Adhesive Film, Ablefilm® 561E Sheet and Preforms
NEDC offers many types of materials, including electrically insulating materials, thermally conductive materials, and electrically conductive materials. A brand that deals with all of those types of materials in adhesive bonding film form is Henkel Adhesive Films. These materials can be helpful in situations where complexity is accentuated by part size, part intricacy, and dissimilar substrates. Henkel’s Ablefilm® line can provide a creative, cost effective solution to problems that may arise in situations that are complicated by these factors. NEDC diecuts and lasercuts preforms for Ablefilm® materials.
Advantages to Using LOCTITE® ABLESTIK Bonding Films
There are generally two different types of materials that the Ablefilm® brand offers. One is the electrically conductive films, and the other is electrically insulating films. Of course, there are many different variations of Ablefilms available, some with more peel adhesion strength, or some being more thermally conducting than others. The advantages of Henkel Adhesive Bonding Films are numerous. They include a uniform bond line, consistent thickness throughout the bond, and a clean, neat film. Conventional adhesives can be problematic, considering they may cause flow issues such as air pockets. The materials below only focus on the LOCTITE® Ablestik brand. It is good to note that these epoxy films create a permanent bond. One of the big advantages of using Ablefilm® materials is the ease of use that they offer, i.e., cleaner, simpler, and many times, more effective. It is important to note that Ablefilm® materials often have extremely controlled thicknesses in order to accommodate uniform bonds that are consistent through the attachment.
Specifications to Think About When Choosing a Bonding Film?
Adhesive Films such as MIL-STD-883 Method 5011 is a common specification to look for when finding a bonding film. Henkel offers a few bonding films that meet this specification including Ablestik 5025E, Emerson & Cuming CF3350. In addition, one thing to watch out for is outgassing testing for materials such as NASA outgassing – TML (total mass loss), and CVCM (collectable volatile condesible mass).
What is MIL-STD-883 Method 5011? Why is it Important for Bonding Films?
MIL-STD-883 Method 5011 includes Type 1, and Type 2 Polymeric Adhesives for electrically conductive, and electrically insulative respectively. This standard includes testing of ionic content, pot life, filler content, and more. In addition, outgassing measurements are taken. As we have mentioned in blogs/posts past having MIL-SPEC materials is important to maintain good supply chain integrity over the longterm, and having reliable electronic packages.
Thermally, or Electrically Conductive Bonding Film?
Thermally Conductive Ablefilm® Bonding Films
Electrically Conductive Ablefilm® Bonding Films
heat sink for bonding film
heat sink for bonding film
Low Outgassing Ablefilms Electronic Bonding Adhesives
Per the ASTM E595 Outgassing standard, less than 1% TML is a passing grade, with CVCM at less than .1% is also passing. With that said, I wanted to highlight some especially low outgassing adhesive films that ABLESTIK ABLEFILM adhesives.
ABLESTIK 517- electrically isolating – TML% 0.07, CVCM% 0.01
ABLESTIK 5020K- electrically isolating – TML% 0.24, CVCM% 0.02
ABLESTIK ECF564AHF- electrically conductive, TML% 0.3, CVCM% 0.01
ABLESTIK 5025E- electrically conductive, TML% 0.3 CVCM% 0.06
More Information on Adhesive Bonding Films
Ablefilm® materials are quite versatile in their applications. For example, 5025E has many applications such as bonding circuit boards to heatsinks or bonding fluoropolymer circuits to other metal substrates. NEDC is able to provide diecut and lasercut preforms for the materials listed above. It is notable that the adhesive films listed above do require cure schedules for functional use; this can be found at their appropriate datasheets at the Henkel Adhesives website.
Lastly, storage conditions are very important for epoxy-based frozen materials. For this reason, NEDC is able to store, and ship under stringent temperature requirements. For more information regarding Ablefilm® products by Henkel or for a quotation on a converted part, please contact sales@nedc.com.