Concrete Mender™ compared to polyurea and epoxy concrete repair products.

We here at Roadware are familiar with the knock-off and look-alike products in the market place. These products fall into the category of a low viscosity polyurea. Basically, what they have done is modify a standard polyurea joint filler and added a solvent to make it appear as a high-penetration Concrete Mender™-like product. They are all missing the key property and process that makes Roadware 10 Minute Concrete Mender™ unique and superior in overall performance. This process is called Microdoweling™. Roadware’s Microdoweling™ process uses a proprietary formula of polyurethanes and additives to achieve a measured surface tension of 0.026 N/m. (1/3 of water) Surface tension is a measurement of a liquids ability to break free of its own molecular friction and flow into something else.

Microdoweling™ is why Roadware 10 Minute Concrete Mender™ can penetrate easily into a concrete surface under adverse conditions, as is the case in distressed, broken and cracked concrete.

Roadware 10 Minute Concrete Mender with Microdoweling™ penetrates into the concrete where epoxy and polyurea can’t.

Other advantages for Roadware 10 Minute Concrete Mender™ are:

The lowest viscosity for easier mixing and blending.
Easy injection application to over 24″ deep without expensive pumps or ports.
Easy, one-step polishing and grinding. This material will not melt, smear, or gum up diamond polishing pads. An excellent parging compound.
Experienced and advanced packaging. Roadware cartridge packaging is reliable and works well in the field.
End-user color blending. New Concrete Mender™ Off-white can easily by manipulated into many colors by modifying the sand or adding pigments.
A modulus of elasticity that is slightly less then the concrete so repairs will move with the concrete and not against it.
Needle tip application. A complete system of needle-tip cartridge mixers for pin-point application and hairline crack repair.
The Roadware Easy Injection System for less evasive concrete injection and delamination repairs without pumps, ports, or cutting.
It’s all in the data. Roadware backs up the Microdoweling™ process with independent testing data and publishes here.

	Concrete Mender™	Epoxy Grout	Polyurea Crack Filler	Low Viscosity Polyurea
Material	Hybrid-Polyurethane	Epoxy	Polyurea	Polyurea
Bonding	Full Penetration Bond	Surface bond only	Surface bond only	Surface Bond only
Microdoweling™ Surface	Yes (1/3 of water)	No	No	No
Tension
Viscosity (water = 1 cps)	>8 cps	10,000 cps	1500cps	60 – 190cps
Grind and polish	Yes	No	No	Limited
Trowelable	Yes	Yes	No	Limited
Cooler/ Freezer Application	– 30 ° F	No	Yes	Yes
Structurally Re-bonds cracked slabs	Yes	No	No	No
Protects sidewalls from further damage	Yes	No	No	Limited
Feather edge repairs	Yes	No	No	Not listed
Cure time to traffic	10 Minutes	24 Hours	30 minutes	10-15 Minutes
Blending and Finishing	15 Minutes	None	None	24 Hours
Extendable with sand and rock	Yes up to 6x	No	No	Limited
Handy Cartridge Application	Yes	No	No	Yes
Non-shrinking	Yes	No	No	Unknown
Unlimited depth and width	Yes	No	No	Unknown
Chemical Resistance	Excellent	Fair	Good	Good
Dynamic Load Transfer	Yes	No	No	No
Needle tip gravity crack injection	Yes	No	No	No

This table shows typical product specifications and properties when compared to Roadware 10 Minute Concrete Mender™.

Forensic photography of 24" deep concrete crack repair with Roadware 10 Minute Concrete Mender. — 24 inch deep concrete core sample showing Roadware 10 Minute Concrete Mender repairing cracks at full depth.

See more here.

Roadware 10 Minute Concrete Mender yields more than twice the repair material over typical epoxy or polyurea. A little Concrete Mender goes a long way.