Help! Trouble filling body tubes

Help! Trouble filling body tubes

Post by Peter Chestn » Mon, 22 Apr 2002 11:26:46



I have completed construction of my Apogee Saturn V.  I began filling the
spirals with Elmer's Fill n' Finish diluted with a couple of drops of water.
I used a popsicle stick to run a bead over the spiral.  When I went back to
sand it, looks like I never filled it in the first place.  Now all I have is
spirals and scuffed tubes.  Somebody please explain what I am doing wrong!

Am I diluting too much/little?
Am I applying it incorrectly?
Am I sanding incorrectly?

Thanks in advance for the help.
Pete

 
 
 

Help! Trouble filling body tubes

Post by Steve Wolf » Mon, 22 Apr 2002 12:04:22


Quote:
> I have completed construction of my Apogee Saturn V.  I began filling the
> spirals with Elmer's Fill n' Finish diluted with a couple of drops of
water.
> I used a popsicle stick to run a bead over the spiral.  When I went back
to
> sand it, looks like I never filled it in the first place.  Now all I have
is
> spirals and scuffed tubes.  Somebody please explain what I am doing wrong!

> Am I diluting too much/little?
> Am I applying it incorrectly?
> Am I sanding incorrectly?

  It will shrink as it dries, so if you have a large spiral, you may have to
apply it twice.  Also, if you're sanding it with an orbital sander, that
seems to sand it down to a level a little lower than the body tube.  Hand
sanding, while more tedious, usually gives me a better surface than
power-sanding.

steve

 
 
 

Help! Trouble filling body tubes

Post by Vance Pierc » Mon, 22 Apr 2002 21:42:14


Quote:

> I have completed construction of my Apogee Saturn V.  I began filling the
> spirals with Elmer's Fill n' Finish diluted with a couple of drops of water.
> I used a popsicle stick to run a bead over the spiral.  When I went back to
> sand it, looks like I never filled it in the first place.  Now all I have is
> spirals and scuffed tubes.  Somebody please explain what I am doing wrong!

Use a flat sanding block, and sand the tube in an up-down motion (or left-right,
if the tube is sideways in front of you), rotating as you follow the spiral.  Don't let
the edge of the sanding block go past the spiral.  Sand just enough to remove
the excess filler, don't dwell on one spot too long.  When finished, shoot a primer
coat, sand, and touch up any defects still showing.
 
 
 

Help! Trouble filling body tubes

Post by Davi » Mon, 22 Apr 2002 22:59:17


You're not wet sanding, are you?  That dissolves the Fill n' Finish.

-- David

Quote:
> I have completed construction of my Apogee Saturn V.  I began filling the
> spirals with Elmer's Fill n' Finish diluted with a couple of drops of
water.
> I used a popsicle stick to run a bead over the spiral.  When I went back
to
> sand it, looks like I never filled it in the first place.  Now all I have
is
> spirals and scuffed tubes.  Somebody please explain what I am doing wrong!

> Am I diluting too much/little?
> Am I applying it incorrectly?
> Am I sanding incorrectly?

> Thanks in advance for the help.
> Pete

 
 
 

Help! Trouble filling body tubes

Post by Doug William » Thu, 25 Apr 2002 03:13:30


I always prime first.  Then I dilute filler to a white glue consistency and
apply with a brush across the spiral (filling with the groove will remove, or
drag the filler out).  I then sand across the groove not removing the primer.
If there is a little filler left that's ok it probably was a low spot in the
tube.  I never have problems with this method.
Quote:

> I have completed construction of my Apogee Saturn V.  I began filling the
> spirals with Elmer's Fill n' Finish diluted with a couple of drops of water.
> I used a popsicle stick to run a bead over the spiral.  When I went back to
> sand it, looks like I never filled it in the first place.  Now all I have is
> spirals and scuffed tubes.  Somebody please explain what I am doing wrong!

> Am I diluting too much/little?
> Am I applying it incorrectly?
> Am I sanding incorrectly?

> Thanks in advance for the help.
> Pete