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News & Resources

The Effect of Infrared Spot Curing on the Cure Times of Silicone Materials for the Healthcare Industry

Utilized in a wide variety of adhesion applications — from urinary catheters to cardiac pacemakers — one-part condensation-cure adhesives have traditionally been the most commonly used silicone adhesives in the healthcare industry. Despite their acclaimed and proven effectiveness, the downside to using these adhesive systems is their long cure time (many hours or even days at room temperature) and inability to be accelerated with heat. Alternatively, using a two-part, addition-cure silicone adhesive — also known as a fast-cure adhesive — is often helpful or even necessary, depending on the application at hand. An adhesive is considered a fast-cure adhesive if it fully cures in less than 10 minutes using heat, or if it partially cures for handling in less than five minutes and fully cures at room temperature in eight hours. Fast cures as defined here are induced by bringing the adhesive into contact with heat, usually via an air-circulating oven.