--- product_id: 92525113 title: "Dicor 551LSB-1 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, Black, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application" brand: "dicor" price: "R743" currency: ZAR in_stock: true reviews_count: 13 url: https://www.desertcart.co.za/products/92525113-dicor-551lsb-1-haps-free-non-leveling-lap-sealant-10 store_origin: ZA region: South Africa --- # Strong adhesion on 7+ surfaces Multi-membrane compatibility HAPS-Free, eco-safe formula Dicor 551LSB-1 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, Black, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application **Brand:** dicor **Price:** R743 **Availability:** βœ… In Stock ## Summary > πŸ› οΈ Seal it like a pro, protect like a boss! ## Quick Answers - **What is this?** Dicor 551LSB-1 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, Black, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application by dicor - **How much does it cost?** R743 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/92525113-dicor-551lsb-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 - β€’ **Surface Mastery:** Bonds powerfully to aluminum, wood, vinyl, fiberglass, concrete, and galvanized metal for durable protection. - β€’ **Eco-Smart & Safe:** HAPS-free formula ensures a safer workspace and environmentally responsible maintenance. - β€’ **Versatile Roof Armor:** Works seamlessly with EPDM, TPO, PVC, and moreβ€”one sealant to rule all RV roofs. - β€’ **Leak-Proof Confidence:** Secure secondary seal for your RV roof edges and rails, blocking leaks before they start. - β€’ **Trusted by Pros & Enthusiasts:** Top-rated and #1 in RV sealants, the go-to choice for lasting repairs and upgrades. ## Overview Dicor 551LSB-1 is a premium, HAPS-free non-leveling lap sealant designed for RV roofing maintenance and repair. Compatible with multiple membrane types and a wide range of surfaces, it delivers strong, flexible adhesion that prevents leaks and withstands harsh weather. Trusted by professionals and RV enthusiasts alike, this 10.3 oz black silicone gel tube offers eco-friendly, durable protection to keep your RV roof secure season after season. ## 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 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 - 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 | #169 in Automotive ( See Top 100 in Automotive ) #1 in RV Sealants | | Brand | Dicor | | Brand Name | Dicor | | Color | Black | | Compatible Material | Metal | | Customer Reviews | 4.7 out of 5 stars 23,524 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 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 | 1.0 Count | | 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 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, Black, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application - Image 1](https://m.media-amazon.com/images/I/71tx68yjZVL.jpg) ![Dicor 551LSB-1 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, Black, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application - Image 2](https://m.media-amazon.com/images/I/71o7IcSFQdL.jpg) ![Dicor 551LSB-1 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, Black, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application - Image 3](https://m.media-amazon.com/images/I/714wfzkZYDL.jpg) ![Dicor 551LSB-1 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, Black, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application - Image 4](https://m.media-amazon.com/images/I/81fQ858fmvL.jpg) ![Dicor 551LSB-1 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, Black, 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. ## 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 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 --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/92525113-dicor-551lsb-1-haps-free-non-leveling-lap-sealant-10](https://www.desertcart.co.za/products/92525113-dicor-551lsb-1-haps-free-non-leveling-lap-sealant-10) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-06-25*