Ultrasonic Removal of Contaminants from BK-7 Glass Using VALTRON® SP2275 - Valtech Corporation
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Compatibility Testing of Polarized Polycarbonate Lenses with VALTRON® Detergents

Ultrasonic Removal of DYKEM Layout Fluid from Ceramic Substrates Using VALTRON® Detergents for Ceramics

Ultrasonic Removal of Polishing Compounds from Medical Cobalt Chrome Femoral and Titanium Tibia Production Parts Using VALTRON® Detergents

Ultrasonic Removal of Contaminants from BK-7 Glass Using VALTRON® SP2275

Effectiveness of Ultrasonic Cleaning of Aluminum Base Plates and Top Covers in the Removal of Particles Using VALTRON® DP155

Etching of Silicon Wafers by Soaking Using VALTRON® Alkaline Detergents

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De-bonding and Removal of Wax from Glass Slides using VALTRON® SP2200 Alkaline Detergent

Ultrasonic Removal of AquaBond® 55 and AquaBond® 85 Mounting Adhesives from Glass Slides Using VALTRON® Detergents

De-bonding of VALTRON® AD4110-A / AD4105-B Epoxy System from Glass Plates and Steel Wire Saw Fixture

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Ultrasonic Removal of Contaminants from BK-7
Glass Using Valtron SP2275

I. Purpose

The purpose of the test was to evaluate the efficiency of the ultrasonic removal of contaminants from BK-7 glass using VALTRON® SP2275 neutral detergent.

 

II. Parameters of the Experiment

  1. Conditioning of the Substrates:
    Five (5) pieces of degreased BK-7 glass with contaminants were submitted by the customer for evaluation.  No further conditioning was necessary.
  2. Preparation of Detergent Solutions:
    2% VALTRON® SP2275 neutral detergent

    200mL of the above detergent solution was prepared in a 250mL stainless steel beaker. The detergent solution was degassed for 15 minutes at a temperature of 120°F/49°C in a Blackstone Ney® ultrasonic unit operating at 40 kHz and 100% power.

 

III. The Experiment

  1. 200mL of 2% VALTRON® SP2275 was prepared in a 250mL stainless steel beaker. The beaker was placed into a Blackstone Ney® ultrasonic unit operating at 40 kHz and 100% power and degassed for 15 minutes at 120°F/49°C.
  2. A BK-7 glass substrate was suspended in the detergent solution and ultrasonically washed for 2 minutes at 120˚F/49˚C.
  3. The substrate was removed from the ultrasonic wash tank and given a 15-second spray rinse of low-pressure deionized water at room temperature.
  4. Next, the substrate was vertically suspended in deionized water and ultrasonically rinsed for 2 minutes at 120°F/49°C.
  5. The substrate was removed from the ultrasonic rinse tank and given a 15-second spray rinse of low-pressure deionized water at room temperature.
  6. The substrate was allowed to dry and then examined under a high-intensity light source for any microcrazing.
  7. Then, the substrate was allowed to air dry and inspected under the 30X magnification of a Leica® Stereo Zoom 4 microscope for any remaining contamination.
  8. The results are summarized in Table 1.

 

IV. Results

Table 1: Compatibility Testing of Polarized Polycarbonate Lenses with VALTRON Detergents

VALTRON Detergent Concentration (vol. %) Ultrasonic Wash Ultrasonic Rinse Removal Rate (%)
Time (min.) Temp. (°F/°C) Time (min.) Temp. (°F/°C)
SP2275 2 2 120/49 2 120/49 100

 

V. Conclusion

The contamination was easily removed from the BK-7 glass using a 2% solution of VALTRON® SP2275 when ultrasonically washed for 2 minutes at 120°F/49°C.

 

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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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