Adhetron EL-Tech 255Si Two-Component Silicone-Based Adhesive Filled with an Aluminum and Silver Blend is a conductive silicone system intended for EMI\/RF shielding or electrical grounding needs in electrical enclosures. Thanks to its two-component, solvent-free structure, it is positioned as an industrial adhesive that can be applied in a controlled manner in production processes, aiming for a flexible bond line and a sealing effect. In fillet gap-filling and seam-sealing applications, its self-leveling behavior helps form a more uniform layer on the surface. It is a practical solution for engineering teams seeking repeatable results in electronic cabinets, lid joints, and EMI-related details.<\/p>\n
This product is a two-component, silicone-based flexible adhesive and sealing material containing a blend of silver-coated aluminum and silver fillers. After curing, the silicone matrix provides an elastic structure that helps the bond remain flexible under vibration and differences in thermal expansion. The conductive filler structure is designed to support continuity of EMI shielding and grounding contact. By bonding to metal, plastic, composite, and silicone surfaces, the product aims to meet industrial adhesive needs across different assembly scenarios with a single system.<\/p>\n
A Shore A hardness range of 20\u201330 is specified for the cured material, indicating a soft and flexible sealing line character. The operating temperature range is stated as -55 \u00b0C to +150 \u00b0C, providing a broad window for use in electrical enclosures and equipment exposed to environmental conditions. On the electrical side, volume resistivity is given as 0.020 \u03a9\u00b7cm, and thermal conductivity is specified at 2 W\/mK, allowing conductivity and heat-management expectations to be handled within the same material. A shrinkage value of less than 1% and a weight loss of 0.25% after 1 week at 150 \u00b0C are stated, providing an indication of dimensional stability and aging behavior.<\/p>\n
Because the mix ratio is defined as 2:1 by both weight and volume, controlled mixing with dispensing equipment is easier. With a stated pot life of 60 minutes, the post-mix application plan should be designed to stay within this time limit. The system can cure in approximately 24 hours at room temperature, and it can also be processed with an accelerated cure profile such as 90 minutes at 65 \u00b0C to shorten process time. The product is described as applicable using pressure\/time or positive-displacement dispensing equipment, an approach that supports repeatability in mass production.<\/p>\n
Cleaning surfaces of oil, dust, and oxide residues is a critical step to maintain continuity of conductive contact. It is stated that the product can be used without a primer, which can simplify preparation steps and reduce process cost. The self-leveling property helps create a smoother fillet along seams and joint lines while making it easier to control the application via dispensing. Because good resistance to galvanic corrosion on aluminum substrates is stated, it can be advantageous in metal enclosures where long-term durability is required.<\/p>\n
EL-Tech 255Si can be considered for lid joints and seam-seal applications in electrical enclosures where EMI\/RF shielding and grounding continuity are important. Use examples are given for platforms exposed to vibration and environmental loads such as man-portable electronics, radar and communications systems, EMI ventilation components, military ground vehicles, and field shelters. In telecom infrastructure cabinets, industrial control panels, and enclosures containing sensitive electronics, it offers an industrial adhesive approach for teams that want to manage both sealing and conductive contact requirements together. Its solvent-free, two-component silicone structure provides a strong alternative for designs seeking a balance of flexibility, application control, and long-term performance expectations.<\/p>\n","protected":false},"excerpt":{"rendered":"
A two-component, silicone-based conductive industrial adhesive filled with an aluminum\u2013silver blend is used in electrical enclosures for EMI\/RF shielding, grounding contact, and seam sealing. Its solvent-free, flexible structure allows controlled application and helps the bond remain stable under vibration and differences in thermal expansion.<\/p>\n","protected":false},"featured_media":5125,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[324],"product_cat":[295,290],"product_tag":[],"class_list":["post-4269","product","type-product","status-publish","has-post-thumbnail","product_brand-adhetron","product_cat-silicone-based-adhesives","product_cat-two-component-adhesives","first","instock","product-type-variable","has-default-attributes"],"_links":{"self":[{"href":"https:\/\/utmteknik.com\/en\/wp-json\/wp\/v2\/product\/4269","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/utmteknik.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/utmteknik.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/utmteknik.com\/en\/wp-json\/wp\/v2\/comments?post=4269"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/utmteknik.com\/en\/wp-json\/wp\/v2\/media\/5125"}],"wp:attachment":[{"href":"https:\/\/utmteknik.com\/en\/wp-json\/wp\/v2\/media?parent=4269"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/utmteknik.com\/en\/wp-json\/wp\/v2\/product_brand?post=4269"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/utmteknik.com\/en\/wp-json\/wp\/v2\/product_cat?post=4269"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/utmteknik.com\/en\/wp-json\/wp\/v2\/product_tag?post=4269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}