Does the black caulk dry to a gloss, or is it more matte finish, like a dull rubber?

it still retains a dark matte color I would not say dull, but not a gloss finish

Will it bond to bare aluminum to seal around the rivets?

Yes, I used it to seal my roof fans on my Sprinter. It adhered to painted metal (scored the paint), wood framing of the opening, plastic shroud and aluminum pressure plates. I am extremely satisfied with this product and from the day installed, it shows no wear even after a year. Excellent product... Another really good product is 3m 4200 Marine Adhesive...

Will this bond to rubber?

Not sure about rubber, but everything else I happened to get it on and let dry it stuck like paint. My clothes, stainless railings, fiberglass cabin, teak of course, cork fishing rod handle, my leather wallet. . .

Marine Sealant And Adhesive | Desertcart Slovakia

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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€ 41.74

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In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

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Description

🛠️ Seal it fast, seal it right — the pro’s choice for marine mastery!

RAPID SEAL ZERO WAIT - Fast tack-free time accelerates your project timeline without compromising quality.
MARINE GRADE TOUGHNESS - Resists fresh & sea water, acids, oils, and more for long-lasting performance above and below waterline.
UNIVERSAL BONDING POWER - Adheres flawlessly to fiberglass, metal, wood, and gelcoat—trusted by professional boat builders.
CERTIFIED SAFE PAINTABLE - NSF & USDA approved for incidental food contact and can be painted to match your vessel’s style.
FLEXIBLE VIBRATION RESISTANT - Elastic polyurethane formula ensures durable seals that withstand marine vibrations and movement.

Sikaflex-291 is a premium fast-curing polyurethane adhesive and sealant designed for marine applications. It offers exceptional adhesion to multiple materials including fiberglass, metal, and wood, with superior resistance to water, chemicals, and oils. Ideal for above and below waterline use, it delivers durable, vibration-resistant seals trusted by boat builders and professionals. NSF and USDA approvals ensure safety for incidental food contact, making it a versatile, reliable solution for all your marine sealing needs.

Specifications

ASIN	B01GPIXX5Y
Best Sellers Rank	#5,631 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #42 in Silicone Adhesives #53 in Adhesive Caulk #103 in Industrial Sealants
Brand Name	SIKA
Color	White
Compatible Material	Fiberglass, Metal, Wood
Container Type	Cartridge
Customer Reviews	4.6 4.6 out of 5 stars (1,342)
Included Components	10.1 fl oz Cartridge
Item Form	Gel
Item Package Quantity	1
Item Type Name	Adhesive
Item Weight	300 g
Manufacturer	Sika USA
Material Type	1-C polyurethane
Model	90919
Number of Pieces	1
Other Special Features of the Product	Fast Curing
Part Number	90919
Specific Uses For Product	Boating
Tensile Strength	260 kips_per_square_inch
UPC	033886005258
Unit Count	10.1 Fluid Ounces
Viscosity Level	Medium
Volume	10.1 fluid ounces
Water Resistance Level	Water Resistant

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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The delivery time was excellent, and the packaging was secure.

2 months ago

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€ 41.74

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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Marine Sealant & Adhesive

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Details

Description

Specifications

Common Questions