---
product_id: 7387397
title: "Dicor 551LSW-1 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, White, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application"
brand: "dicor"
price: "R677"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Dicor"
url: https://www.desertcart.co.za/products/7387397-dicor-551lsw-1-haps-free-non-leveling-lap-sealant-10
store_origin: ZA
region: South Africa
---

# 10.3 oz waterproof sealant Sun-ray stabilized for UV resistance Adheres to 6+ roofing & building materials Dicor 551LSW-1 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, White, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application

**Brand:** dicor
**Price:** R677
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal smart, stay leak-free — the pro’s choice for RV roof care!

## Quick Answers

- **What is this?** Dicor 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?** R677 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/7387397-dicor-551lsw-1-haps-free-non-leveling-lap-sealant-10)

## 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

- • **Flexible & Strong:** Remains flexible after curing to withstand expansion and contraction without cracking.
- • **UV-Proof Longevity:** Sun-ray stabilized formula resists discoloration and degradation under harsh sunlight.
- • **Clean, Stylish Finish:** Bright white color enhances your RV’s roof aesthetics while sealing with precision.
- • **Watertight Confidence:** Creates a durable, waterproof seal on RV roofs and vents to keep leaks at bay.
- • **Versatile Compatibility:** Perfectly engineered for EPDM, PVC, TPO, and more—one sealant for multiple roofing types.

## Overview

Dicor 551LSW-1 is a premium 10.3 oz white lap sealant designed for RV roofing and maintenance. It delivers a watertight, flexible seal compatible with EPDM, PVC, TPO, and other roofing materials. Sun-ray stabilized for long-lasting UV resistance, it adheres strongly to multiple surfaces including metal, wood, and concrete, ensuring durable protection without discoloration.

## 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: Quality product - Works well. Takes a complete tube to do one vent. Apply up the side of the vent a little so you don’t trap water around the vent flashing.
Review: Roof lap sealant - Works great on my recreational vehicle. Make sure and follow the instructions, because it will take a little bit for the sealant to level out to it's final product.

## 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 | #213 in Automotive ( See Top 100 in Automotive ) #1 in RV Sealants |
| Brand | Dicor |
| Color | White |
| Date First Available | August 6, 2010 |
| Global Trade Identification Number | 00677917000661 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 14.4 ounces |
| Item dimensions L x W x H | 11.25 x 2 x 2 inches |
| Item model number | 551LSW1 |
| Manufacturer | Dicor |
| Material | Rubber |
| Number of Items | 1 |
| Product Dimensions | 11.25 x 2 x 2 inches |
| Style | 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

![Dicor 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)
![Dicor 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)
![Dicor 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)
![Dicor 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)
![Dicor 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

### ⭐⭐⭐⭐⭐ Quality product
*by R***R on January 28, 2026*

Works well. Takes a complete tube to do one vent. Apply up the side of the vent a little so you don’t trap water around the vent flashing.

### ⭐⭐⭐⭐⭐ Roof lap sealant
*by K***E on January 10, 2026*

Works great on my recreational vehicle. Make sure and follow the instructions, because it will take a little bit for the sealant to level out to it's final product.

### ⭐⭐⭐⭐⭐ Worked great!
*by K***I on January 14, 2026*

I used this when installing a Starlink on the roof of our motorhome. The cable was laid flat for approximately 25' from the entry point to the antenna. I then covered the cable with spills of this sealant at equal intervals. The sealant settled over the cable and the roof material and hardened. This effectively and confidently attached the cable to the roof without needing to use hardware and penetrate the roof surface.

## 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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---

*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-23*