---
product_id: 7387397
title: "- 551LSW-1 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, White, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application"
brand: "dicor"
price: "VT8721"
currency: VUV
in_stock: true
reviews_count: 8
category: "Dicor"
url: https://www.desertcart.vu/products/7387397-551lsw-1-haps-free-non-leveling-lap-sealant-10-3
store_origin: VU
region: Vanuatu
---

# 100% waterproof seal Sun-ray stabilized for UV resistance Versatile adhesion on 7+ materials - 551LSW-1 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, White, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application

**Brand:** dicor
**Price:** VT8721
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal smart, stay leak-free — the ultimate RV roof armor!

## Quick Answers

- **What is this?** - 551LSW-1 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, White, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application by dicor
- **How much does it cost?** VT8721 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/7387397-551lsw-1-haps-free-non-leveling-lap-sealant-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

- • **UV-Proof Durability:** Sun-ray stabilized formula prevents discoloration and maintains pristine white finish season after season.
- • **Multi-Surface Mastery:** Bonds seamlessly to EPDM, PVC, aluminum, wood, vinyl, concrete, and more for all-around protection.
- • **Watertight Confidence:** Creates a flexible, non-sag seal that keeps your RV roof and vents 100% waterproof.
- • **Effortless Application:** Non-leveling, easy-to-use lap sealant that perfectly covers screws, vents, and tricky roof edges without mess.
- • **Trusted by Pros & Enthusiasts:** Top-ranked RV sealant with 4.7-star rating from over 23,000 users—join the community that won’t settle for less.

## Overview

Dicor 551LSW-1 is a premium 10.3 oz white lap sealant designed for RV roofing and maintenance. It offers superior waterproof sealing with flexible, non-sag performance and excellent adhesion across multiple roofing materials including EPDM, PVC, and metal. Sun-ray stabilized to resist UV damage and discoloration, this sealant ensures long-lasting protection and a clean, professional finish trusted by thousands of RV owners and professionals alike.

## Description

Dicor Corporation Part #551LSW Non-Sag White Lap SealantbrbrHelps create watertight seal along a roofs edges#44; air vents#44; vent pipes and screw heads. Dicor Products Lap Sealant is a versatile sealant formulated for EPDM roofing but also compatible with most other roofing material#44; including Dicor DiFlex IItrade; and BriTEKtrade; TPO roofing. It offers excellent adhesion to aluminum#44; mortar#44; wood#44; vinyl#44; galvanized metal and concrete. Package Quantity = 1

Review: Works well on trailer roofs - This is a good product. We have a lot of client's in a vacation park. Their park model trailers take a beating all winter and then get cooked in the sun all summer. This is the best sealant I've found for tpo and rubber roof that trailers have. It is easy to apply and makes a nice solid patch.
Review: The Only Lap Sealant I Use! - I have tried a couple of other brands of lap sealant, and the results were simply not good. I recently installed an additional solar panel on my RV. I used a cheaper brand to save a few dollars, huge mistake! So, I decided to order Dicor and used it to finish the project and cover the other brand. The Dicor flows smoothly, it adheres great and the leveling is superb. It makes the project looks so much more professional, and I trust that it will do its job to seal and protect from leaks, etc. No more trying other brands, Dicor is the only lap sealant I will use in the future.

## Features

- USE: This sealant helps create a watertight seal along a roof's edge, air vents, vent pipes, and screw heads
- COLOR: White hue for stylish and beautiful RV roof
- COMPATIBILITY: Formulated for EPDM roofing but also compatible with most other roofing material, including Dicor DiFlex II, Tufflex, PVC, and PriTEK TPO roofing
- LONG LASTING: sun-ray stabilized to avoid discoloration and spoiling and will not stain or discolor any material to which it is applied
- FEATURES: Offers excellent adhesion to aluminum, mortar, wood, vinyl, galvanized metal, and concrete; Continuously seals and remains flexible

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003YJLIW8 |
| Best Sellers Rank | #105 in Automotive ( See Top 100 in Automotive ) #1 in RV Sealants |
| Brand | Dicor |
| Brand Name | Dicor |
| Color | White |
| Compatible Material | Rubber, Epdm, Dicor Diflex Ii, Tufflex, Pvc, Pritek Tpo |
| Customer Reviews | 4.7 out of 5 stars 23,372 Reviews |
| Global Trade Identification Number | 00677917000661 |
| Included Components | Dicor Corporation 551Lsw-12 Edpm Lap Seal 10.3 Oz. Tube Wht |
| Item Dimensions | 11.25 x 2 x 2 inches |
| Item Form | Liquid |
| Item Type Name | Dicor Corporation 551Lsw-12 Edpm Lap Seal 10.3 Oz. Tube Wht |
| Item Weight | 14.4 ounces |
| Item dimensions L x W x H | 11.25 x 2 x 2 inches |
| Manufacturer | Dicor |
| Material | Rubber |
| Material Type | Rubber |
| Model | 551LSW1 |
| Number of Items | 1 |
| Part Number | 551LSW-1 |
| Style | Non-Leveling |
| Style Name | Non-Leveling |
| Surface Recommendation | Roof |
| UPC | 677917000661 |
| Unit Count | 10.3 Fluid Ounces |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Dicor
- **Item Weight:** 0.9 Pounds
- **Item dimensions L x W x H:** 11.25 x 2 x 2 inches
- **Material:** Rubber
- **Style:** Non-Leveling

## Images

![- 551LSW-1 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, White, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application - Image 1](https://m.media-amazon.com/images/I/71XiBxLG7yL.jpg)
![- 551LSW-1 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, White, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application - Image 2](https://m.media-amazon.com/images/I/71NaCa0MezL.jpg)
![- 551LSW-1 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, White, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application - Image 3](https://m.media-amazon.com/images/I/71ji4swv9DL.jpg)
![- 551LSW-1 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, White, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application - Image 4](https://m.media-amazon.com/images/I/81ZD9X38+eL.jpg)
![- 551LSW-1 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, White, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application - Image 5](https://m.media-amazon.com/images/I/81uMLIo9lIL.jpg)

## Available Options

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

## Questions & Answers

**Q: What is the difference between the 501 and 551 versions of this sealant?**
A: Both are non-sag, but 501 is for horizontal surfaces and 551 is for vertical surfaces. Not sure what the difference is. The last letter indicates the color. (W=white)

**Q: can this caulk tube of dico r be reseal ed after opening, to be used at a later date or will it just dry out.?**
A: There is a product out there called Little Red Cap (https://www.amazon.com/Little-Red-Cap-Canister/dp/B076CRG6WN/ref=sr_1_3?crid=26RMJPU78XU9Y&keywords=little+red+cap+caulking+tube+covers&qid=1568080303&s=automotive&sprefix=little+red+cap+c%2Cautomotive%2C178&sr=1-3-catcorr). I have had tubes covered for many months and they don't dry out.  I have found this at local hardware stores as well.

**Q: can i use this to seal corner trim on rv or will it sag to much**
A: Non sagging like the label says.

**Q: Do you have it in black?**
A: Yes, we do.  The part number is 551LSB-1

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well on trailer roofs
*by J***I on April 15, 2026*

This is a good product. We have a lot of client's in a vacation park. Their park model trailers take a beating all winter and then get cooked in the sun all summer. This is the best sealant I've found for tpo and rubber roof that trailers have. It is easy to apply and makes a nice solid patch.

### ⭐⭐⭐⭐⭐ The Only Lap Sealant I Use!
*by D***W on April 22, 2026*

I have tried a couple of other brands of lap sealant, and the results were simply not good. I recently installed an additional solar panel on my RV. I used a cheaper brand to save a few dollars, huge mistake! So, I decided to order Dicor and used it to finish the project and cover the other brand. The Dicor flows smoothly, it adheres great and the leveling is superb. It makes the project looks so much more professional, and I trust that it will do its job to seal and protect from leaks, etc. No more trying other brands, Dicor is the only lap sealant I will use in the future.

### ⭐⭐⭐⭐⭐ Great product
*by E***Y on March 27, 2026*

Works excellent for rv roof. Levels nicely and creates a flexible water tight seal perfect for covering screws and going around objects like the antenna and satellite or anything else that would make using sealing tape a pain in the rear. Have used it many times and will continue to use it when needed.

## Frequently Bought Together

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

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**Shop now:** [https://www.desertcart.vu/products/7387397-551lsw-1-haps-free-non-leveling-lap-sealant-10-3](https://www.desertcart.vu/products/7387397-551lsw-1-haps-free-non-leveling-lap-sealant-10-3)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-08*