“Can you suggest a medium-viscosity adhesive that is well suited for metal-to-metal bonding?”

“We are currently using Dymax 1184-M, M-B, and V for most applications. However, we’ve found out that they are not well suited for bonding metal to metal, partly because the cured hardness is too high and partly because the UV light cannot penetrate through metal seams.”

For metal-to-metal joints I would suggest looking at traditional epoxies rather than light-curable acrylates.

Epotec and Master Bond Inc. offer epoxies in medical-grade versions. There is an old article that describes the impact of Sterrad low-temperature hydrogen-peroxide-gas plasma on several adhesives. The article, along with the results, can be viewed at: http://www.mddionline.com/article/compatibility-medical-devices-and-materials-low-temperature-hydrogen-peroxide-gas-plasma.

According to the results in the article, some two-part epoxies from Epotec have a moderate compatibility with Sterrad.

Adhesives, Medical 1184-M Series, Light Curable Adhesive, light-curable adhesives, medical adhesives, medical device adhesives, Medical-Grade, Medical-Grade Adhesive, metal bonding, metal to metal bonding

“We use 1184-M-T, 1184-M-B, and 1184-M-VT epoxies for various uses. What is a good solvent that can take apart lenses glued together using 1184-M-T adhesive?”

If your lenses are made of glass you have several options, as glass is resistant to the solvent removal methods suggested below:

There are a few chemicals that will dissolve or swell 1184-M-T or any other light-curable acrylate, such as Dichloromethane, MEK, or Acetone. It may take some time for the solvent to migrate all the way in between the laminate, so the time depends on the size of your parts. A more gentile method is to soak the lenses in isopropyl alcohol (IPA) or even use warm IPA with the help of an ultra-sonic cleaner. I would also suggest this method if your lenses are made of plastic since the solvents mentioned first will also damage it.

Adhesives 1184-M Series, 1184-M-T, adhesive removal, bonding lenses, Light Curable Adhesive, light-curable adhesives, UV/Visible Light Curing Adhesive