Filler after priming?

[4regt4]

Got the rocket ready to paint. Or so I thought....

I had to use some Elmer's Wood Filler where there was a seam in the 2 body tubes. What I didn't notice - until after applying a heavy coat of primer/filler - was some pits in the wood filler.

Do I need to sand off ALL the primer in this area, or is there a filler product that can be applied over primer that has been mostly removed? These pits are kind of deep, it would require quite a lot of sanding to remove all the primer deep inside those pits.

I'm looking for the quick solution if one exists, not the laborious solution.

Hans.

 

[Bill S]

I use Bondo Glazing and spot putty on top of primer all the time.

https://www.homedepot.com/p/Bondo-4-5-oz-Glazing-and-Spot-Putty-0907/203418234

 

[fyrwrxz]

Just hit it with the filler/ credit card trick and let it cure well. Reshoot some primer and let cure. Repeat as required.

 

[neil_w]

You can apply the filler over the primer, it's fine.

 

[4regt4]

I use Bondo Glazing and spot putty on top of primer all the time.

https://www.homedepot.com/p/Bondo-4-5-oz-Glazing-and-Spot-Putty-0907/203418234

Thanks. Much appreciated, that will save me a lot of time.

Hans.

 

[lakeroadster]

Got the rocket ready to paint. Or so I thought....

I had to use some Elmer's Wood Filler where there was a seam in the 2 body tubes. What I didn't notice - until after applying a heavy coat of primer/filler - was some pits in the wood filler.

Do I need to sand off ALL the primer in this area, or is there a filler product that can be applied over primer that has been mostly removed? These pits are kind of deep, it would require quite a lot of sanding to remove all the primer deep inside those pits.

I'm looking for the quick solution if one exists, not the laborious solution.

Hans.

I used Elmers Carpenters Wood Filler over the primer on the nose cone of my scratch build F-79. No issues.

 

[4regt4]

I used Elmers Carpenters Wood Filler over the primer on the nose cone of my scratch build F-79. No issues.

That's good to hear. I was thinking that the Elmer's might not be compatible with a surface that isn't very porous like wood or paper is.

Hans.

 

[lakeroadster]

That's good to hear. I was thinking that the Elmer's might not be compatible with a surface that isn't very porous like wood or paper is.

Hans.

Primer is pretty porous. That's why a car body will rust with just primer. What kind of primer are you using?

 

[Hobie1dog]

I use Bondo Glazing and spot putty on top of primer all the time.

https://www.homedepot.com/p/Bondo-4-5-oz-Glazing-and-Spot-Putty-0907/203418234

+1 what he said

 

[4regt4]

Primer is pretty porous. That's why a car body will rust with just primer. What kind of primer are you using?

Duplicolor Filler/Primer. Which goes on like an inch thick. I love it.

Hans.