Dicor 551LSW bottle-pour showing easy application for watertight lap seal on RV roofs.
Dicor 551LSW screw-head-seal demonstrates durable seal around vent screws for long-lasting protection.
Dicor 551LSW roof-edge-application highlights seamless edge sealing for RV roof integrity.
Dicor 551LSW-white-color emphasizes clean, aesthetic finish while preserving flexibility and adhesion.
Dicor 551LSW-epdm-compatibility demonstrates versatile use across EPDM and common roofing materials.
Dicor 551LSW-flexible-adhesion ensures continuous seal that remains pliable under temperature changes.
Dicor 551LSW bottle-pour showing easy application for watertight lap seal on RV roofs.
Dicor 551LSW screw-head-seal demonstrates durable seal around vent screws for long-lasting protection.
Dicor 551LSW roof-edge-application highlights seamless edge sealing for RV roof integrity.
Dicor 551LSW-white-color emphasizes clean, aesthetic finish while preserving flexibility and adhesion.
Dicor 551LSW-epdm-compatibility demonstrates versatile use across EPDM and common roofing materials.
Dicor 551LSW-flexible-adhesion ensures continuous seal that remains pliable under temperature changes.

Dicor 551LSW HAPS-Free NON-Leveling Lap Sealant – 10.3 oz, White | RV Roof Sealant for EPDM & More

Overview Dicor 551LSW is a HAPS-Free NON-Leveling Lap Sealant designed for RV roofs. The white, non-sag formula...
Vendor: Dicor
Availability: In stock
£30.07
£30.07
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Dicor 551LSW bottle-pour showing easy application for watertight lap seal on RV roofs.

Dicor 551LSW HAPS-Free NON-Leveling Lap Sealant – 10.3 oz, White | RV Roof Sealant for EPDM & More

£30.07
Dicor 551LSW bottle-pour showing easy application for watertight lap seal on RV roofs.
Dicor 551LSW screw-head-seal demonstrates durable seal around vent screws for long-lasting protection.
Dicor 551LSW roof-edge-application highlights seamless edge sealing for RV roof integrity.
Dicor 551LSW-white-color emphasizes clean, aesthetic finish while preserving flexibility and adhesion.
Dicor 551LSW-epdm-compatibility demonstrates versatile use across EPDM and common roofing materials.
Dicor 551LSW-flexible-adhesion ensures continuous seal that remains pliable under temperature changes.

Dicor 551LSW HAPS-Free NON-Leveling Lap Sealant – 10.3 oz, White | RV Roof Sealant for EPDM & More

£30.07
Description
Description
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Overview

Dicor 551LSW is a HAPS-Free NON-Leveling Lap Sealant designed for RV roofs. The white, non-sag formula helps create a watertight seal along roof edges, air vents, vent pipes, and screw heads. While formulated with EPDM roofing in mind, it also works with most other roofing materials, including DiFlex II and TPO products. The sealant is designed to stay flexible and resist discoloration, making it a practical choice for maintenance or repair work on a variety of roof systems.

Why this sealant stands out

  • Excellent adhesion to aluminum, mortar, wood, vinyl, galvanized metal, and concrete, enabling a versatile seal across different substrate types.
  • White color offers a clean, aesthetically pleasing finish that blends with many RV roof styles.
  • Sun-ray stabilized formulation helps minimize color change and maintains appearance over time.
  • Compatibility with EPDM, as well as DiFlex II, TPO, PVC, and other common roofing materials, expanding potential uses.

Real-life use scenarios

  • Seal roof edges where the cap meets the RV, along air vents, vent pipes, and screw heads to help deter leaks.
  • Apply around fasteners and joints on EPDM or other roof surfaces to maintain a continuous, flexible seal.
  • Use in maintenance or repair projects to restore a clean, finished look while preserving material flexibility as temperatures shift.

How to apply and cure

Prepare the surface by cleaning and drying. Apply a continuous bead along seams and joints, then tool for a smooth finish. Allow the bead to cure before exposure to standing water. For best results, follow the product’s curing guidelines and recheck seals after seasonal changes.

Compatibility and notes

  • Formulated for EPDM roofing but compatible with most common roof materials, including TPO and PVC-based systems.
  • Designed to maintain adhesion across varied substrates and to stay flexible over time, reducing the likelihood of cracking or peeling under typical RV roof use.

FAQ

Q: What surfaces is the Dicor 551LSW sealant compatible with?

A: Primarily formulated for EPDM roofing, it also works with most common roofing materials, including TPO and PVC, and adheres to aluminum, wood, vinyl, metal, and concrete.

Q: What are typical use cases for the Dicor 551LSW sealant?

A: Seal roof edges, vents, vent pipes, and screw heads; ideal for RV roofs with a white, aesthetic finish and long-lasting flexibility.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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