can this be used in-between cement joints in a walkway?

Sika’s self-leveling sealant (and backer rod) is the most appropriate product for that situation. The backer rod prevents 3 point adhesion, which you should look up before performing this job. Self-leveling sealant will flow downhill if used on a slope, so the construction sealant might be a better choice in that particular case.

If used to fill gaps between tiles, how does this (polyurethane) compare with epoxy grout ?

This has a silicone texture, I will use it in for the outdoor area. I would not use this to fill gaps between tiles, you should use epoxy grout especially if it's indoor.

Will this adhere to asphalt for the crack between driveway and cement apron? I’d rather use a weatherproof flexible sealant than asphalt cold patch.

It should! This was recommended by the company who raised up three LARGE concrete patio slabs. Unfortunately, the slabs had all moved in different directions, letting water sit up against the foundation. Once raised up, with settling of earth underneath, a couple of the slabs cracked. I used this sealant to fix those cracks. It's remained in place through two Pacific Northwest (wet) winters. It's remained flexible, keeping slab pieces together with no slippage. Good product!

Can I throw some sand on top of horizontal morter cracks after applying the Sikaflex to give it texture?

I think you can. Think of it as a kind of epoxy. If you throw some sand on its surface before it dries, the sand will end up imbedded in it.

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Construction Sealant

Product ID: 20552194

Details

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

🎨Paintable & stain-free finish

🔒High elasticity & strong adhesion

🌧️Weatherproof & waterproof

240 DH

Duties & taxes included

In stock

Sold byAmazon MoroccoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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Description

🔧 Seal smart, live worry-free — the pro’s choice for flawless joints!

CERTIFIED QUALITY - Meets ASTM & federal specs, reducing radon exposure with trusted urethane base.
INVISIBLE PROTECTION - Self-leveling, paintable formula blends seamlessly without staining surfaces.
SEAL WITH CONFIDENCE - Exceptional polyurethane elasticity prevents cracks and tears for lasting durability.
EFFORTLESS APPLICATION - 10.1 fl oz cartridge fits most guns with a precision tip for clean, accurate sealing.
WEATHERPROOF YOUR SPACE - Blocks moisture infiltration across brick, wood, concrete, and metal joints.

SIKA Sikaflex Construction Sealant is a professional-grade, one-component polyurethane sealant designed for joints 1/2" or smaller. It offers high elasticity and strong adhesion to prevent cracking, is fully weatherproof and waterproof, and can be painted or stained for a seamless finish. Certified to ASTM standards, it reduces radon levels and is easy to apply with standard caulking guns, making it ideal for durable, invisible protection in both residential and commercial projects.

Specifications

ASIN	B000RUOH1Q
Best Sellers Rank	#1,735 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Industrial Joint Sealants
Brand Name	SIKA
Color	White
Compatible Material	Plastic
Customer Reviews	4.6 4.6 out of 5 stars (1,056)
Global Trade Identification Number	00033886000413
Included Components	Multitool Accessory
Item Dimensions	11.5 x 2 x 11.5 inches
Item Form	Liquid
Item Type Name	10OZ WHT Const Sealant
Item Weight	16 ounces
Manufacturer	SIKA CORPORATION
Material Type	Polyurethane
Model	90618
Number of Items	1
Part Number	90618
Style Name	Compact
Supported Standards	ASTM C-920, TT-S-00230C, Type II
Surface Recommendation	Door
UPC	033886000413 033886093873
Unit Count	1 Count
Warranty Description	Please reference Manufacture's Product Data Sheet for Warranty Information
Water Resistance Level	Waterproof

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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

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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240 DH

Duties & taxes included

In stock

Sold byAmazon MoroccoDelivered 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 Morocco.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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