Henkel Corp. (Rocky Hill, CT) has released singlecomponent light- and moisture-curing silicone adhesives for use on medical devices that incorporate silicone materials or require flexible bond joints or coatings. The adhesives cure within 30 seconds on exposure to a suitable UV/visible light source. They eliminate part racking and allow immediate quality control testing. The adhesives provide high-bond strengths on silicone and plastics such as polycarbonate, and demonstrate tear strengths in excess of 50 pounds per inch and elongation of more than 140% in the cured state. They can be used on catheters, respiratory devices and connections, medical tubing, and tracheotomy devices.

Loctite® 5055™ is a low-viscosity, light yellow, transparent liquid that provides adhesion to polycarbonate and tensile strengths of nearly 1500 psi. Loctite® 5056™ provides heat and humidity resistance in its cured state. Loctite® 5240™ is a UV/visible light curing silicone that offers a secondary moisture cure that takes place in shadowed areas in 24 to 72 hours. It cures to depths of 0.75" and delivers a colorless bond line. All three silicones meet ISO-1093 biocompatibility requirements for medical device assembly.

For Free Info Click Here 

Topics:
Materials Medical Plastics Tubing/Extrusion/Molding

More From SAE Media Group

    Magazine cover
    Medical Design Briefs Magazine

    This article first appeared in the May, 2009 issue of Medical Design Briefs Magazine (Vol. 33 No. 5).

    Read more articles from this issue here.

    Read more articles from the archives here.