Hapco is a leading manufacturer and formulator of high-performance epoxies and urethanes for numerous industrial applications. We also offer custom formulations for specialized projects that require specialty resins to meet stringent requirements and specifications.

Extensive Range of Material Types

As experts in highly engineered polyurethane and epoxy coatings, adhesives, and liquid molding materials, our comprehensive product selection is suitable for the needs of many different industries. They excel in applications requiring a blend of strength and flexibility, 

  • Vehicle bumpers and assorted components demanding robust elasticity.
  • Aerospace components designed for exceptional performance under severe temperature fluctuations and challenging conditions.
  • Medical apparatus including catheters and implants, where longevity and biocompatibility are paramount.
  • Building materials engineered for long-term durability against environmental exposures.

Semi-Rigid Urethanes

Customize and strengthen your products using semi-rigid urethanes developed to withstand extreme wear and tear and other applications susceptible to abrasion. These products are low viscosity for better processing and are outstanding at duplicating detailed surface patterns, down to the fine lines of a fingerprint.

Applications of semi-rigid urethanes:

  • Impact-resistant prototypes
  • Industrial surface coatings
  • Foundry patterns
  • Forming dies
  • Fixtures

Rigid Urethanes

Materials that can provide unmatched strength, rigidity, and durability are needed for the toughest environments. Rigid urethanes include high-performance plastics and polyurethanes that can fulfill these needs with customized and standard formulations to protect your products from challenging elements.

Where rigid urethanes are commonly used:

  • Medical device housings
  • Medical instrumentations and models
  • Quality reproductions
  • Aftermarket parts
  • Production parts


Epoxies are a class of thermosetting polymers known for their strong adhesive properties, mechanical strength, chemical resistance, and durability. This versatility allows them to be molded into a vast array of durometers, shapes, and forms. For instance, they can be formulated to be extremely rigid or flexible, transparent or opaque, heat-resistant, or electrically insulating. 

Because of this adaptability, they are employed in applications as diverse as aerospace, where they are used to create lightweight yet strong components, and electronics, where their insulating properties are crucial for circuit boards and semiconductor encapsulations.

Where epoxies are typically utilized:

  • Custom medical devices
  • Filter technologies
  • Electrical components
  • Composite materials 

Epoxy Powder

Our unique formulation of lightweight epoxy powder provides excellent adhesion, corrosion resistance, and chemical resistance. It’s primarily utilized in potting applications where curing compounds at temperatures over 85°C are avoided to protect sensitive components from damage.

Example applications of our epoxy powder include:

  • Electrical systems
  • Aerospace components
  • Medical devices
  • Lightweight safety equipment

Clear Urethanes

Colorless and clear-casting urethanes are ideal for products that require high clarity and protection. These are also low viscosity, making them easy to convert due to their versatility. Hapco clear urethanes also work exceptionally well with our Color Dispersions for pigmentation and color-matching.

Applications of clear urethanes:

  • Decorative cast sculptures
  • Color-match production parts
  • Translucent training models
  • Water-clear optical components


Our tin-catalyzed silicone elastomer is ideal for mold-making, especially when working with clear aliphatic urethane casting resins such as our Ultraclear 480N Series or Hapflex 700 Series. Hapsil 360 is known for its non-inhibiting properties and resistance against extreme temperatures and chemicals.


  • Molds for casting clear urethanes
  • Silicone masters
  • Gasketing materials

Achieve Quality with Our Precision Urethanes and Epoxies

Hapco is a trusted source of world-class thermoset materials for multiple industrial operations. Our materials have exceeded expectations in the most demanding environments, providing our customers with top-performing products beyond their requirements.

Contact us today to learn more about how we can help you reduce reject rates and improve efficiency in your individual process. Request a quote, and we can find the right system tailored to your needs.

Flexible Urethanes

Shore 25-95A

Semi-Rigid Urethanes

Shore 50-72D

Rigid Urethanes

Shore 70-90D


Epoxy Resins and Powders

Epoxy Powder

Clear Urethanes


Tin Catalyzed Silicone Rubber

Hapsil™ 360 is a high tear strength, tin-catalyzed RTV-2 silicone rubber. Hapsil™ 360 works well with clear and colorless casting resins that typically exhibit a sticky, uncured surface when cast against most silicones. It is easy to mix and de-gas, and cures with minimal shrinkage.

Custom Formulations

Epoxies • Polyurethanes • Hybrids

NOTE: These products are intended for industrial use only. Refer to the Safety Data Sheets prior to use.