As a new builder, I've spent hours researching priming. The one thing I wasn't able to find was a poll on which primers folks here are using. Just curious which primer is the most popular. If you primed, which did you choose?
Very happy to see you have achieved consensus results with your poll.
The old-timers on the forum knew where this was going to end up.
Current project is no primer, but it is entirely 6061. Very corrosive resistant.
And if you are inland just a little, it will stay polished FOREVER!!!!...
It would be interesting to see a poll that included only RV’s that had been flying for a while. From the testing I did and the planes I see:
Spray can coatings + hours = not pretty.
Weight
Primer is a big decision.
If anyone wants to calculate a weight estimate, I have a spreadsheet with ft² for a 7(a). Figure about 6 grams per ft² for an epoxy primer sprayed per manufacturer. About 6lbs on a 7 if every inside surface is primed. You could cut that in half by spraying one coat.
Basically 3 oz for P60G2. I couldn't get a weight on any samples. All fell within the 1/10g error range per ft² on the scale.
No data on the others but that would be easy to put numbers to the spreadsheet if someone can shoot me grams per ft².
I used a combination of EkoPrime and EkoPoxy. I'm done most of the major portions and have gone through a little over 2 gallons total. This is for a 14A.I'm thinking Stewart Systems, just now getting into my build. Just curious, how many gallons should I expect to go through on a build? Only asking since a gallon of OD green EkoPrime is $300. Guess that's ok if I only need a couple gallons total for the project, but still.
For my 9A I'll end up using about 1 3/4 gallons of Ekoprime/Ekopoxy. That's with virtually every interior surface primed (won't be doing that again if I build a second plane, but that's a separate topic). For my use, the Ekoprime was my go-to just because of how easy it was to use and store.I'm thinking Stewart Systems, just now getting into my build. Just curious, how many gallons should I expect to go through on a build? Only asking since a gallon of OD green EkoPrime is $300. Guess that's ok if I only need a couple gallons total for the project, but still.
I did EcoPrime for the wings and doing EkoPoxy for the fuselage. I was able to get through the wing with 1 gallon of EcoPrime (probably a bit of leftover that I threw out). For the fuselage I just ordered by second gallon of EcoPoxy (with again a lot of waste ~20% of the first gallon).I'm thinking Stewart Systems, just now getting into my build. Just curious, how many gallons should I expect to go through on a build? Only asking since a gallon of OD green EkoPrime is $300. Guess that's ok if I only need a couple gallons total for the project, but still.