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Moisture-cure Polyurethane Sealant Available in Convenient Packaging – Sika

Published on 2017-07-13. Author : SpecialChem

Sikaflex®-291i in the 70 ml packaging was first showcased at the International Boatbuilders Exhibition & Conference (IBEX) in Louisville, Kentucky, in 2015, and rolled out in March 2016. As of summer 2017, the product is now available through a wider range of distributors and retailers.

SikaFlex 291i
SikaFlex 291i

Properties of Sikaflex®-291i


  • Sikaflex®-291i is a fast curing, all-purpose, moisture-cure polyurethane sealant and adhesive, specifically designed to meet the demanding conditions of the marine environment. 
  • Sikaflex®-291i sealant has excellent adhesion to gelcoat, fiberglass, metal and wood substrates and can be utilized for applications where fast cure time is essential. 
  • It is ideal for sealing cleats, hatches, through-hull fittings, rub rails and deck fittings and hardware.

Product Benefits


  • Wheelmark approved 
  • 1-C formulation 
  • Highly elastic 
  • Low odor 
  • Non-corrosive 
  • Can be over painted 
  • Bonds well to a wide variety of marine substrates 
  • VOC and emission free

Benefits of Using this Packaging


  • The unique 70 ml unipack packaging offers a convenient solution for bonding and sealing a broad range of marine applications - not only for boatbuilders but for leisure craft owners as well. 
  • The small-size package includes its own an application nozzle and dispensing/storage tool, making easy to use without additional applicator hardware. 

Russ Livermore, VP Marketing for Sika Industry, says:

"The smaller, ready-to-use 70 ml pack is small and lightweight, making it an easy choice to toss in your toolbox or gear bag. And, short of a knife to snip open the package, you don't need additional tools to use it. The 70 ml quantity is perfect for small repair jobs, without the expense or waste associated with larger packages."

"We set out to develop the most convenient repair product a boat owner can use. We're proud of this innovative new way to package the popular Sikaflex 291i, and excited to make it more easily available to boat-owners nationwide, through broader distribution."

Sika continues to provide the marine industry with top of the line sealants and adhesives that meet and exceed customer and market demands.

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Source: Sika
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