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Hapco is a world-leader in the design, development and manufacture of thermoset polymer alloys including; high-strength polyurethanes and epoxy resins for parts and tooling production, potting and encapsulating compounds, Liquid Molding™ plastics and structural adhesives.

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Sympoxy

Commonly used for casting museum quality reproductions, medical models, and medical device housings, Ultralloy™ includes several clear, white and amber materials that are available in different gel times depending on your processing needs. The Ultralloy™ 300 and 3300 Series products are UL 94V-0 and carry a yellow card from UL.

Ultralloy

Food mashers, sugar and chocolate molds, dough rollers, pill chutes, filling nozzles, and sorting channels are a few examples of components that can be made from Steralloy™ products.

STERalloy

Hapflex™ is easily Hapco’s most versatile line of thermoset materials. With a wide range of gel times, durometers, and colors to choose from, these high quality thermoset resins have been used for casting molds, parts, seals, gaskets, pads, linings, coatings, and much more.

Hapflex

Di-Pak™  consists of flexible and rigid, production grade, dielectric polyurethanes and epoxies for potting, encapsulating, insulation, coatings, and much more. Di-Pak™ includes opaque and translucent formulations, as well as various gel times to match your application requirements.

Di-Pak

Hapsil™ is a high tear strength, tin-catalyzed RTV-2 silicone rubber. Hapsil™ works well with clear and colorless casting resins that typically exhibit a sticky, uncured surface when cast against most silicones.

Hapsil

Ultraclear™ products are UV resistant, mercury free, and low viscosity. Ultraclear™ has been used for prototyping, aftermarket parts, custom lenses, sculptures, potting, encapsulating, and much more!

Ultraclear

Filter-bond™ is a series of thermoset potting compounds used for potting and pre-potting applications by some of the industry's largest filter manufacturers.

Filter-bond

Tuffalloy™ products are commonly used for casting prototype and production parts that must exhibit thermoplastic properties, such as high impact resistance and service temperature. These products cure to a translucent light brownish color and are available in 4 speeds.

Tuffalloy

A single component, heat-cured epoxy powder that is lightweight, flame retardant and easy to use. SYMPOXY™ 1960G is typically used for potting electrical components. It is ideal in
applications where exothermic or curing temperatures above 85°C cannot be tolerated and where thermal expansion/contraction should not harm delicate components. 

Sympoxy™ 1960G

RIGIDDI-PAK R-4528 SeriesA black, flame retardant, thermally conductive, high performance series that can be used in all types of electrical components. Combined with its ability to dissipate heat, DI-PAK R-4528 also provides low linear thermal expansion, low shrinkage, and low exothermic heat while curing. Meets UL requirements.

Di-Pak™ R-4528/30

A clear amber, 100% solids, room temperature curing epoxy system with a convenient 1:1 mix ratio by volume. 1010-CA810 is great for electrical potting and encapsulating, industrial surface coating, wood surface coat and seal coat. This product cures to a hard, shiny, high gloss finish that is free from “amine blushing” under all humidity conditions.

Sympoxy™ 1010-CA810

The Hapflex 500 series offers a full range of soft durometers, from 45 - 95 Shore A, while the Hapflex 600 series yields harder durometers on the Shore D scale ranging from 50 - 70 Shore D. All are relatively fast, room curing, flexible systems that do not require post curing, but can be accelerated with moderate heat for faster curing. Most Hapflex 500 & 600 products are offered in 2 speeds: a standard 30-45 minute working time, and a 3-6 minute working time for fast demold.The Hapflex elastomers are low viscosity, making them easy to handle and pour, yet still provide precise duplications of surface details surface finishes.In addition, the Hapflex elastomers are virtually shock resistant and unbreakable, making them exceptionally well suited for permanent molds, parts or master patterns that will not crack or chip during use or storage. A major advantage is the superior abrasion resistance properties of the Hapflex elastomers.Precision tracing patterns, roll coverings, fixtures, flexible parts, forming dies, bending tools, and a variety of foundry applications are just a few examples of Hapflex applications.Available in Flame Retardant

Hapflex™ 660

DI-PAK E-4500 SERIESFlexible, 45, 65 and, 95 shore A hardness, potting and encapsulating systems. Flame retardant (FR), accelerated 3 minute (-3) gel time, and black or unpigmented versions are available.

Di-Pak™ E-4595

Hapflex™ 540

DI-PAK E-4568A tough, REPAIRABLE, shock resistant potting compound for short and long run productions. DI-PAK E-4568 has excellent insulating properties, a very low moisture vapor transmission rate, can be operated from -60°C to +100°C, and performs in both wet and dry environments. It can be easily trimmed with a knife, making repairs quick and easy.

Di-Pak™ E-4568

STERalloy FDG is the first Liquid Molding Polymer Alloy Series that has been specifically designed for food and drug applications. All of the products in the STERalloy FDG Series exhibit unique physical and chemical properties and have been used in numerous applications where biocompatibility is required.Key Advantages: Approvable Materials Wide range of hardnesses ROHS compliant Very high physical properties Low moisture sensitivity Easy to use The food, drug, pharmaceutical, wine, beer, juice, dairy, hospital equipment, and prosthetic industries are just some examples of applications that utilize special products such as STERalloy FDG.STERalloy FDG Elastomeric Series: various hardness elastomers, shore 20A - 72D clear in color available in 2 speeds - fast and slow STERalloy FDG Rigid Series: rigid, tough polymer alloy plastics high heat distortion high physical properties

STERalloy™ FDG 2505

STERalloy™ FDG 2036-5

Hapco Inc.

Hapco is a world-leader in the design, development and manufacture of thermoset polymer alloys including; high-strength polyurethanes and epoxy resins for parts and tooling production, potting and enc

Hapco Inc. - Knowde

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The HAPFLEX FR Series products are flame retardant and are available in a 65A, 80A and 50D hardness.They can be used in both Liquid Molding applications (i.e. parts, gaskets, coatings) and electrical insulation applications (i.e. potting and encapsulating). All of these products have a rating of 94 V-0.

Hapflex™ 565 FR

The HAPFLEX FR Series products are flame retardant and are available in a 65A, 80A and 50D hardness.They can be used in both Liquid Molding applications (i.e. parts, gaskets, coatings) and electrical 

Hapflex - 565 FR - Hapco - PU Rubber - Casting - Gaskets - Knowde

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Hapflex™ 565 FR

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