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Internet # 100241060

Model # 66-5-HD

Store SKU # 147538

5-Gal. 66 Modified Bitumen Adhesive Brush Grade

  • Rubberized formulation makes roof surfaces leakproof
  • Ideal for applying on SBS membrane base, BUR ply sheets, and more
  • Easy application with a serrated squeegee or roofing brush
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Product Details

About This Product

66 Modified Bitumen Adhesive is a bituminous based adhesive sealant designed for the application and repair of SBS modified bitumen single-ply membranes and bituminous single-ply membranes. When properly utilized this product adheres the membrane and seals the laps to prevent water intrusion. USES: 66 Modified Bitumen Adhesive Brush-Grade is used to adhere and repair SBS modified bitumen single-ply membranes, base and ply sheets, and bituminous single-ply membranes. 66 Modified Bitumen Adhesive Trowel-Grade can be used to seal and make repairs on existing modified applications and flashings on vertical surfaces, i.e. skylights, vents and pipes.

Highlights

  • Highly-rubberized adhesive creates an excellent bond for installing roof membranes
  • Provides tough, flexible, adhesive and cohesive film
  • Apply cold
  • Easily applied with a serrated squeegee, roller or roofing brush (Sold separately)
  • Excellent water and weather resistance
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 100241060

Model # 66-5-HD

Store SKU # 147538

Additional Resources

Shop All Karnak

Specifications

Dimensions: H 13 in, W 12 in, D 12 in

Dimensions

Product Depth (in.)

12 in

Product Height (in.)

13 in

Product Weight (gal)

5 gal

Product Width (in.)

12 in

Details

Application Method

Brush On

Coating Base

Asphalt

Cold Applied

Cold Applied

Features

Water Resistant

Roof Repair Type

SBS

Roofing Product Type

Construction Adhesive

Surface Recommended

Rubberrized-Asphalt

Warranty / Certifications

Manufacturer Warranty

5-Year Limited Material

Questions & Answers

17Questions
caret
Q:How many sheets or sqft does this cover? How many gallon is this?
by|Apr 25, 2022
1 Answer
Answer This Question

A:  The application rate for 66 Modified Bitumen Adhesive Brush Grade is 1 to 2 gallons per 100 sq. ft. Most rolls of SBS Modified Bitumen roofing are around 100 sq. ft. per roll, depending on the manufacturer. This means a 5-gallon pail of 66 Mod. Bit Adhesive will install approximately 2.5 to 5 rolls.

by|Feb 13, 2024
    1 found this answer helpful
    caret
    Q:Can I use this product on the torch down cap sheet?
    by|Sep 14, 2021
    1 Answer
    Answer This Question

    A:  This product is an adhesive for SBS modified bitumen roof membrane that does not have burn-off layer. APP torch-down modified bitumen roofing membranes typically have a burn-off layer, hence why they are called 'torch-down', that must be installed using a roofing torch. This burn-off layer would prevent the adhesive from adhering. That said, 66 Modified Bitumen Adhesive can be used to make repairs using SBS modified bitumen membrane (without a burn-off layer) to the top side of torch-down membranes after the surface has been cleaned.

    by|Sep 14, 2021
      caret
      Q:can i use this product to adhere rolled asphalt roofing to a metal roof?
      by|Sep 9, 2021
      1 Answer
      Answer This Question

      A:  Cold-applied modified bitumen adhesives are intended to bond SBS membrane ply or cap sheet to an asphalt base sheet membrane. They are not for bonding the entire roof membrane to a metal roof. I would recommend you follow the installation guidelines from the manufacturer of the SBS modified bitumen membrane for acceptable installation practices.

      by|Sep 10, 2021
        caret
        Q:Is this rated for astm d41 appliacation ? looking for an asphalt primer that fits that application
        by|Sep 2, 2020
        1 Answer
        Answer This Question

        A:  KARNAK 66 or 81 Modified Bitumen Adhesive are bituminous based adhesive sealants designed for the application and repair of SBS modified bitumen single-ply membranes and bituminous single-ply membranes. Both the KARNAK 66 and 81 meet ASTM D3019 Type III KARNAK 108 Asphalt Primer meets ASTM D-41

        by|Sep 2, 2020
          Showing 1-4 of 17

          Customer Reviews

          4.3 out of 5

          • 4.3 out of 21 reviews
          • 100% recommend this product
          Filter by:
          Showing 1-10 of 21 reviews
          Pretty good material...
          Pretty good material
          by
          • Verified Purchase
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          • Verified Purchase
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          Graet Product
          This product works great with new roof or repairs. We use the "roof tube" to apply along seams and small holes. it seals great!
          by
          • Verified Purchase
          Did not stick at all to bitumen membrane...
          Did not stick at all to bitumen membrane
          by
          Response from KARNAK Technical GroupOct 18, 2021
          Sorry you did not obtain the desired results you were looking for with this product's use. The adhesive is intended to be applied to new asphalt membrane or properly prepared and cleaned asphalt membrane. I would recommend checking to make sure the substrates were prepared and clean prior to using. KARNAK
            Good product works as described...
            Good product works as described
            by
            Response from KARNAK Technical GroupOct 8, 2021
            Thank you for choosing KARNAK and for your rating. KARNAK
              Rating provided by a verified purchaser...
              Rating provided by a verified purchaser
              by
              Response from KARNAK Technical GroupSep 24, 2021
              Hello, how could your experience have been better? I would be interested to hear your comments from this rating in order to help us improve the user experience. Thank you for your time. KARNAK
                It do the work pretty well....
                It do the work pretty well.
                by
                  by
                  • Verified Purchase
                  • Recommended
                  by
                  • Verified Purchase
                  Showing 1-10 of 21 reviews