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Magazine Article

  

Are You Using The Correct Adhesive?

Summary

Polyester

• The stone must be completely dry.
• If you do not thoroughly mix the resin and hardener, it will most likely still cure.
• You can use most colors for tinting.
• Many varieties are available.
• It can be easily used for patching.
• Stone surface must be abraded before sticking.
• Should not be used for exterior or in moist locations.
• Quick curing time (normally 10 minutes to one hour depending on the product and the weather).
• Works well for indoor repairs and seaming.

Epoxy

• Stone can be a little moist.
• Resin and hardener must be thoroughly mixed to cure.
• You should use only colors made for epoxy.
• Not as many varieties available.
• Not as easily used for patching.
• Stone surface should be abraded, but it will stick to a smooth surface also.
• Can be used for exterior and moist locations.
• Slow curing time (normally seven hours depending on the product and the weather).
• Works well for laminations, rodding, outdoor repair, mending and attachments.

About the author:
Frederick M. Hueston runs the National Training Center for Stone & Masonry Trades, Asheville, NC 28806;
www.ntc-stone.com; and can be reached at Fhueston@aol.com.