PROCESS CHECK REPORT

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Lawrence Parker
5 years ago
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1 Company: Process Title Process Check Report Ref. No: Raytheon Process Auditor(s): Date Of Process Audit: The Application Of Cold Curing Epoxide Finish Summary: Conclusion: Distribution: Auditor: Approved By: Approved For Distribution: RCJI/QA/SC178(M).XLS Issue 1 1

2 Invoked Documents Listing 1. Process Specifications Reference No. BAEP 3505 Title The Application Of Cold Curing Epoxide Finish Issue 2 Amdt 1 dated Nov '77 2. Quality Assurance Instructions To Suppliers Reference No. Title Issue 3. Other Technical Documents Invoked Reference No. Title Issue 4. General RCJI/QA/SC178(M).XLS Issue 1 2

3 Details Of Check Is BAEP 3505 available and at the correct issue. Result / Remarks Action Required Is there an internal procedure for BAEP 3505, if so,what is its reference, issue status and date of issue. Is the operation for painting to this specification incorporated into the planning. Are history sheets available and fully endorsed. Are the areas or parts finished to this specification identified on the drawing as 'TZ' and the colour / texture stated Have the surfaces to which the epoxide finish are to be applied previously been processed to BAEP 3510 Method 1 or BAEP 3512 Method 1,2 or 3 respectively Is the same manufacturer used for all coats of paint system. Have the surfaces been primer painted or in the case of white topping, primed and ground coated. Is the epoxide finish applied within 2 to 24 hrs of the application of the etching primer. If the above has not been complied with, has flatting taken place and then a refresher coat to BAEP 3512 applied. RCJI/QA/SC178(M).XLS Issue 1 3

4 Has 4 hours drying time elappsed prior to the application of the epoxide finish. Are all marterials used within the manufacturers shelf life (12 months from the date of delivery) Is a pot life given to the mixed paint (8hrs at o C or 4hrs at o C) Is the mixed material allowed to stand for 30 minutes before use and stirred immediately before filling the spray gun. Is the application conditions o C and 75% RH. temperature indicator humidity meter Details Of Check Result / Remarks Action Required Has 4 hours drying time elappsed prior to the application of the epoxide finish. Has the epoxide finish been applied within 48 hrs of the epoxide primer. If the above has not been complied with, has flatting taken place and then a refresher coat of epoxide primer applied. RCJI/QA/SC178(M).XLS Issue 1 4

5 Is the approximate thickness 25 microns. Is the curing cycle 1 of the following. 1) 18 o C and < 75%RH for 72 hrs 2) 18 o C and < 75%RH for 24 hrs & then 13 o C and < 70%RH for 144 hrs 3) 15.5 o C and < 75%RH for 168 hrs If further painting is required i.e. emblems, identifications or service markings. Is thiscarried out withinn 2 weeks of the application of the finish Is the thickness of the coatings as follows: 1) 43 microns when finish is applied over epoxide primer 2) 38 microns when finish is applied over etching primer instrument used to validate the paint thickness Details Of Check Result / Remarks Action Required RCJI/QA/SC178(M).XLS Issue 1 5

6 Is the viscosity of the paints as follows: 1 to 17 eccept 5 (28-32 secs) 5 (35-44secs) Viscosity Cup Details Of Check Result / Remarks Action Required Are the paints utilised 1 of the following in the order of base, activator. (Thinners used is always ): 1) F431-Line, F ) F , F ) F431-Line, F ) F , F ) F , F292-5 or Base Material, Activator and Thinner - Thinners used is always T17 (TH84): 6) TT16/Silver TN186, 40 7) TT16/gloss white, 2 8) TT16/gloss colours except black & silver, 2 9) TT16/gloss black, 13 10) TT16 varnish (transparent, 6 11) TT16 semi gloss white and colours except black, 20 12) TT16 semi gloss black, 21 13) TT16 matt black, 15 14) TT16 matt colours except black and silver, 14 or Base Material, Activator and Thinner - Thinners used is always TSL 5373: 15) SL5459, CSH ) 5SL5459, CSL 6201A 17) 2SL5459, CSL 6201A RCJI/QA/SC178(M).XLS Issue 1 6

10P20-44MNF High Solids Epoxy Primer

10P20-44MNF High Solids Epoxy Primer Technical Data Sheet Product Group High solids epoxy primer Characteristics Product Information A high solids urethane compatible, Skydrol resistant primer for application to aircraft exterior surfaces.