Lenses typically separate after soaking in acetone for 10 to 60 minutes.  Debonding time is a function of surface area. Plano surfaces will require more time than surfaces with only slight edge contact, therefore annular ring designs of the mounting block are most efficient. Relief grooves or slots in the metal block may also be used for promoting the deblocking process by allowing the solution to come in contact with more of the adhesive.

Lenses may also be debonded just by heating between 80 and 100° C. After separation, the components and tools are cleaned in the detergent/water solution.

Shelf life of the liquid is at least 6 months at room temperature if stored in the original container away from UV light. Prolonged skin contact should be avoided and affected areas should be washed with soap and water. Avoid prolonged vapor inhalation and use in a well ventilated area.

             Typical Properties of NBA 107

                     Solids :                       100%
                      Viscosity at 25° C:      350cps
    Refractive Index

                   of Cured Polymer:      1.51
                     Elongation at Failure   5%  

                                  Modulus (psi)              800               

                                 Tensile Strength (psi)    78               

                  Hardness - Shore D:     15

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