The World of Epoxies

Epoxies have improved how we build just about everything.  They have improved the way industries world wide adhere, reinforce, insulate, coat, beautify, and strengthen. Let’s take a look at what epoxies are, how they work, their varieties, and how Powerblanket can be your epoxy curing partner.

What is Epoxy?

Epoxy is a reactive compound that consists of an epoxy resin and a curing agent or hardener. It begins with a basic epoxide structure which consists of 2 hydrocarbons bonded to a single oxygen atom. These atoms contain highly reactive bonding sites that allow them to bond with a wide range of substances.

Powerblanket graphic showing what epoxy is

Epoxides will react with almost anything, which means they react very well with hardening agents to cure into a strong finished material. Epoxy can be combined with a wide range of composite materials and other substrates for industrial applications that require:

  • Durability (low degradation)
  • Low shrinkage
  • Flexible strength
  • Excellent adhesion to substrates
  • Electrical insulation
  • Chemical and solvent resistance
  • Moisture resistance

A Brief History

The first documented scientific investigations into epoxy reactions began in several countries (United States, Switzerland, Germany) shortly before World War II. These experiments were not very successful and it took several years for the first actual patent to be filed. A US scientist, Caston Greenlee secured the first patent for a commercial epoxy resin in 1943 but did not start manufacturing until 1947, when the war was over.

Other manufacturers began to realize that epoxy bonded extremely well to a variety of surfaces and could be used for coatings, adhesives, reinforcements, and more. Over the years, people have experimented with different fillers and additives to make epoxy an even more versatile tool.

What are Epoxy Composites?

Because of its ability to bond and cross link with a wide range of materials, epoxy can be combined with different additives and fillers to increase its performance and versatility. Epoxies will often get renamed according to its additives. Some of these additives include:

  • Reinforcing fibers (graphite, glass, polyaramid) to increase structural integrity
  • Powdered metals (to improve thermal and electrical conductivity)
  • Silica (to increase strength)
  • Mica (to increase electrical resistance)
  • Carbon and graphite powders (to increase lubricity)
  • Liquid rubber (to increase flexibility and crack resistance)
  • Thermoplastics (to increase crack resistance)
  • Flame retardants (decreases flammability)Powerblanket graphic on epoxy additives

    Powerblanket Epoxy Curing Solutions

    Powerblanket began our industry leading journey right here, with curing. We set forth to solve cold weather problems and help companies quickly cure to a maximum strength all year long. Our heating blankets not only keep epoxy at optimal temperatures for curing, but also preheat substrate, protect epoxy during curing, reduce costly downtime, and quickly cure to a stronger finish.

    Powerblanket graphic on epoxy curing blanketsPowerblanket epoxy curing blankets contain our patented heat spreading technology to eliminate hot and cold spots for an even cure. With a durable, heavy duty, vinyl shell, they are perfectly suited for outdoor or indoor projects. Improve the look and strength of your epoxy and cure to a quicker and stronger finish with epoxy curing blankets. Contact us today for find the perfect epoxy curing solutions for your needs.

Cure your epoxy resins faster and easier than ever before with Powerblanket.


Alex Pacanowsky

Meet Alex, one of our experts in freeze protection and the head of the custom team at Powerblanket! For the past several years, Alex has worked closely with oil & gas pros, medical device startups, and pharmaceutical suppliers (just to name a few) to create weatherproof operations. No matter how cold the weather, or what needs to be heated, Alex knows just what to do! He also loves mountain biking and spending time with his two boys, 5 and 9, and two Labrador Retrievers.

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