DIGITAL OPTICAL MODULE SOFT RTV GEL

07-5641

DIGITAL OPTICAL MODULE SOFT RTV GEL

ICECUBE PROJECT

Non-UW-Madison users contact: Vendor Representative

January 1, 2007, through December 31, 2007, with automatic renewal extensions to December 31, 2009, unless amended, cancelled or rebid. The University reserves the right to extend beyond the Contract Term if deemed to be in the best interest of the University.

315-25

Invoices shall reflect contract pricing.

Contractor will provide for return of items ordered in error for up to 30 calendar days from receipt with the University paying only the return shipping costs.

12 months from ship date

Will notify ordering department within 24 hours of order/release.

Pricing available only to:  University of Wisconsin System campuses

Digital Optical Module Soft RTV Gel
 (80 lb. kits)

$36.50/lb.  (for orders shipping prior to 06/30/08)

$39.42/lb.  (for orders shipping after 07/01/08)

SPECIFICATIONS

SCOPE:  The following specifications represent minimum acceptable requirements of a soft RTV Gel required to integrate Digital Optical Modules for the IceCube Antarctic Neutrino Telescope.

1.0 Material Characteristics.

1.1 Component Parts Prior to Mixing and Cure.

1. The GEL components must be water-clear and colorless.
2. Components must be free of particulates greater than 100 microns.
3. Viscosity must be:
1. Suitable for pouring into a vessel.
2. Easily mixed.
4. Must require no thinning.
5. Solvents.
1. Must recommend safe materials for clean up if Atmex-CCR Silicone Remover is not appropriate.
6. Shelf life of components.
1. Must retain characteristics for a minimum of six months withoutdegradation.
2. Sensitivity, shelf life must not be adversely effected by:
1. Light                                                                
2. Temperature                                                     
3. Humidity                                                          
4. Agitation                                                          

1. The GEL must be water-clear and colorless.
2. UV Optical Transmission Rating:
   The optical character of the cured GEL must pass a weighted transmissivity judgment in a Spectrophotometer. The tabulated measurements in the example below were conducted in a 4.5ml, 1cm2, cross section Quartz Cuvette.
3. For purposes of Analysis and Compliance a Methacrylate cuvette may be used. Batch to batch statistics must be retained and judged with a lower control limit starting at the weighted sum value of 71 consistent with six sigma rules.
4. The Vendor must provide an example ASCII data file as output by the vendor’s spectrophotometer. The University of Wisconsin will provide  a Windows based software program for the data analysis.
5. Index of refraction of cured material must be between 1.4 and 1.5 at -70ºC and 20ºC.
6. The RTV must not scintillate or fluoresce when exposed to UV light over over the wavelength interval 275nm to 650nm.
7. The cured GEL stiffness must be measured with a precision universal penetrometer equipped with a 19.5 gram weight and a spherical tip of diameter ¼”. 
8. The penetration depth must be in the range: (2mm to 6mm). 
9. The GEL must not separate, delaminate, or crack post cure when subjected to ½ atmosphere of N2.
10. The GEL must be chemically inert, non-corrosive, and safe in the presence of electronics.
11. The GEL must be stable, (does not re-flow post cure). 
12.  The GEL must not shrink more than 0.1% during cure.
13. The coefficient of thermal expansion must be less than 405 um/mC.

2.0 Shipping and Packaging                                 

1. Viscosity of each component (cps).
2. Visual inspection (Pass/Fail).
3. Gel Time (30-60min).&     
4. Penetration (mm).
5. Percent Weighted Transmission (71min).
6. Refractive Index (1.4-1.5).
7. Non-Fluorescence (Pass/Fail).
8. Date of Manufacture (Report).
   

1. None or minimum degassing requirements.
2. Room temperature set time less than twelve hours. The GEL must have achieved 95% of final hardness as measured by penetration test.
   
3. Room temperature cure must be complete in forty eight hours.
4. Must provide deep section cure.
5. Mixing ratio 1:1 parts A&B, must be consistent with desired characteristics and packaging.
   1. The RTV must adhere to clean glass surfaces without the use of primers.

4.0 Business Relationship

1. Upon request supplier must demonstrate credible QA and process documentation.
2. Upon request must agree to site visits, and process audits.
3. Upon request must produce data to support all requirements.

Revision History