What is the expiration date of these? They are difficult to use if beyond expire date.

I would not use this beyond its expiration date. Smarter to get fresh caulk as old caulk loses adhesion. This stuff is Soooo much better than anything else. But it needs to sit for 6-7 days before exposure to water in the bath or kitchen or paint anywhere else.

After I have filled the cracks can I apply more sikaflex on top of the existing sikaflex...Will it bond to itself?

Yes and no. A cured bond break will exist, but if you need to increase the fill of the caulkable gap, no harm will be created. You can reactive the existing caulk with a little acetone. BUT if it's a vertical fill, don't do it! You'll have a mess in your hands and everywhere else....

I need to seal stainless steel to concrete in an underwater pool setting with chlorine, is this the stuff to use?

I haven't had that kind of use for it, but this caulk seems very durable, and sticks pretty aggressively to everything.

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Polyurethane Sealant & Adhesive

Product ID: 18784330

Details

Brand
SIKA
Item Weight
16 ounces
Item dimensions L x W x H
2 x 2 x 12
Material
Polyurethane
Style
polyurethane

⏱️Fast tack-free time: 3 hours

🌧️Weather & age resistant polyurethane

🛠️High elasticity ±35% joint movement

C$2313

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Sold byAmazon NicaraguaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Seal smart, last long — the pro’s choice for flawless joints!

ELASTICITY THAT ADAPTS - Accommodates ±35% joint movement without cracking or tearing
DURABLE WEATHERPROOF SEAL - Urethane formula fights aging and harsh weather for lasting protection
SPEEDY APPLICATION CURE - Tack-free in 3 hours, fully cured in under a week to keep projects on track
PRECISION FOR SMALL JOINTS - Perfectly engineered for joints ≤ 1/2 inch, ideal for windows & door frames
CERTIFIED QUALITY ASSURANCE - Meets ASTM C920 & NSF/ANSI 61 standards for trusted reliability

SIKA Sikaflex-1a is a premium white polyurethane sealant designed for small joints up to 1/2 inch. It offers superior elasticity, weather and age resistance, and fast curing times, making it ideal for windows, door frames, and concrete applications. Certified to meet rigorous federal and Canadian standards, this waterproof adhesive ensures durable, flexible seals that withstand movement and environmental stress.

Specifications

ASIN	B00461KMIY
Best Sellers Rank	#5,284 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Polyurethane Adhesives #51 in Urethane Adhesives
Brand Name	SIKA
Color	White
Compatible Material	Concrete
Customer Reviews	4.4 4.4 out of 5 stars (750)
Included Components	Cartridge
Item Dimensions	2 x 2 x 12 inches
Item Form	Fl
Item Type Name	Adhesive
Item Weight	16 ounces
Manufacturer	Sika
Material Type	Polyurethane
Model	91017
Number of Items	1
Part Number	91017
Style Name	polyurethane
Surface Recommendation	Concrete
UPC	033886002752
Unit Count	1 Count
Water Resistance Level	Waterproof

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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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Farhan Q.

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

2 months ago

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C$2313

Duties & taxes included

In stock

Sold byAmazon NicaraguaDelivered 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 Nicaragua.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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