Question 1

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.

Accepted Answer

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).

Question 2

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

Accepted Answer

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.

Question 3

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

Accepted Answer

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

Question 4

Will this stick to plastics such as vinyl?

Accepted Answer

It should

ASIN	B000KKOO5M
Best Sellers Rank	#533 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Industrial Joint Sealants
Brand Name	SIKA
Color	Gray
Compatible Material	Concrete
Customer Reviews	4.4 4.4 out of 5 stars (5,928)
Global Trade Identification Number	00033886000437
Included Components	1
Item Dimensions	11.5 x 2 x 11.5 inches
Item Form	Liquid
Item Type Name	Self Lev Sealant
Item Weight	14.56 ounces
Manufacturer	SIKA CORPORATION
Material Type	Polyurethane
Model	91065
Number of Items	1
Part Number	91065
Style Name	Compact
Supported Standards	Federal Specification TT-S-00230C, Type 1, Class A; ASTM C-920, Type S, Grade P, Class 25
Surface Recommendation	Concrete
UPC	033886000437 033886093835
Unit Count	1 Count
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.
Water Resistance Level	Waterproof

SIKA Sikaflex 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

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