Adhetron EP 3333 Military-Grade Two-Component Epoxy 1kg

Adhetron EP 3333 is an unfilled, two-component, epoxy-based industrial adhesive. According to the official technical description, the product is offered in different viscosity options, mixed at a 1:1 weight ratio, and can be cured either at room temperature or with heat. Thanks to the polar character of its resin structure, it provides good flow and adhesion on metal and plastic surfaces, making it stand out in potting and assembly-focused applications. Low shrinkage and resistance to moisture, solvents, and acids complete the product’s core performance profile.

Technical Structure and Key Properties of EP 3333
This industrial adhesive is epoxy-based and is characterized after mixing by a viscosity of 25,000 mPas, an amber color, and a density of approximately 1.05 g/cm³. Its 4-hour pot life at 25°C provides application flexibility for controlled dispensing and medium-duration assembly operations. The unfilled structure of the product contributes to more consistent flow behavior, especially in potting processes and enclosed geometries. According to the official brand information, Adhetron is identified as originating from Connecticut, USA, and the products are offered under the Pulsar Chem. Industry and Trade Co. INC. brand. Within this technical framework, EP 3333 serves as an industrial adhesive suitable for both bonding and protective filling purposes.

Curing and Strength Profile
According to the official TDS data, the product can be cured in 16 hours at 25°C, 2 hours 30 minutes at 75°C, 1 hour 30 minutes at 100°C, 20 minutes at 150°C, and 5 minutes at 200°C. For maximum chemical and thermal resistance, a 2-hour post-cure at 100°C is recommended. In its cured state, the temperature resistance is given as -65°C to +150°C, Shore D hardness as 75–85, and water absorption as below 0.59%. On the mechanical side, lap shear strength is stated as 15 MPa on aluminum, 10 MPa on copper, and 19.3 MPa on steel. The fact that the product is specified as compliant with the MIL-A-14042 military specification provides an important reference for applications with technical compliance expectations.

Application Method and Surface Compatibility
Before application, surfaces must be cleaned of dust, oil, and other contaminants. It is recommended that components A and B be homogenized separately, then mixed in the correct ratio for at least 2 minutes, and that the mixture be applied within its pot life. The manufacturer states that this industrial adhesive provides good flow and adhesion on various substrates, including metal and plastic, and is particularly suitable for plugger and switch potting applications. Its 12-month shelf life at room temperature in unopened original packaging also provides a practical advantage for maintenance and inventory planning.

Applications and Key Advantages of EP 3333
The clearest application areas for EP 3333 are electrical and electronic assembly, connector and switch potting applications, protective filling processes, and assembly systems involving multiple materials. It can be used in control equipment, fastening elements, and general industrial assembly lines where metal and plastic parts are combined. Its key advantages include low shrinkage, resistance to chemical agents, different curing options, and compatibility with multiple surfaces. On the brand side, Adhetron is seen to offer solutions for sectors such as electronics, automotive, aerospace, lighting, and energy, which reinforces the broader product family framework supporting the product’s industry compatibility. As a result, EP 3333 is a well-balanced industrial adhesive solution for applications that require both durable bonding and potting performance.