First Contact Brush and Pour Application Procedure

Document #:

LIGO-E1000079-v9

Document type:

E - Engineering documents

Abstract:

The First Contact Spray Application, E1300017 is the approved method of cleaning suspended optics with first contact. This pour or brush procedure can continue to be used for non-suspended optics, and in special cases suspended ones. Reference the General Optics Cleaning Procedure or contact COC / SYS prior to using this procedure to clean optics.

Using FC for the first time: If you have a delicate material like calcite, OR a gold coated optic, try the first contact on a sample piece before the real thing. It has been known to peel off gold coatings that are poorly adhered to the surface.

Compatibility of First Contact and Common Solvents:
The clear and red polymer solvents and their thinners ARE NOT compatible, do not mix them together in wet or dry form. Isopropanol and Methanol ARE NOT compatible with first contact, do not mix them in wet OR dry form. Acetone IS compatible with first contact and can be used to clean up dry FC or FC brushes.

Files in Document:

• E1000079 v9 First Contact Brush and Pour Procedure.pdf (941.7 kB)

Other Files:

• E1000079 v9 First Contact Brush and Pour Procedure.doc (1.2 MB)
• First Contact Labels.docx (88.1 kB)

Topics:

• Core Optics
• System Engineering

Authors:

• Margot Hennig
• GariLynn Billingsley
• Liyuan Zhang

Keywords:

first contact pour brush

Notes and Changes:

v9 update to include update on (voluntary) respirator. Signatures / DCN is now via the DCC page for this document.

v8 refer to DCN E1800212.

version 7 has been updated to remove the removal procedure. Going forward the removal procedure will only be in E1300017.

version 6 was updated to include the approval of the Spray Application, E1300017.

Related Documents:

• LIGO-T0900438: LIGO Vacuum Qualification of First Contact™
• LIGO-T1000137: Drag Wiping and First Contact
• LIGO-E1100439: General Optics Cleaning Procedure
• LIGO-T1000424: First Contact Application - TES Air Monitoring Report - 6.2.10
• LIGO-T1000425: Hazard analysis for use of First Contact(TM) Optical Cleaner

Referenced by:

• LIGO-E990035: OBSOLETE - Large Optics and COC`s Cleaning Procedures, Rev. C
• LIGO-T1200416-v2: First Contact and its Effect on Pitch of Optics
• LIGO-T1000137-v3: Drag Wiping and First Contact
• LIGO-E1200326-v2: First Contact cleaning of water spots or water soluble contamination
• LIGO-E1400472-v3: Test Mass In Situ Cleaning Procedure
• LIGO-E1400363: Collection of Documents associated with cleaning optics for advanced LIGO
• LIGO-E1300017-v8: First Contact Spray Application & Removal Procedure
• LIGO-E1100439-v7: General Optics Cleaning Procedure
• LIGO-E1201035-v25: aLIGO Chamber Entry & Exit Procedures