Skip to product information
1 of 1
1 product view Open images for a closer look Compare photos with product details

Sika

Sika Sikaflex®-291 Fast Cure Marine Adhesive & Sealant, 10.3oz Black

Sika Sikaflex®-291 Fast Cure Marine Adhesive & Sealant, 10.3oz Black

SKUCT-105867

Regular price $15.73
Regular price Sale price $15.73
Sale Sold out
Shipping calculated at checkout.
Shipping rewards at $100 U.S. orders of $100 or more get free standard shipping, plus $10 off Expedited and Overnight.

In stock

Quantity
Use the Tug & Tow SKUInclude this SKU when you contact us about fit, availability, or reorders.
Delivery shown at checkoutShipping options, final costs, and delivery estimates appear before payment.
Check fit before orderingReview dimensions, part numbers, model details, and compatibility notes.
Confirm the details before checkoutFit can depend on your boat, RV, trailer, vehicle, or equipment. Contact us before ordering if compatibility is critical.Ask a product question

Product details

Review the details before ordering.

Secure and seal with confidence using Sika Sikaflex®-291, a high-performance, marine-grade polyurethane adhesive and sealant. Engineered for rapid strength build-up, this versatile 1-component solution provides durable, elastic, and vibration-resistant bonds crucial for demanding marine environments. Trusted by boat builders and DIY enthusiasts alike, Sikaflex®-291 offers exceptional adhesion to a wide array of marine construction materials, performing reliably both above and below the waterline. Upgrade your marine maintenance today with a sealant that combines speed, strength, and certified performance.

Key Benefits & Features:

  • Fast Cure Mechanism: Cures on exposure to atmospheric moisture, achieving rapid skin formation within approximately 60 minutes and fast strength build-up for quicker project completion.
  • Marine-Grade Durability: Formulated as a 1-component polyurethane elastomeric adhesive and sealant, it's resistant to fresh water, seawater, diluted acids, and caustic solutions, ensuring long-term performance in harsh conditions.
  • Versatile Adhesion: Bonds exceptionally well to common marine substrates including gelcoat, fiberglass, metals, wood, and paint coatings, making it ideal for a variety of general all-purpose sealing and light-duty bonding applications.
  • Flexible & Vibration Resistant: Creates elastic, vibration-resistant joint seals, accommodating movement without compromising integrity.
  • Paintable & Sandable: Once cured, it can be easily sanded and painted, allowing for a seamless and professional finish.
  • Certified Safety: NSF approved for potable water (black and white only) and USDA approved for incidental food contact, affirming its suitability for diverse applications.
  • Optimal Performance Range: Maintains stability across a broad service temperature range of -50°C to 90°C (-58°F to 194°F).
  • Low Odor & Non-Corrosive: User-friendly characteristics for easier application and safety on various materials.

Note: Sikaflex®-291 is generally processed with manual, pneumatic, or electric-driven piston guns. For optimal results, ensure surfaces are clean, dry, and free from grease, oil, and dust before application.

WarningWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Shipping & returns

Shipping methods, delivery estimates, and final costs appear at checkout before payment. Some bulky, supplier-shipped, or special-handling items may ship separately. See Shipping & Returns for return windows and eligibility.

Fit & compatibility

Review the product title, description, images, dimensions, part numbers, and manufacturer details before purchase. For fit-sensitive items, confirm compatibility with your boat, RV, trailer, vehicle, or equipment.

Need help choosing?

Send us the product link or SKU, plus details about your boat, RV, trailer, vehicle, or project. We will help you narrow down the right option when product fit is not obvious.

View full details