Project: Cozy4   -  
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Builder Name:Preston Kavanagh   -  
Project:   Cozy - Mark IV   -   VIEW REPORTS
Total Hours:4433.6
Total Flight Time:
Total Expense:$33393.25
Start/Last Date:Sep 01, 2003 - No Finish Date
Engine:IO-360-A3B6D
Propeller:Hertzler Silver Bullet 66 x 78
Panel:Garmin G3X + ipad
 
Friendly URL: https://eaabuilderslog.org?s=Cozy4

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Dec 31, 2019     Dump & Run , Cory Bird pt 2 - (88 hours) Category: C25 Paint
See prior entry for process description. After the 2nd coat of an epoxy wipe (West Systems) I noticed a lot of super small fish eyes coming through. The reason appears to be denatured alcohol. Per Rachael Geerts | Composite Materials Engineer Gougeon Brothers, Inc:

"Denatured alcohol can cause fish eyes to appear in the epoxy which is why we suggest using isopropyl alcohol instead. Also you can use TSP but you should let the surface sit overnight to make sure it has all evaporated off before applying the epoxy if you want to use it. Instead of TSP you can sand the surface and wipe with acetone or isopropyl alcohol or if the surface underneath is also epoxy you can wash with water and a scotch-brite pad.

Luckily, Amazon's aviation department has isopropyl - 12 pint bottles for $25 (insert joke about the price of other alcohols): https://www.amazon.com/Mountain-Falls-Isopropyl-Antiseptic-Technical/dp/B0793KYR9W

This entry trues up the hours required for the finishing work pre-primer.

Gear Leg cover 10 hours
Canard 15 hours
Right wing & rudder 35 hours
Left Wing & Rudder 30 hours
Fuselage bottom 20 hours
Fuselage top 40 hours
Control surfaces 20 hours
Canopy in & out 10 hours
Total PK time 180 hours
Chad recorded time 8 hours
Less prior entry -100 hours
This entry 88 hours
 


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