
url: https://www.desertcart.sg/products/92525113-dicor-551lsb-1-non-leveling-lap-sealant-black-10-3
store_origin: SG
region: Singapore
---

# Water-Resistant Durability Multi-Membrane Compatible HAPS-Free Safety Seal Dicor 551LSB-1 Non-Leveling Lap Sealant, Black, 10.3 Oz, RV Roofing

**Brand:** dicor
**Price:** S$22
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal Smart, Travel Confident: The Ultimate RV Roof Armor

## Quick Answers

- **What is this?** Dicor 551LSB-1 Non-Leveling Lap Sealant, Black, 10.3 Oz, RV Roofing by dicor
- **How much does it cost?** S$22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/92525113-dicor-551lsb-1-non-leveling-lap-sealant-black-10-3)

## 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

- • **Eco-Smart Formula:** HAPS-free, prioritizing your health and the environment without compromising performance.
- • **Leak-Proof Confidence:** Secure secondary seal for RV roof edges and termination rails, preventing costly water damage.
- • **Flexible & Long-Lasting:** Non-leveling gel formula maintains flexibility and continuous protection under all weather conditions.
- • **Universal Compatibility:** Works seamlessly with EPDM, TPO, PVC membranes plus aluminum, wood, vinyl, and more for versatile application.
- • **Trusted by Pros & Enthusiasts:** Top-rated (#1 in RV Sealants) with 4.6 stars from over 6,300 users—join the community that demands the best.

## Overview

Dicor 551LSB-1 Non-Leveling Lap Sealant is a professional-grade, HAPS-free silicone gel designed for durable, water-resistant sealing on RV roofs. Compatible with multiple membrane types and a wide range of surfaces, it offers a trusted secondary barrier against leaks and weather damage, favored by RV pros and enthusiasts alike.

## Description

The Dicor 551LSB-1 Lap Sealant for RV Roofing is a reliable solution for protecting your RV's roof. Its formula maintains the roof's appearance. This HAPS-free sealant meets industry requirements for a safer work environment and offers continuous sealing while remaining flexible. With its self-leveling properties, it effectively averts leaks and water damage. Choose the Dicor 551LSB-1 for lasting roof protection for your RV.

Review: Works - Good sealant with no sag
Review: 5 Stars - This is one of those “buy it every year without even thinking about it” products—and for good reason. My boyfriend swears by this non-leveling sealant for the camper, and at this point I trust it purely based on his loyalty alone. If something keeps making it back into the cart year after year, you know it’s doing its job. We haven’t used this specific tube yet, but past experience says it holds up, does what it’s supposed to do, and saves us from bigger headaches down the road. Five stars for consistency, reliability, and for keeping the camper in one (non-leaky) pieve.

## Features

- SECURE SECONDARY SEAL: DICOR's HAPS-Free NON-Leveling Lap Sealant provides a secure secondary seal along your RV roof's edges and termination rails, ensuring protection against leaks and damage.
- MULTI-MEMBRANE COMPATIBILITY: This lap sealant is compatible with various RV roofing materials, including EPDM, TPO, and PVC membranes, offering versatility for different roof types.
- WIDE SURFACE ADHESION: With strong adhesion properties, it firmly bonds to surfaces such as aluminum, mortar, wood, vinyl, galvanized metal, fiberglass, and concrete, ensuring long-lasting sealing.
- IDEAL FOR AFTERMARKET USE: Designed for aftermarket applications, this lap sealant is trusted by RV enthusiasts and professionals alike, making it a popular choice in RV stores.
- HAPS-FREE FORMULA: DICOR's lap sealant features a HAPS-free formula, prioritizing safety and environmental considerations, ensuring a reliable and eco-friendly solution for RV roof maintenance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B019QGSE4C |
| Best Sellers Rank | #84 in Automotive ( See Top 100 in Automotive ) #1 in RV Sealants |
| Brand | Dicor |
| Brand Name | Dicor |
| Color | Black |
| Compatible Material | Metal |
| Customer Reviews | 4.6 out of 5 stars 6,307 Reviews |
| Global Trade Identification Number | 00677917009220 |
| Included Components | Dicor Corporation 551LSB-1 Edpm Lap Seal 10.3 Oz. Tube |
| Item Dimensions | 11.25 x 2 x 2 inches |
| Item Form | Gel |
| Item Highlight | HAPS-free; secondary seal for roof edges & termination rails; EPDM/TPO/PVC compatible; aftermarket use |
| Item Type Name | Dicor Corporation 551LSB-1 Edpm Lap Seal 10.3 Oz. Tube |
| Item Weight | 10.24 ounces |
| Item dimensions L x W x H | 11.25 x 2 x 2 inches |
| Manufacturer | Dicor |
| Material | Silicone |
| Material Type | Silicone |
| Model | 551LSB-1 |
| Number of Items | 1 |
| Part Number | 551LSB-1 |
| Style | Non-Leveling |
| Style Name | Non-Leveling |
| Surface Recommendation | Vent |
| UPC | 677917009220 |
| Unit Count | 1 Count |
| Warranty Description | Please contact us if you experience any issues within 30 days of receipt. |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Dicor
- **Item Weight:** 10.24 ounces
- **Item dimensions L x W x H:** 11.25 x 2 x 2 inches
- **Material:** Silicone
- **Style:** Non-Leveling

## Images

![Dicor 551LSB-1 Non-Leveling Lap Sealant, Black, 10.3 Oz, RV Roofing - Image 1](https://m.media-amazon.com/images/I/71tx68yjZVL.jpg)
![Dicor 551LSB-1 Non-Leveling Lap Sealant, Black, 10.3 Oz, RV Roofing - Image 2](https://m.media-amazon.com/images/I/71o7IcSFQdL.jpg)
![Dicor 551LSB-1 Non-Leveling Lap Sealant, Black, 10.3 Oz, RV Roofing - Image 3](https://m.media-amazon.com/images/I/714wfzkZYDL.jpg)
![Dicor 551LSB-1 Non-Leveling Lap Sealant, Black, 10.3 Oz, RV Roofing - Image 4](https://m.media-amazon.com/images/I/81fQ858fmvL.jpg)
![Dicor 551LSB-1 Non-Leveling Lap Sealant, Black, 10.3 Oz, RV Roofing - Image 5](https://m.media-amazon.com/images/I/81uMLIo9lIL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works
*by P***N on August 25, 2026*

Good sealant with no sag

### ⭐⭐⭐⭐⭐ 5 Stars
*by 1***2 on March 22, 2026*

This is one of those “buy it every year without even thinking about it” products—and for good reason. My boyfriend swears by this non-leveling sealant for the camper, and at this point I trust it purely based on his loyalty alone. If something keeps making it back into the cart year after year, you know it’s doing its job. We haven’t used this specific tube yet, but past experience says it holds up, does what it’s supposed to do, and saves us from bigger headaches down the road. Five stars for consistency, reliability, and for keeping the camper in one (non-leaky) pieve.

### ⭐⭐⭐⭐⭐ Great for Rv Roof
*by M***G on August 24, 2026*

Perfect Value fo Rv Roof Repair nothing better than dicor

## Frequently Bought Together

- Dicor 551LSB-1 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, Black, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application
- Dicor BT-1834-1 Butyl Seal Tape - 1/8" x 3/4" x 30' Repair Tape for RV, Trailer, Motorhome, Window, and Vent Sealing
- Dicor 501LSW-1 Self-Leveling Lap Sealant, 4 Pack

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**Shop now:** [https://www.desertcart.sg/products/92525113-dicor-551lsb-1-non-leveling-lap-sealant-black-10-3](https://www.desertcart.sg/products/92525113-dicor-551lsb-1-non-leveling-lap-sealant-black-10-3)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-09-14*