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topic 0723

Stone Guard / Stone Hard for Copper Substrates


Has anyone heard of a coating called "Stone Guard" or "Stone Hard" applied over a copper substrate?

This coating is apparently used on a machine for sealing the plastic bags found in cereal boxes.

Thanks and Regards

Ken Lemke
Ken Lemke
Burlington, Ontario, Canada


Stone Hard and Stone Guard are two of several names for floor covering materials made by Stone Hard. They sell mostly epoxies and polyesters. I thing the names are registered.

James Watts
- Navarre, Florida


To: Jim Watts

Thank you for the lead regarding Stone Hard.

Would you happen to have a phone number or information that would help me contact the company?

Thank You

Ken Lemke
Ken Lemke
Burlington, Ontario, Canada


While it's certainly gratifying to read something positive about Stonhard here, I must admit that the subject application is not up our alley. Stonhard makes and applies seamless polymer flooring products, linings for secondary containment structures, and some specialty industrial coatings, mainly for use on concrete. Our products are principally based on epoxy, urethane, and vinyl esters.

I don't know about "Stone Guard", but this is not one of our brand names. All of our brand names use the "Ston" prefix.

Fred Pfaff
Stonhard, Inc.

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