Trial #0
Ways to clean materials sensitive to water
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This is a call to any and all who may enlighten us as to the best way(s) to clean materials that are sensitive to water. At Hughes ELCAN, we manufacture many opto-mechanical devices which use a variety of different materials. We are looking for a system that will clean lenses with stain sensitive approaching 51, 52, 53. A few of these are listed in the chart below:
Description Acidic Classification
FK 51 51
SK 10 52
SK 15 52
SK 16 52
BaSF 50 53
KZFSN4 53
QUESTION #: 1
SUBSTRATE MATERIAL: Glass
RESPONSE/ANSWER: In 1998, the Massachusetts Toxics Use Reduction Institute (TURI) will publish the results of the tests conducted at the Institutes Surface Cleaning Laboratory (SCL) in a searchable database/spreadsheet format. This should make alternative cleaner selection faster and easier. Here are the results of your query, based on the information supplied:
The best we can offer are SCL’s test results on the substrate of optical lenses (all proprietary manufacturing information is deleted from the database). They are as follows:
| SCL #
|
Substrate
|
Contaminant
|
Mechanism
|
Cleaner
|
| 95‑409‑01‑2*
|
GLASS
|
WAX
|
ULTRASONICS
|
OAKITE
|
| 95‑409‑02‑2
|
GLASS
|
WAX
|
IMMERSION
|
ALCONOX
|
| 95‑409‑03‑2
|
GLASS
|
WAX
|
ULTRASONICS
|
ALCONOX
|
| 95‑409‑03‑2
|
GLASS
|
WAX
|
ULTRASONICS
|
OAKITE
|
| 96‑435‑01‑8
|
GLASS
|
ROSIN
|
IMMERSION
|
OCCIDENTAL CHEMICAL
|
| 97‑550‑01‑3
|
GLASS
|
GREASE
|
SPRAY
|
ALCONOX
|
| 97‑550‑01‑3
|
GLASS
|
OXIDES
|
ULTRASONICS
|
ALCONOX
|
| 97‑551‑01‑2
|
GLASS
|
PITCH
|
ULTRASONICS
|
INTERNATIONAL PRODUCTS
|
| 97‑551‑01‑2
|
GLASS
|
PITCH
|
ULTRASONICS
|
LPS
|
| 97‑551‑01‑2
|
GLASS
|
PITCH
|
ULTRASONICS
|
MACDERMID
|
| 97‑551‑01‑2
|
GLASS
|
PITCH
|
ULTRASONICS
|
OAKITE
|
| 97‑551‑01‑2
|
GLASS
|
POLISH
|
ULTRASONICS
|
INTERNATIONAL PRODUCTS
|
| 97‑551‑01‑2
|
GLASS
|
POLISH
|
ULTRASONICS
|
LPS
|
| 97‑551‑01‑2
|
GLASS
|
POLISH
|
ULTRASONICS
|
MACDERMID
|
| 97‑551‑01‑2
|
GLASS
|
POLISH
|
ULTRASONICS
|
OAKITE
|
Cleaning projects vary from case-to-case. The database does not have a searchable category for ‘water-sensitive materials’. To obtain more detailed information about any of the listed trials, have the SCL # ready when contacting the lab at (978)934-3133.
ADDENDUM: This question and response have been submitted to Precision Cleaning Magazine for publication in the February issue.
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