Thermal transfer for modules. Dow DOWSIL SE 4422 Thermally Conductive Adhesive Gray is a one-component, semi-flowable adhesive designed to provide efficient thermal transfer for home appliance devices and the cooling of electronic modules. It has good adhesion and a fast tack-free time.
Cure and by-product. SE 4422 is a single-component, moisture-cure silicone adhesive that cures into a durable, low-stress elastomer with a noncorrosive by-product. It is specifically designed to remove heat from electronic devices, allowing them to operate more efficiently and improving reliability over the device's lifetime.
Verified properties. Distributor technical data lists SE 4422 as gray, with a thermal conductivity of around 0.9 W/mK, a tensile strength near 5.1 MPa (about 740 psi), a specific gravity of the cured material of around 2.2, and roughly 99.4% nonvolatile content. It is a UL 94 V-1-recognized thermally conductive filler with an operating range of approximately -45 to 200°C.
Handling notes. It provides unprimed adhesion to a variety of reactive metals, glass, ceramics, laminates, and plastics. It is not recommended for highly confined or deep-section curing, with a rate of roughly 0.25 inches per 7 days; most physical properties develop within 4 to 7 hours. Review the product and Safety Data Sheets before use.
Recommended For
Cooling of electronic modules
Home appliance devices
Bonding with efficient thermal transfer
Applications needing unprimed adhesion to metals and plastics
Service temperature: ~-45 to 200°C (distributor data)
Container size: 330 mL cartridge
Primary Industries
Home appliance manufacturing
Electronics and module manufacturing
Consumer electronics
Industrial electronics
Standards and Certifications
UL 94 V-1 recognized (per distributor data; confirm current listing)
FAQs
What is DOWSIL SE 4422 used for?
It is a one-part, semi-flowable, thermally conductive silicone adhesive designed to provide efficient thermal transfer for home appliances and the cooling of electronic modules. It bonds components while acting as a thermal bridge, moving heat away from the device for cooler, more reliable operation.
How thermally conductive is SE 4422?
Distributor data lists a thermal conductivity of around 0.9 W/mK, which conducts heat better than unfilled silicone. It also provides good adhesion and, per distributor data, is UL 94 V-1 recognized. Confirm the exact figures and current listing for your grade against the technical data sheet before design use.
How does it cure, and is the by-product corrosive?
SE 4422 is a single-component, moisture-cure adhesive that cures into a durable, low-stress elastomer with a noncorrosive by-product, which is helpful around sensitive metals and electronics. Because moisture drives the cure, deep or highly confined sections are not recommended, as they cure much more slowly.
What can SE 4422 bond to?
Distributor data indicate that it provides unprimed adhesion to a variety of reactive metals, glass, ceramics, laminates, and plastics, so it bonds many common electronic substrates without a separate primer. For demanding or unusual surfaces, verify adhesion for your specific materials before committing to production.
How long does it take to reach full properties?
Distributor data notes that more than 90% of the adhesive's full physical properties should be attained within about 4 to 7 hours, while deep-section cure is slow (roughly 0.25 inch per 7 days). Plan handling times accordingly and consult the technical data sheet for your section thickness.
