TotalBoat Seal Marine Sealant
Sikaflex 291 Long Open Time
Sika Sika
  • Sikaflex 291 Long Open Time

Sikaflex 291 LOT

Sikaflex 291 LOT is an all purpose elastic adhesive, used to bond floors to subfloors or metallic frames, exterior or interior panels, bonding trim moldings to hull etc. Long open time. The 10.3 oz cartridge pictured above is used in conjunction with an inexpensive caulking cartridge gun. The 3 oz size comes in a squeeze tube and does not require a cartridge gun.
 
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Tech Spec Product Info User Generated Content
    Technical Specifications
  • Density: 10.3 lb/Gal
  • Tack Dry: 3-5 hours
  • Rate of Cure: 1/4 in x 1/4 in bead 14 days at 40 deg F/60 percent RH
    1/4 in x 1/4 in bead 7 days at 73 deg F/50 percent RH
    1/4 in x 1/4 in bead 2 days at 73 deg F/90 percent RH
    1/4 in x 1/4 in bead 3 days at 100 deg F/40 percent RH
  • Shore A Hardness (ASTM D2240): 40 to 45
  • Elongation at break (ASTM D4132): 700 percent
  • Tensile Strength (ASTM D412): 200 psi
  • Lap sheer strength (ASTM D1002): 120 psi
  • Peel Strength: 30 lbs/in on fiberglass, 25 lbs/in gelcoat
  • Application temperature: 40-110 degrees F
  • Service Range: -40-180 degrees F
  • Colors: White, Black and mahogany
  • Sandable, paintable, waterproof
  • Shelf Life: 15 months
  • Below Water Line (yes/no): Yes
    BRAND: Sika
    Material: Polyurethane
    Rate Of Cure: Slow
    Strength: Good
    Type: Adhesive
    Usage: Bonding
    4.5 4

    REVIEW SNAPSHOT®

    by PowerReviews
    Sikaflex 291 LOT
     
    4.5

    (based on 4 reviews)

    Ratings Distribution

    • 5 Stars

       

      (2)

    • 4 Stars

       

      (2)

    • 3 Stars

       

      (0)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (0)

    100%

    of respondents would recommend this to a friend.

    Pros

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    Cons

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    Best Uses

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      • Advanced (3)

    Reviewed by 4 customers

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    4.0

    Not exactly what i wanted but it worked.

    By mike

    from Michigan

    About Me Advanced

    Verified Buyer

    Pros

      Cons

        Best Uses

          Comments about Sikaflex 291 LOT:

          WE used the Sikaflex 291 LOT for caulking the deck seams on our antique runabout.

          The Sika brand is the preferred and the best product for the job. However the LOT isn't really what we wanted. The normal or quick cure would have been greatly preferred.

          • Was this a gift?:
          • No
           
          4.0

          Truly "Long Open Time"

          By Jim E.

          from COBBS CREEK, VA

          About Me Advanced

          See all my reviews

          Verified Buyer

          Pros

          • WORKS

          Cons

          • Messy

          Best Uses

          • Attaching Teak Trim

          Comments about Sikaflex 291 LOT:

          This is equal to 4200 but with a slower cure rate. This allows for a partially used tube to be stored for up to 30 days. Other types curing solid in an opened tube in as little as one day. This does mean the use of the product might take up to a week or more to fully cure but for my project this was not a problem.

          • Was this a gift?:
          • No
           
          5.0

          Long open time is right

          By Kurt

          from Maine, USA

          About Me Advanced

          Verified Reviewer

          Pros

          • Easy to Use
          • Protects Well

          Cons

            Best Uses

            • Outdoor

            Comments about Sikaflex 291 LOT:

            I have used the same tube for about 30+ days and still flows like the 1st day. Re bedding above water line items on a sail boat that I am working on. Tape around fittings for easy clean up.

             
            5.0

            Sikaflex 291 LOT

            By JW

            from Homewood, Kansas

            About Me Sponsored Professional

            Verified Reviewer

            Pros

            • Easy to Use
            • Protects Well
            • Weather Proof

            Cons

            • Messy

            Best Uses

            • Wood Trim

            Comments about Sikaflex 291 LOT:

            We use this product for bedding teak toe rails and hardware on sailboats. It will last in the tube better than 5200. Easy clean up with mineral spirits.

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