Neoprime on colored concrete

[Craig 111]

I recently got a call from a contractor that spilled "Neoprime"-water based neopreme primer on clay/orange colored concrete. He stated that in the past his cold water machine could get the spills out. In this instance they won't. Has anyone ever tried to get these types of stains out? I'm going there this weekend and want to be prepared in case hot water doesn't do the trick.

thanks.

[One Tough Pressure 580]

"Neoprime is a single component, water based neoprime primer. Neoprime is designed to enhance adhesion of polyurethane foam to existing built-up roofing, plywood, insulation board or gypsum board. Neoprime is an excellent "Phasing" primer for use between aged spray polyurethane foam before re-application of new spray polyurethane foam. Neoprime is available in the color: Black. Neoprime is designed for application through standard airless spray equipment as well as brush or roller."

This sounds like a fun one. You may want to contact these guys and see what they have to say. Resin Technology Division

800-729-0795

http://www.resintechnology.com/MSDS_Neoprime.html

[Russ Johnson 141]

Seems to be a "rubber" based product. A detergent high in butyl content would probably help. D'Limonene would also be good.

[Craig 111]

or maybe citric? I've not put an acid down on colored concrete before, don't know if it would change color or not.

[Russ Johnson 141]

I'm thinking a solvent to break up the stain..not acid to etch it out.