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Sikaflex Self Leveling Sealant, Gray, Polyurethane with an Accelerated Curing Capacity for Sealing Horizontal Expansion Joints in Concrete, 10.1 fl. oz Cartridge (Pack of 4)

Sikaflex Self Leveling Sealant, Gray, Polyurethane with an Accelerated Curing Capacity for Sealing Horizontal Expansion Joints in Concrete, 10.1 fl. oz Cartridge (Pack of 4)

Q: Will this work in joints in a sloped driveway? I have long expansion joints running parallel to the slope, but it's not super steep.

I like the other answers, and read them before I did my project. My driveway has about a 5-10% grade, with perpendicular and parallel joints, 1" width. I used 1.25" backer rod from an Amazon seller, but I bought the Sika sealant locally so I could return the excess. My fill was 0.25" The perpendicular joints were no problem. I made a couple of passes once it was clear that they wouldn't flow over. The flow along the parallel joint was so slow that it never sagged significantly. I had to add a small amount at the top a couple of hours later. I used a heat gun in the beginning, thinking that it would speed the set. Wrong. Low heat actually softens the sealant. But the heat gun was helpful in bringing bubbles to the surface and making them pop. Rough or irregular spots responded well to the lowest heat (Wagner Furno 500).

Q: It says this product is paintable but it does not say that anywhere on the tube. Has anyone painted it with long term success?

I have never seen this product painted. It is a self-leveling caulk for wide joints in concrete primarily. Used around pools and in expansion joints. I always allow it to start to set then cover the surface with fine washed sand (no dust). This gives it a better appearance and extends the life years beyond what it would be without some UV protection. It should be used in a fairly thin application either with foam joint material or sand below it. Typically it is only 1/4 to 1/2" thick.

Q: In roadway, how long before heavy traffic can cross without damage to the caulking?

I put this on my concrete drive and now for 2 years I have not had any problem. Great stuff

Product ID: 548482141

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Details

Material
Polyurethane
Brand
SIKA
Style
Compact
Item Weight
3.6 Pounds
Item dimensions L x W x H
1.85 x 1.85 x

🌊Water-immersible after cure

⏱️Accelerated curing in hours

🛠️Bridges gaps up to 1.5 inches

Description

🚀 Seal smarter, cure faster, and stay ahead of the build game!

GAP BRIDGING POWER - Seals expansion joints up to 1.5 inches wide with ease
CUSTOMIZABLE FINISH - Paintable, stainable, and sandable for seamless integration
RAPID STRENGTH GAIN - Accelerated curing means faster project turnaround
ULTIMATE WATER DEFENSE - Fully water-immersible for long-lasting protection
SELF LEVELING PRECISION - No tooling needed—flawless finish every time

Sikaflex Self Leveling Sealant is a high-performance gray polyurethane sealant designed for horizontal concrete expansion joints. It features accelerated curing for quick project completion, self-leveling application with no tooling required, and water immersion resistance after curing. Ideal for gaps up to 1.5 inches, it offers flexibility, durability, and a customizable finish that can be painted, stained, or sanded to match any surface.

Specifications

Material	Polyurethane
Brand	SIKA
Style	Compact
Item Weight	3.6 Pounds
Item dimensions L x W x H	1.85 x 1.85 x 11.5 inches
Compatible Material	Concrete, Asphalt, Various Metals
Water Resistance Level	Water Resistant
Item Form	Fl
Supported Standards	ASTM D-412, ASTM D-2240
Unit Count	4.0 Count
Number of Items	4
Color	Gray
Surface Recommendation	Concrete, Floor
Manufacturer	SIKA CORPORATION
Part Number	91065
Item Weight	3.64 pounds
Product Dimensions	1.85 x 1.85 x 11.5 inches
Item model number	91065
Size	10.1 Fl Oz (Pack of 4)
Pattern	Sealant
Item Package Quantity	1
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

Will this work in joints in a sloped driveway? I have long expansion joints running parallel to the slope, but it's not super steep.

It says this product is paintable but it does not say that anywhere on the tube. Has anyone painted it with long term success?

In roadway, how long before heavy traffic can cross without damage to the caulking?

Will this stick to plastics such as vinyl?

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

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