Ultrasonic Removal of AquaBond® 55 and AquaBond® 85 Mounting Adhesives from Glass Slides using VALTRON® Detergents - Valtech Corporation
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Ultrasonic Removal of AquaBond® 55 and AquaBond® 85 Mounting Adhesives from Glass Slides using Valtron Detergents

I. Purpose

The purpose of this test was to evaluate the efficiency of the removal of AquaBond® 55 and AquaBond® 85 mounting adhesives from glass slides using Valtron® detergents.  The adhesives are used for mounting glass substrates.


II. Parameters of the Experiment

  1. Preparation of various VALTRON® detergents:
    2% Valtron SP2200
    4% Valtron SP2200
    4% Valtron DP009
    1% Valtron DP94001
    2% Valtron DP94001
  2. Conditioning of the glass slides with AquaBond® mounting adhesives.
  3. Removal of adhesives by soaking in VALTRON® SP2200 and VALTRON® DP94001 detergents.        
  4. Removal of adhesives by ultrasonic cleaning with various VALTRON® detergents.                                                            


III. The Experiment

  1. Solutions of 2% Valtron® SP2200, 4% Valtron® SP2200, 4% Valtron® DP009, 1% Valtron® DP94001, and 2% Valtron® DP94001were prepared from their respective concentrates and deionized water.
  2. Several clean glass slides were conditioned with either AquaBond® 55 or AquaBond® 85 by heating the slides on a hotplate, then melting the selected mounting adhesive onto each slide.  The conditioned glass slides were allowed to cool for 15-30 minutes.
  3. The conditioned slides were placed into 100 mL of each Valtron® detergent solution at various temperatures, and soaked for a specified time.  The results are summarized in Table 1.
  4. The conditioned slides were ultrasonically washed in a Crest® Ultrasonic unit (132 kHz, 100% power) using 150 mL of the VALTRON® detergents preheated to desired temperatures and degassed for 15 minutes.  The slides were then rinsed ultrasonically for selected times in degassed deionized water at the desired temperatures.  After air drying, the slides were examined under a high-intensity light source for any residues remaining.  The results are recorded in Table 2.


IV. Results

Table 1: Removal of AquaBond® mounting adhesives 55 and 85 by soaking in VALTRON® detergents

AquaBond Adhesive Valtron Detergent Concentration (volume%) Temperature (°C) Soak Time (minutes) Residue Remaining
55 SP2200 2 50 5 Heavy
    2 60 5 Moderate
    2 70 5 None
55 SP2200 4 60 5 Moderate
85 SP2200 2 70 5 Heavy
    2 90 5 Moderate
    2 95 5 Moderate
85 SP2200 4 70 5 Heavy
85 DP94001 1 65 5 Heavy


Table 2: Ultrasonic treatment of glass slides to remove AquaBond® 55 and Aquabond® 85 using various VALTRON® detergents

Aquabond Mounting VALTRON detergent Concentration (% by volume) Ultrasonic Wash Time (Min) / Temp(°C) Ultrasonic Rinse Time (Min) / Temp(°C) Residue Remaining
55 SP2200 4 2 65 2 65 None
85 SP2200 4 2 65 2 65 Trace
    4 3 65 3 65 None
85 DP009 4 2 65 2 65 Slight
    4 3 65 3 65 Trace
85 DP94001 1 2 65 2 65 Slight
    1 3 65 3 65 None
    2 2 65 2 65 Trace


V. Conclusion

The AquaBond® 55 can be removed easily by soaking the glass slide in 2% VALTRON® SP2200 at 70°C for 5 minutes. The AquaBond® 85, however, requires a more aggressive treatment because of its higher melting point (AquaBond® 55 at 50-55°C and AquaBond® 85 at 85-105°C)*. The best method for removing AquaBond® 85 is to clean the samples ultrasonically at 65°C for 3 minutes using either 4% VALTRON® SP2200 or 1% VALTRON® DP94001. This ultrasonic cleaning method was also effective in removing the AquaBond® 55.


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*AquaBond® Product Data from AQUABOND Technologies, Camarillo, California.



Compatibility Testing of Lenses | Removal of DYKEM Layout Fluid | Removal of Polishing Compounds
Removal of Contaminants | Effectiveness of Ultrasonic Cleaning | Etching of Silicon Wafers | De-bonding of Silicon Wafers
De-bonding and Removal of Wax |Removal of AquaBond 55 & 85 | De-bonding of AD4110-A/AD4105-B


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