Balance mechanical strength and flexibility with working temperatures below 125°C degrees
Two-part urethane structural adhesives are different from one-part moisture-curing urethane sealants. Urethane structural adhesives are two-part formulations that react when mixed and do not require moisture to cure. They are relatively flexible when cured and therefore tend to have excellent impact and vibration resistance. Urethane structural adhesives bond well to most plastics, wood, concrete and rubber, but they tend to have reduced resistance to solvents and high temperatures. The combination of flexibility and the ability to form strong bonds to a variety of substrates makes two-component urethane structural adhesives an excellent choice for bonding dissimilar materials.
When using for potting application, urethane and polyurethane potting compounds for electronics balance mechanical strength and flexibility with working temperatures below 125°C degrees. This means they sit between silicone and epoxy potting compounds, offering a cost-effective alternative to other formulations in low temperature settings where flexibility is required.