---
product_id: 353356675
title: "501LSD-1 HAPS-Free Self-Leveling Lap Sealant for horizontal surfaces - 10.3 Oz, Dove (Bright White), Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application"
brand: "dicor"
price: "R937"
currency: ZAR
in_stock: true
reviews_count: 5
category: "Dicor"
url: https://www.desertcart.co.za/products/353356675-501lsd-1-haps-free-self-leveling-lap-sealant-for-horizontal
store_origin: ZA
region: South Africa
---

# Universal adhesion across 7+ roofing materials Sun-ray stabilized for UV resistance Self-leveling for flawless horizontal application 501LSD-1 HAPS-Free Self-Leveling Lap Sealant for horizontal surfaces - 10.3 Oz, Dove (Bright White), Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application

**Brand:** dicor
**Price:** R937
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal smart, seal sleek — protect your RV like a pro!

## Quick Answers

- **What is this?** 501LSD-1 HAPS-Free Self-Leveling Lap Sealant for horizontal surfaces - 10.3 Oz, Dove (Bright White), Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application by dicor
- **How much does it cost?** R937 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/353356675-501lsd-1-haps-free-self-leveling-lap-sealant-for-horizontal)

## 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

- • **HAPS-Free & Safe:** Formulated without hazardous air pollutants, making it a responsible choice for you and the environment.
- • **Bright White Aesthetic:** Dove bright white hue enhances your RV’s curb appeal while maintaining a clean, modern look.
- • **Effortless Application:** Self-leveling technology ensures a smooth, professional finish on horizontal surfaces every time—no mess, no stress.
- • **UV-Protected Durability:** Keeps your RV roof pristine with sun-ray stabilized formula that resists discoloration and spoiling.
- • **Versatile Compatibility:** Seamlessly bonds with EPDM, TPO, PVC membranes plus aluminum, wood, vinyl, and more for all-around protection.

## Overview

Dicor 501LSD-1 is a 10.3 oz HAPS-free, self-leveling lap sealant designed for horizontal RV roofing surfaces. Its sun-ray stabilized bright white formula prevents discoloration while providing superior adhesion to EPDM, TPO, PVC membranes, and multiple other materials. Ideal for maintenance and repair, it ensures a watertight, flexible seal that keeps your RV roof looking sharp and performing flawlessly.

## Description

Dicor’s Self-Leveling Lap Sealant creates a watertight seal along a roof's edges, air vents, vent pipes, and screw heads. This lap sealant is a versatile sealant formulated for EPDM roofing but also compatible with most other roofing material, including Dicor DiFlex II, Tufflex PVC, and BriTEK TPO roofing. It offers excellent adhesion to aluminum, mortar, wood, vinyl, galvanized metal and concrete. Continuously seals and remains flexible. Color matched, our lap sealants are sun-ray stabilized to avoid discoloration and spoiling and will not stain or discolor any material to which it is applied. HAPS-free.

Review: We used this to see all the roof on our pop-up camper. It's a great product, but it must be done yearly especially if you store your camper outside. I used it to seal a few cracks, didn't work that great but it was worth a try and it holds up quite well otherwise.
Review: Great product and smooths out nice and flat. When they say self levelling they mean it. Don’t try to use on anything vertical. Used with dicor roof repair tape and then redid as many things on the roof that I could with what I had left, wish I had bought a other tube. I’ve heard mixed thoughts on removing old sealant before applying new vs just cover the old stuff. Well my old stuff was in good shape except the expected weather checking and cracks so I just went over the old stuff to maintain water integrity. It went over the old just fine and adhered well so far as I can tell. It smoothed the sealant our like new and removed the water traps. If I had a leak I would probably remove the old sealant and start from new but for touch ups, like I said, buy lots!

## Features

- RV ROOFING USE: Lap sealant is sun-ray stabilized to avoid spoiling and discoloration; Plus, it will not stain or discolor any roofing material to which it is applied
- COLOR: Dove bright white hue for stylish and beautiful RV roof
- EASY TO USE: Self-leveling for smooth application to RV roofing on horizontal surfaces
- SIZE: 10.3 fl. oz. tubes; Pack of 25
- COMPATIBILITY: Works with EPDM, TPO and PVC membranes, it adheres firmly to aluminum, mortar, wood, vinyl, galvanized metal, fiberglass, and concrete

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002UC6T74 |
| Best Sellers Rank | #87,948 in Automotive ( See Top 100 in Automotive ) #23 in RV Cleaning, Storage & Maintenance |
| Brand | Dicor |
| Customer Reviews | 4.7 4.7 out of 5 stars (707) |
| Date First Available | 14 August 2012 |
| Item Weight | 272 g |
| Item model number | 501LSD-1 |
| Manufacturer | Dicor |
| Manufacturer Part Number | 501LSD-1 |
| Model | 501LSD-1 |
| Product Dimensions | 5.08 x 1.52 x 27.94 cm; 272.16 g |

## Product Details

- **Brand:** Dicor
- **Item dimensions L x W x H:** 5.1 x 1.5 x 27.9 centimeters
- **Item weight:** 0.6 Pounds
- **Material:** Silicone
- **Style:** Self-Leveling

## Images

![501LSD-1 HAPS-Free Self-Leveling Lap Sealant for horizontal surfaces - 10.3 Oz, Dove (Bright White), Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application - Image 1](https://m.media-amazon.com/images/I/71F36C45CVL.jpg)

## Questions & Answers

**Q: Can this be used to seal a seam on rubber roofing?**
A: Yes you can,  Its self leveling so that helps a lot

**Q: Can this be used on rubber RV roofs?**
A: Yes. I used it last year for a vent replacement and no problems.

**Q: What is the difference between white and dove bright white?**
A: The Kelvin number indicates the whiteness with 5700 being the most brilliant and 2700 being a warm white.  So the range in between indicates the brightness.  Check the Kelvin # on the description.

**Q: Is there a recommended caulk gun to use with this?**
A: No. Any calk gun for that size tube will work.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***A on 11 November 2024*

We used this to see all the roof on our pop-up camper. It's a great product, but it must be done yearly especially if you store your camper outside. I used it to seal a few cracks, didn't work that great but it was worth a try and it holds up quite well otherwise.

### ⭐⭐⭐⭐⭐ Review
*by C***B on 13 August 2019*

Great product and smooths out nice and flat. When they say self levelling they mean it. Don’t try to use on anything vertical. Used with dicor roof repair tape and then redid as many things on the roof that I could with what I had left, wish I had bought a other tube. I’ve heard mixed thoughts on removing old sealant before applying new vs just cover the old stuff. Well my old stuff was in good shape except the expected weather checking and cracks so I just went over the old stuff to maintain water integrity. It went over the old just fine and adhered well so far as I can tell. It smoothed the sealant our like new and removed the water traps. If I had a leak I would probably remove the old sealant and start from new but for touch ups, like I said, buy lots!

### ⭐⭐⭐⭐⭐ Review
*by B***O on 5 November 2021*

Do a small trial joint and you will see the "flow" or "settle" rate work. When you work with this often, as I have, you will be pleased with adhesion, finish and how strong and flexible a repair or new seal you get. Don't waste time on hardware store products. Don't risk your RV roof integrity. This is what is required for RV repair and is worth the money.

## Frequently Bought Together

- Dicor 501LSD-1 HAPS-Free Self-Leveling Lap Sealant for horizontal surfaces - 10.3 Oz, Dove (Bright White), 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

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**Shop now:** [https://www.desertcart.co.za/products/353356675-501lsd-1-haps-free-self-leveling-lap-sealant-for-horizontal](https://www.desertcart.co.za/products/353356675-501lsd-1-haps-free-self-leveling-lap-sealant-for-horizontal)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-20*