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Internet # 326127915

Model # 2899405

Store SKU # 184360

PL S30 10 oz. Black Polyurethane Roof and Flashing Sealant

$8.98
  • Premium, paintable, weatherproof polyurethane formula
  • Designed for exterior use on roofs, chimneys and more
  • Elastic, permanently flexible, resistant to corrosion and tears
  • View More Details

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Product Details

About This Product

Loctite PL Roof and Flashing Polyurethane Sealant is a premium quality professional grade sealant developed especially for forming permanent, weatherproof seals for gaps and joints on roofs and chimneys. The durable formula has ± 25% movement capability allowing for shifts in building materials without jeopardizing the seal. PL Roof and Flashing can withstand harsh UV rays and other harsh exterior elements for a long-lasting durable seal. Loctite PL Roof and Flashing is a low VOC formula that meets strict federal and state guidelines.

Highlights

  • Premium durable polyurethane formula developed especially for forming permanent, weatherproof seals without deteriorating
  • Seals all exterior gaps and expansion joints for use on roofs, chimneys and joints
  • Remains permanently flexible to resist corrosion and tears and provides properties of non-sag
  • Use on expansion joints, ± 25% movement
  • Weatherproof to withstand harsh exterior environments and is UV and ozone resistant without softening in the Sun
  • Paintable to blend in with surrounding surfaces for a professional finish
  • Permanent seal with just 1-time application and no primer needed
  • Polyurethane formula with low VOC emissions and meets strict federal and state guidelines
  • Click Here for the How to Caulk Project Guide
  • Return Policy

Product Information

Internet # 326127915

Model # 2899405

Store SKU # 184360

Additional Resources

Shop All Loctite

Specifications

Individual size (oz.): 10 oz

Dimensions

Individual size (oz.)

10 oz

Details

Caulk and Sealant Application

Blacktop & Roof

Caulk and Sealant Type

Polyurethane

Color/Finish

Black

Dry Color Family

Black

Dry to Touch (min.)

1440 min

Features

Moisture Resistant, Mold and Mildew Resistant, Paintable, Permanently Flexible

Interior/Exterior

Exterior

Number of Tubes Included

1

Professional Paint Supplies & Values

Pro Supplies

Returnable

90-Day

Sealant Form

Standard Tube

Transparency

Solid

Warranty / Certifications

Manufacturer Warranty

NA

Questions & Answers

Can I use this to seal rivet heads before/underneath acrylic roof sealant? (APOC 246)
ByApr 10, 2026
0 Answer | 
Answer This Question

Can this be applied in 30° weather?
ByMar 15, 2026
1 Answer | 
Answer This Question

Thank you for your question. For best performance and results, use Loctite PL Roof & Flashing Polyurethane Sealant above 40°F (4°C). In cool or cold weather, store the container where the temperature is about 75°F (25°C) for at least 24 hours before using. If you need more information about our product, please visit www.loctiteproducts.com and review the product’s technical data sheet.

By|Mar 17, 2026


    can this be used to fill in holes from the lag bolts from a satellite dish
    ByFeb 15, 2026
    2 Answers | 
    Answer This Question

    Stephen, I don't suggest doing this. I tried this and it failed miserably. Find a local roofer to replace the shingles on the roof. A good one should be able to color match.

    By|Feb 21, 2026

      Thank you for your question. Loctite PL Roof & Flashing Polyurethane Sealant is not recommended for use as a hole filler.

      By|Feb 17, 2026


        Temperature for application
        ByFeb 3, 2026
        1 Answer | 
        Answer This Question

        Thank you for your question. Loctite PL Roof & Flashing Polyurethane Sealant should be applied above 40°F and below 100°F. For best results, use when surface temperatures are between 60°F and 90°F. If you need more information on our product, please visit www.loctiteproducts.com and review the product's Technical Data Sheet.

        By|Mar 25, 2026

          (1)

          Can this product be used on rigid black thermo plastic roof boot?
          ByJan 15, 2026
          1 Answer | 
          Answer This Question

          Thank you for your question. Loctite PL Roof & Flashing Polyurethane Sealant may bond to certain rigid plastics but not all plastics. In situations like this, only you can determine if the product is suitable for your intended use by testing the application prior to starting your project. Keep in mind that certain plastics may experience bonding difficulties depending on the nature of the project.

          By|Jan 15, 2026


            Will this work on HDPE?
            ByJan 14, 2026
            1 Answer | 
            Answer This Question

            Thank you for your question. Loctite PL Roof & Flashing Polyurethane Sealant is not recommended for use on polyethylene plastics.

            By|Jan 15, 2026


              Can it be applied to wet shingles, or wet flashing?
              ByJan 11, 2026
              1 Answer | 
              Answer This Question

              Thank you for your question. We recommend applying Loctite PL Roof & Flashing Polyurethane Sealant to dry surfaces. If you need further assistance with our products, please reach out to our technical team at 1-800-624-7767

              By|Jan 12, 2026


                Is yhis good for use on metal camper roof vent instal
                ByJan 9, 2026
                1 Answer | 
                Answer This Question

                Thank you for your question. Loctite PL Roof and Flashing Polyurethane Sealant is a construction sealant and is not suited or recommended for this kind of application and should not be used. You need to use an adhesive specifically designed for automotive applications.

                By|Jan 9, 2026


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                  Customer Reviews

                  4.6 out of 5

                  • 4.6 out of 180 reviews
                  • 100% recommend this product
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                  Showing 1-10 of 180 reviews
                  Easy to use, dry nice and fast. I will buy again!
                  by
                  Response from Loctite/Henkel CorporationApr 6, 2025
                  It's great to hear that you're satisfied with our product. LoctiteConsumerRelations
                  • Verified Purchase
                  Applies easy!
                  [This review was collected as part of a promotion.] Very happy with Loctite PL Roof & Flashing Polyurethane. We had a new roof put on 6 years ago, and the roofers told us to make sure we kept up on maintenance with the flashings. My husband checks the roof every year and keeps things sealed. Loctite works fabulous. He applied it with a caulk gun for easier control. It was easy to apply, flexible, high quality and durable. It withstands the summer heat right now, and I have confidence it will be just as great in other elements. Loctite is also paintable, although, we did not need to do that, but it might be worth mentioning for those interested. I highly recommend this- and keep up on those flashings!
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                    Worked great! We used it to seal a part of our porch roof.
                    by
                    Response from Loctite/Henkel CorporationApr 2, 2026
                    We’re glad to hear that you had a great experience with our product. LoctiteConsumerRelations
                    Worked as advertised
                    by
                    Response from Loctite/Henkel CorporationApr 2, 2026
                    We’re happy to know our product worked well for you. LoctiteConsumerRelations
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                    Showing 1-10 of 180 reviews