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 Italy

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

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€ 30.75

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered 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 Italy.

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Description

🛠️ Seal like a pro, sail with confidence!

MARINE GRADE MASTERY - Superior adhesion to gelcoat, fiberglass, metal, and wood ensures your vessel stays sealed through every voyage.
RAPID SEAL ZERO WAIT - Fast tack-free cure accelerates your project timeline without compromising quality.
VERSATILE APPLICATION - Squeeze or brush on above or below waterline; paintable finish blends seamlessly with your craft.
CERTIFIED SAFE RELIABLE - NSF & USDA approved for incidental food contact — trusted by professionals for critical marine repairs.
BUILT TO BRAVE THE ELEMENTS - Resistant to fresh & sea water, acids, oils, and more — engineered for relentless durability.

Sikaflex-291 is a fast-curing, polyurethane marine adhesive and sealant designed for professional-grade bonding and sealing on boats. It offers exceptional adhesion to multiple materials including fiberglass, metal, and wood, withstanding harsh marine environments such as saltwater, acids, and oils. Its versatile application above and below the waterline, combined with NSF and USDA approvals, makes it the go-to sealant for durable, vibration-resistant marine repairs and maintenance.

Specifications

ASIN	B01GPIXX5Y
Best Sellers Rank	#7,297 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #48 in Silicone Adhesives #51 in Adhesive Caulk #105 in Industrial Sealants
Brand	SIKA
Brand Name	SIKA
Color	White
Compatible Material	Fiberglass, Metal, Wood
Container Type	Cartridge
Customer Reviews	4.6 out of 5 stars 1,343 Reviews
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	1-C polyurethane
Material Type	1-C polyurethane
Model	90919
Number of Pieces	1
Other Special Features of the Product	Fast Curing
Part Number	90919
Special Feature	Fast Curing
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.

How is product pricing calculated?+

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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€ 30.75

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered 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 Italy.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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Marine Sealant & Adhesive

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Details

Description

Specifications

Common Questions