N546RV
Well Known Member
My situation: I'm about done with the tail, and I've been using Dupli-color self-etch throughout, mainly for reasons of simplicity. (no paintgun setup/cleanup, and the ability to run to Advance when I need a restock)
However, I've been kind of underwhelmed by the stuff. Coverage doesn't seem that great, and the durability is nothing to write home about. Frequently I find myself scratching the primer during assembly and then going back and touching up afterwards.
Anyways, now I'm about to have some downtime between wrapping up the tail and waiting for my wings to arrive in March, so I was thinking of picking up cans of NAPA 7220, Sherwin GP988, and SEM, and doing some side-by-side comparisons. Same prep, same application, same cure time, then subject the primed pieces to some scratch tests and so forth.
I figure it'll be educational for me and also useful for future builders who want to do rattle can but want some better comparison data than what usually comes out of searching the forums here. I never found a good comparison like this, just a lot of "I used XYZ and it was great/OK/horrible etc." Not to say that those aren't valid data points, but it's a lot harder to parse them into a real decision IMO.
Thoughts?
However, I've been kind of underwhelmed by the stuff. Coverage doesn't seem that great, and the durability is nothing to write home about. Frequently I find myself scratching the primer during assembly and then going back and touching up afterwards.
Anyways, now I'm about to have some downtime between wrapping up the tail and waiting for my wings to arrive in March, so I was thinking of picking up cans of NAPA 7220, Sherwin GP988, and SEM, and doing some side-by-side comparisons. Same prep, same application, same cure time, then subject the primed pieces to some scratch tests and so forth.
I figure it'll be educational for me and also useful for future builders who want to do rattle can but want some better comparison data than what usually comes out of searching the forums here. I never found a good comparison like this, just a lot of "I used XYZ and it was great/OK/horrible etc." Not to say that those aren't valid data points, but it's a lot harder to parse them into a real decision IMO.
Thoughts?