Material Characteristics

All materials have various tendencies, varying from electrical conductivity to weight enhancers; certain materials may be needed along with fillers. There are about five primary materials dispensed. Many more can and are dispensed, however these are the materials we’re asked about frequently, and their characteristics.

An epoxy is a thermosetting epoxide polymer that cures (polymerizes and crosslinks) when mixed with a catalyzing agent. Epoxies can be used as powder coatings, providing exceptional corrosion protection. Epoxy can also be used as a primer to improve the adhesion of paints especially on metal surfaces where corrosion resistance is crucial. Metal cans and containers can have an epoxy coating to prevent rust, especially for acidic foods.

Epoxies are used as industrial adhesives in aircraft, automobile, bicycle, marine, and sporting good applications where the strength of the bond cannot be compromised. Epoxies act as a high strength adhesive in almost every application:

  • Wood
  • Glass
  • Metal
  • Stone
  • Plastic

Fillers can create a flexible or rigid, transparent or opaque/colored, fast or slow curing material with unparalleled heat and chemical resistance. In general, epoxy adhesives cured with heat will be more heat resistant than those cured at room temperature.
back to top ^

Urethane/ Polyurethane
A composite formed by reacting a monomer in the presence of a catalyst. Urethanes cover a wide range of stiffness, hardness, and densities, including:

  • Flexible foam for upholstery and bedding
  • Rigid foam for thermal insulation
  • Soft solid elastomers used for gel pads or print rollers
  • Optically Clear
  • Hard, solid plastics used as electronic instrument bezels and structural parts.
  • Polyurethanes are frequently used in rigid foam insulation panels, seals and gaskets, durable elastomeric wheels and tires, electrical potting compounds, high performance adhesives and sealants, seals, gaskets, and hard plastic parts.
    back to top ^ 

Polyurethane products are sometimes referred to as “urethanes”. They should not be confused with true urethanes. Urethane is also known as ethyl carbamate. Polyurethanes are not produced from nor do they contain any ethyl carbamate. back to top ^

Silicone is a compound with a wide variety of forms and uses. From heat-resistant and nonstick to rubberlike. Silicone is frequently used in:

  • Automotive gasketing industry
  • Cookware
  • Electronic potting/encapsulating
  • Medical bandages
  • Prosthetic implants
  • Moldmaking
    back to top ^

Methacrylate is an acrylic plastic used for the production of the co-polymer, a modifier for PVC.

Methacrylate polymers are primarily used in industrial adhesive formulations.

A modern application is the use in plates that keep light spread evenly across LCD computer and TV screens.
back to top ^

sealant equipment | epoxy dispenser | sealant engineering | dispensing systems | glue dispenser | potting electronics