SIKASikaflex Self-Leveling Sealant, Gray Polyurethane, Fast Curing, for Concrete Expansion Joints, Waterproof, Paintable, Fills Cracks up to 1.5 in., 10.1 fl. oz Cartridge

SIKASikaflex Self-Leveling Sealant, Gray Polyurethane, Fast Curing, for Concrete Expansion Joints, Waterproof, Paintable, Fills Cracks up to 1.5 in., 10.1 fl. oz Cartridge

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

4.5/5

Product ID: 2023067

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Details

Material
Polyurethane
Brand
SIKA
Style
Compact
Item Weight
14.56 ounces
Item dimensions L x W x H
11.5 x 2 x

🎯Precision narrow tip for accurate application

💧100% waterproof & immersible

⏱️Fast curing in hours

Description

🚀 Seal smart, cure fast, and protect forever!

RAPID CURE TIME - Tack-free in hours, fully cured in under a week for quick project turnaround
PRO GRADE PRECISION - Narrow tip ensures clean, accurate application on expansion joints
WEATHERPROOF DURABILITY - Resists aging and harsh elements for long-lasting performance
EFFORTLESS SELF LEVELING - Smooth, even finish every time—no manual leveling needed
ULTIMATE WATERPROOF SHIELD - Blocks moisture infiltration to protect concrete from damage

SIKASikaflex is a gray polyurethane self-leveling sealant designed for concrete expansion joints. It cures quickly to a durable, waterproof, and paintable finish that fills cracks up to 1.5 inches. Engineered for professional and amateur use, it offers excellent weather resistance and precision application, making it ideal for driveways, sidewalks, and industrial concrete surfaces.

Specifications

Material	Polyurethane
Brand	SIKA
Style	Compact
Item Weight	14.56 ounces
Item dimensions L x W x H	11.5 x 2 x 11.5 inches
Compatible Material	Concrete
Water Resistance Level	Waterproof
Item Form	Liquid
Supported Standards	Federal Specification TT-S-00230C, Type 1, Class A; ASTM C-920, Type S, Grade P, Class 25
UPC	033886000437 033886093835
Unit Count	1.0 Count
Global Trade Identification Number	00033886000437
Number of Items	1
Color	Gray
Surface Recommendation	Concrete
Manufacturer	SIKA CORPORATION
Part Number	91065
Item Weight	14.6 ounces
Product Dimensions	11.5 x 2 x 11.5 inches
Item model number	91065
Size	10.1 Fl Oz (Pack of 1)
Pattern	Sealant
Item Package Quantity	1
Measurement System	Metric
Usage	Amateur, Professional
Batteries Included?	No
Batteries Required?	No
Warranty Description	SIKA warrants this product for one year from date of installation to be free from manufacturing defects and to meet the technical properties on the current Product Data Sheet if used as directed within the product’s shelf life. User determines suitability of product for intendedse and assumes all risks. User’s and/or buyer’s sole remedy shall be limited to the purchase price or replacement of this product exclusive of any labor costs. NO OTHER WARRANTIES EXPRESS OR IMPLIED SHALL APPLY INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. SIKA SHALL NOT BE LIABLE UNDER ANY LEGAL THEORY FOR SPECIAL OR CONSEQUENTIAL DAMAGES. SIKA SHALL NOT BE RESPONSIBLE FOR THE USE OF THIS PRODUCT IN A MANNER TO INFRINGE ON ANY PATENT OR ANY OTHER INTELLECTUAL PROPERTY RIGHTS HELD BY OTHERS.

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?

Trustpilot

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Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

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