---
product_id: 285203191
title: "Dicor 551LST-1 HAPS-Free Non-Leveling Lap Sealant - 10.3 Oz, Tan, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application"
brand: "dicor"
price: "¥8640"
currency: JPY
in_stock: true
reviews_count: 5
category: "Dicor"
url: https://www.desertcart.jp/products/285203191-dicor-551lst-1-haps-free-non-leveling-lap-sealant-10
store_origin: JP
region: Japan
---

# Sun-ray stabilized for long-lasting color Watertight seal for ultimate protection Superior adhesion on diverse materials Dicor 551LST-1 HAPS-Free Non-Leveling Lap Sealant - 10.3 Oz, Tan, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application

**Brand:** dicor
**Price:** ¥8640
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Dicor 551LST-1 HAPS-Free Non-Leveling Lap Sealant - 10.3 Oz, Tan, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application by dicor
- **How much does it cost?** ¥8640 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/285203191-dicor-551lst-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 & Durable:** Remains flexible under stress, preventing cracks and leaks even on moving surfaces.
- • **Sun-Ray Stabilized:** Resists discoloration and staining, maintaining a sleek tan finish season after season.
- • **Multi-Surface Mastery:** Bonds effortlessly to aluminum, wood, vinyl, galvanized metal, concrete, and mortar for all-around reliability.
- • **Watertight Confidence:** Seals roof edges, vents, and screw heads to keep moisture out and your RV dry.
- • **Versatile Compatibility:** Formulated for EPDM and works seamlessly with PVC, TPO, and more—one sealant to rule them all.

## Overview

Dicor 551LST-1 Lap Sealant is a premium, tan-colored, sun-ray stabilized sealant designed for creating watertight seals on RV roofs and various roofing materials. It offers exceptional adhesion across multiple surfaces including EPDM, PVC, aluminum, and concrete, while maintaining flexibility and resisting discoloration. Trusted by RV enthusiasts for durable, maintenance-saving protection that keeps roofs leak-free and looking sharp.

## Description

This sealant helps create a watertight seal along a roof's edge, air vents, 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, including Dicor DiFlex II, Tufflex, PVC, and PriTEK 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 will not stain or discolor any material to which it is applied. The Dicor roofing Systems assures a watertight roof that is easy to maintain and saves energy through its heat reflecting characteristics.

Review: I put a StarLink on the roof of my RV. I used this to adhesively bond the mounting bracket to the StarLink and to the roof, as well as to hold the data cable down and seal the hole it routs through.... with the rain and traveling, I can attest that it worked out very well. Update... I have put on a out 10,000 miles now. Nice having full internet/wifi at 70 mph! Note that the only penetration in the roof is a 5/8" hole for the cable. The StarLink is mounted facing forward so at high speed it tends to push the panel into the roof rather than pull it off. I used this as the adhesive to the roof (cleaned the roof with rubbing alcohol first). Got a 3rd party mount, mounted that to done galvanized building plates from ZHonedepot, and bonded that to the roof. I also took a 1" piece of cloth soaked in this, and forced it as a seal around the cable/penetration so that half the cloth is inside and half outside. I have had no leaks, and the panel has not come loose. This is great stuff.
Review: RV roof sealer...work good to install my solar panel ..sealed all the screws .

## Features

- USE: This sealant helps create a watertight seal along a roof's edge, air vents, vent pipes, and screw heads
- COLOR: Tan 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 | B00HJ6Y0WM |
| Brand | Dicor |
| Customer Reviews | 4.7 4.7 out of 5 stars (777) |
| Date First Available | 24 June 2014 |
| Item Weight | 272 g |
| Item model number | 551LST-1 |
| Manufacturer | DICOR CORPORATION |
| Manufacturer Part Number | 551LST-1 |
| Model | 551LST-1 |
| Product Dimensions | 29.21 x 1.52 x 0.51 cm; 272.16 g |

## Product Details

- **Brand:** Dicor
- **Item dimensions L x W x H:** 29.2 x 1.5 x 0.5 centimeters
- **Item weight:** 272 g
- **Material:** Synthetic Rubber
- **Style:** Non-Leveling

## Images

![Dicor 551LST-1 HAPS-Free Non-Leveling Lap Sealant - 10.3 Oz, Tan, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application - Image 1](https://m.media-amazon.com/images/I/710gB8xoR4L.jpg)
![Dicor 551LST-1 HAPS-Free Non-Leveling Lap Sealant - 10.3 Oz, Tan, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application - Image 2](https://m.media-amazon.com/images/I/71A9yJ-8IcL.jpg)
![Dicor 551LST-1 HAPS-Free Non-Leveling Lap Sealant - 10.3 Oz, Tan, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application - Image 3](https://m.media-amazon.com/images/I/71JcVKkFXdL.jpg)
![Dicor 551LST-1 HAPS-Free Non-Leveling Lap Sealant - 10.3 Oz, Tan, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application - Image 4](https://m.media-amazon.com/images/I/71KA2810TWL.jpg)
![Dicor 551LST-1 HAPS-Free Non-Leveling Lap Sealant - 10.3 Oz, Tan, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application - Image 5](https://m.media-amazon.com/images/I/71yhVdrTWYL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***N on 6 January 2025*

I put a StarLink on the roof of my RV. I used this to adhesively bond the mounting bracket to the StarLink and to the roof, as well as to hold the data cable down and seal the hole it routs through.... with the rain and traveling, I can attest that it worked out very well. Update... I have put on a out 10,000 miles now. Nice having full internet/wifi at 70 mph! Note that the only penetration in the roof is a 5/8" hole for the cable. The StarLink is mounted facing forward so at high speed it tends to push the panel into the roof rather than pull it off. I used this as the adhesive to the roof (cleaned the roof with rubbing alcohol first). Got a 3rd party mount, mounted that to done galvanized building plates from ZHonedepot, and bonded that to the roof. I also took a 1" piece of cloth soaked in this, and forced it as a seal around the cable/penetration so that half the cloth is inside and half outside. I have had no leaks, and the panel has not come loose. This is great stuff.

### ⭐⭐⭐⭐⭐ Review
*by F***K on 7 May 2025*

RV roof sealer...work good to install my solar panel ..sealed all the screws .

### ⭐⭐⭐⭐⭐ Review
*by R***R on 10 September 2021*

Très bon produit et bon service

## Frequently Bought Together

- Dicor 551LST-1 HAPS-Free Non-Leveling Lap Sealant - 10.3 Oz, Tan, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application
- Dicor 501LSW-1 Self-Leveling Lap Sealant, 4 Pack
- Dicor 351CSCL-1 HAPS-Free Cap Sealant - Clear for RV Window and Door Maintenance

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**Shop now:** [https://www.desertcart.jp/products/285203191-dicor-551lst-1-haps-free-non-leveling-lap-sealant-10](https://www.desertcart.jp/products/285203191-dicor-551lst-1-haps-free-non-leveling-lap-sealant-10)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-11*