Resin Designs TechFilm is a product line consisting of high-performance, partially cured epoxy adhesive films. These specialized film adhesives are designed as alternatives to two-part liquid epoxies. Techfilm advantages include clean, precise bond thickness and borders, low and high-temperature resiliency, and harsh environmental conditions resistance. 

An important question arises: what makes these films different than opting for traditional adhesive coatings? Let's review the unique strengths of TechFilm adhesives and discuss how to best implement their unique application process.

Epoxy chemistry is certainly not new, and this technology has proven itself across a wide range of industries and applications. Epoxies have demonstrated their value due to desirable characteristics, such as:

• Chemical and environmental resistance 
• Adhesion to a wide variety of substrates 
• Excellent peel and shear strength 
• Customizable open and curing times 
• Temperature resistance 

There are, however, challenges associated with the use of liquid, two-component epoxies. They can often require expensive and complex application equipment with precise mix ratio control. Liquid epoxies can also require fairly long curing times, making their use in higher volume circumstances less than ideal. Other than that, they can also be just plain messy! 

In order to address some of these weaknesses of liquid epoxies, an alternative approach is available in the form of B-stage epoxy films.

Millimeter-wave (mmWave) radar technology has emerged as an accurate and cost-effective approach to motion sensing and control.  Resin Designs’ TechFilm B-Stage Epoxies (electrically conductive and structural) have been enhancing the performance of these devices.  With their precise bond line thickness and placement accuracy, the B-stage epoxy films play critical roll in ground plane formation and adhesion of patch antenna to power boards.   The technology has been front and center in the automotive arena from basic safety innovations like back up and side sensing devices to full autonomous driving development. As mmWave devices increase in number within an automobile, a number of key factors are driving development including:

B-stage epoxy films for clean reliable bonding/thermal and electrical conductivity

Most of us are familiar with epoxy adhesives and coatings, especially those of us within the electronics and medical device industries. We have all seen and often used two-component liquid epoxies. They are provided in syringes or pails for dispensing as adhesives, sealants, gaskets, and coatings. There is, however, a lesser known relative that can be cleaner, more consistent, environmentally friendly, and capable of unique properties such as thermal and electrical conductivity. It is known as B-stage epoxy film.