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).

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.

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

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Description

🛡️ Seal smart, seal fast — concrete protection that keeps you ahead of the weather!

EFFORTLESS APPLICATION - Self-leveling formula flows smoothly into joints—no messy tooling or uneven surfaces.
WEATHERPROOF DURABILITY - Stands strong against rain, snow, and UV exposure without cracking or aging.
PROFESSIONAL FINISH READY - Can be sanded, painted, or stained to match your design vision perfectly.
SPEEDY PROJECT COMPLETION - Cures to tack-free in just hours, so your concrete jobs finish faster and hassle-free.
ULTIMATE WATERPROOF SHIELD - Blocks water infiltration permanently, protecting your surfaces from damage and decay.

SIKA Sikaflex Self-Leveling Sealant is a premium polyurethane sealant designed for horizontal concrete expansion joints. It offers accelerated curing, waterproof protection, and self-leveling ease of use, making it ideal for driveways, garages, and industrial floors. Durable against weathering and compatible with paints, it ensures a professional, long-lasting finish.

Specifications

Material	Polyurethane
Brand	SIKA
Style	Compact
Item Weight	2 Pounds
Item dimensions L x W x H	16 x 2.5 x 16 inches
Compatible Material	Concrete
Water Resistance Level	Water Resistant
Item Form	Liquid
UPC	033886093811 033886001014
Unit Count	1.0 Count
Global Trade Identification Number	00033886001014
Number of Items	1
Color	Sandstone
Surface Recommendation	Wall
Manufacturer	SIKA
Part Number	107748
Item Weight	2 pounds
Product Dimensions	16 x 2.5 x 16 inches
Item model number	107748
Is Discontinued By Manufacturer	No
Size	29 fl. oz
Pattern	Sealant
Item Package Quantity	1
Temperature Range	40-100 Degrees Fahrenheit
Usage	Amateur, Professional
Batteries Included?	No
Batteries Required?	No