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.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Sikaflex-1a Sealant, 10.1 fl oz, White – Premium Adhesive for Small Joints, Weather & Age Resistant, High Elasticity, Ideal for Windows, Door Frames & More

Product ID: 18784330

Details

Brand
SIKA
Color
White
Full Cure Time
5 Days
Item Weight
16 ounces
Liquid Volume
10.1 Fluid

🌀±35% joint movement elasticity

🧱0.5 in max joint depth

🌦️weather & age resistant

11.10 OMR

Duties & taxes included

In stock

Sold byAmazon OMANDelivered 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 OMAN.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Description

🔧 Seal Smart, Last Long – The Ultimate Flex Seal for Pro-Level Precision!

FAST CURE EFFICIENCY - Tack-free in just 3 hours, fully cured in under a week—get projects done faster.
WEATHERPROOF DURABILITY - Urethane formula resists harsh weather and aging, ensuring long-lasting protection.
CERTIFIED QUALITY ASSURANCE - Meets ASTM C920 & NSF/ANSI 61 standards for trusted, reliable performance.
ELASTICITY THAT MOVES WITH YOU - Accommodates ±35% joint movement to prevent cracks and tears under stress.
PRECISION FIT FOR SMALL JOINTS - Perfectly seals gaps up to 1/2 inch for flawless finishes on windows and door frames.

SIKA Sikaflex-1a is a premium white polyurethane sealant designed for small joints up to 0.5 inches. It offers superior weather and age resistance, high elasticity accommodating ±35% joint movement, and fast curing times with a tack-free touch in 3 hours. Certified to ASTM and NSF standards, it’s ideal for windows, door frames, and various interior/exterior applications requiring durable, waterproof sealing.

Specifications

ASIN	B00461KMIY
Best Sellers Rank	#5,510 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #8 in Polyurethane Adhesives #45 in Urethane Adhesives
Brand	SIKA
Brand Name	SIKA
Color	White
Customer Reviews	4.5 out of 5 stars 724 Reviews
Full Cure Time	5 Days
Included Components	Cartridge
Initial Hardening Time	3 Hours
Item Form	Fl
Item Type Name	Adhesive
Item Weight	16 ounces
Liquid Volume	10.1 Fluid Ounces
Manufacturer	Sika USA
Material Type	Polyurethane
Maximum Gap Fill	0.5 Inches
Model	91017
Number of Items	1
Part Number	91017
Surface Recommendation	Concrete
Tensile Strength	175 Pounds Per Square Inch
UPC	033886002752
Unit Count	1.0 Count
Water Resistance Level	Waterproof

Common Questions

Are the products genuine and authentic?+

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.

How long does delivery take and is it reliable?+

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.

What is Desertcart? Is it safe to order from?+

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

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.