FWIW, A&P buddy who maintains heavies for a cargo fleet replied to my query thusly, " The Boeing spec is a polyurethane, and it still holds up only just so long when exposed to skydrol. The epoxy primer is BMS10-11 but I don't recall off the top of my head the spec number for the topcoat. At work we use Akzo Nobel Eclipse but last I heard Boeing was using a PPG product for factory paint jobs." -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Tan Geok Ang Sent: Wednesday, August 23, 2017 8:51 AM To: [log in to unmask] Subject: Re: [TN] Epoxy Paint Using high resistance potting epoxy as paint epoxy? ________________________________ From: Stadem, Richard D. <[log in to unmask]> Date: 23 August 2017 at 11:27:08 PM SGT To: [log in to unmask] <[log in to unmask]> Subject: Re: [TN] Epoxy Paint Be sure to consider the outgassing characteristics of whatever you use. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Douglas Pauls Sent: Wednesday, August 23, 2017 9:58 AM To: [log in to unmask] Subject: Re: [TN] Epoxy Paint Interesting. No, I am not tied to an epoxy. Will consider it. Thanks. Doug Pauls Principal Materials and Process Engineer Rockwell Collins On Wed, Aug 23, 2017 at 9:13 AM, McGlaughlin, Jeffrey A < [log in to unmask]> wrote: > Does it need to be epoxy or can you use a polyurethane? If you can go > to a polyurethane take a look at Imron(r). Properly applied the stuff > is bulletproof, even survives on hill climber frames. > > -----Original Message----- > From: TechNet [mailto:[log in to unmask]] On Behalf Of Douglas Pauls > Sent: Wednesday, August 23, 2017 9:16 AM > To: [log in to unmask] > Subject: Re: [TN] Epoxy Paint > > Message received from outside the Battelle network. Carefully examine > it before you open any links or attachments. > > Graham, > Those of us in the aerospace world have to live with two documents, > the FAA > DO-160 and an equivalent mil spec (either 883 or 810). Both have what > is called a fluid susceptibility test section. Depending on the > customer, there is a wide range of fluids that the material must be resistant to. > Our avionics assemblies can be anywhere in the plane, cockpit, > avionics bay, luggage bay, under the toilets, in the wings, up in the > tail, outside the aircraft. Can be anywhere. For hydraulic fluid, > yes we are primarily concerned about drips and leaks from hydraulic > lines. Some customers what the paints and coatings to be > "bulletproof" and know that if a material can stand up to hydraulic fluid, it will stand up to everything else. > > > Doug Pauls > Principal Materials and Process Engineer Rockwell Collins > > On Wed, Aug 23, 2017 at 5:44 AM, Graham Naisbitt < > [log in to unmask]> wrote: > > > Hi Doug > > > > I recall being asked the question regarding our (then) coatings and > > their ability to resist Skydrol. > > > > When I enquired why, I was informed that the electronic circuits > > were in the cockpit, and they were worried about the effects on them > > if Skydrol were to "leak" onto them. > > > > I had to ask why this would be important given that the pilot had > > already ejected to safety if that happened. > > > > I don't believe that anyone found a Skydrol resistant paint or > > coating > but > > can't Eastman help you? > > > > ATB - Graham > > > > > On 21 Aug 2017, at 22:06, Douglas Pauls <[log in to unmask] > com> > > wrote: > > > > > > Good afternoon all, > > > > > > Do any of you know a good epoxy-based paint that is resistant to > > Skydrol, a > > > nasty phosphate based hydraulic fluid? > > > > > > Doug Pauls > > > Principal Materials and Process Engineer Rockwell Collins > > > > >