| Important tips for preparing epoxies
Epoxies are one of an MRO
technician’s best friends. Just as many people use duct tape to fix
or reinforce anything around the house, a maintenance technician can
repair, rebuild and restore just about any damaged part in a
manufacturing facility with a good epoxy.
When fully cured, a good epoxy can be
drilled, tapped, sanded or machined, as well as painted.
A variety of strong, filled epoxies are
available to meet any repair need, but the effectiveness of any
multipart epoxy is preparation.
Follow these five tips when working
with epoxies in order to get the best results:
• Thorough mixing of epoxies in the
proper ratio is critical to their performance. When possible, the
complete containers of epoxy and hardener should be mixed at one time.
Keep in mind, however, that larger masses of material will cure
faster.
• Continue to mix the epoxy and
hardener until the product is free from streaks or other variances.
Failure to mix the components thoroughly will result in soft spots.
• Monitor the temperature. The higher
the temperature, the faster the cure.
• Prior to epoxy application, ensure
that the surface is dry, clean and abraded to provide a profile in
which the epoxy can take hold.
• If creating a mold with an epoxy,
coat the mold surface with a silicone lubricant or other release agent
before adding epoxy.
This article provided by Loctite
Corporation, a manufacturer of proprietary high-performance
engineering adhesives, sealants, coatings and chemical brand-name
specialties. For more information, visit www.loctite.com.
This
article appeared in the December 2001/January 2002 issue of MRO Today
magazine. Copyright 2002.Back
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