Spiral Tube Filling

Spiral Tube Filling

Post by Bill McFetter » Sat, 10 Oct 1998 04:00:00



Does anyone know of a better way to fill the spirals on PML tubing?? Right
now I'm using "Elmers's Carpenter's Wood Filler", It works ok...just want to
know if there is something else out there.
Thanks in advance
Bill McF.
Farmington, MI
 
 
 

Spiral Tube Filling

Post by Lee R. Ree » Sat, 10 Oct 1998 04:00:00



Quote:
>Does anyone know of a better way to fill the spirals on PML tubing?? Right
>now I'm using "Elmers's Carpenter's Wood Filler", It works ok...just want
to
>know if there is something else out there.

The spirals are deep, and the tube tough, so I found that filling them with
Bondo Glazing Compound works well, and you can use a palm sander to finish
them. Then apply several coats of primer, sanding well to fill in any little
voids.

HOWEVER:

PML tubing is so brittle, you may want to fiberglass it. This has the added
advantage of filling the seams!

Lee Reep

 
 
 

Spiral Tube Filling

Post by Palme » Sun, 11 Oct 1998 04:00:00


I now agree with the fiberglassing bit. I just got done with a PML Bull
Puppy and an LOC EZI65. It's not so hard to do and I don't have to fill
those groves. Oh I've done it on my Afterburner, Endeavour and a previous
Bull Puppy but fiberglassing makes it a lot stronger. Put it this way, A
friends fiberglased Bull Puppy started coming in ballistic last month until
the chute deployed about 2/3 rds on the way down and it only ripped out a
chute line and no zipper or any damage to the rocket. You can visit
http://home.att.net/~sky-bound to see how we did it.
                                                                Palmer
Quote:



>>Does anyone know of a better way to fill the spirals on PML tubing?? Right
>>now I'm using "Elmers's Carpenter's Wood Filler", It works ok...just want
>to
>>know if there is something else out there.

>The spirals are deep, and the tube tough, so I found that filling them with
>Bondo Glazing Compound works well, and you can use a palm sander to finish
>them. Then apply several coats of primer, sanding well to fill in any
little
>voids.

>HOWEVER:

>PML tubing is so brittle, you may want to fiberglass it. This has the added
>advantage of filling the seams!

>Lee Reep

 
 
 

Spiral Tube Filling

Post by <smh.. » Sun, 11 Oct 1998 04:00:00


    Elmers wood filler works great, just make sure that you get the
"finishing" variety (much thinner and lighter).  The finishing variety comes
in Light Wood and Heavy wood flavors.  I use the light wood variety and put
it on heavy.  With this method, sanding a 3" x 36" BT takes about 5-10
minutes.

Philip

Quote:
>Does anyone know of a better way to fill the spirals on PML tubing?? Right
>now I'm using "Elmers's Carpenter's Wood Filler", It works ok...just want
to
>know if there is something else out there.
>Thanks in advance
>Bill McF.
>Farmington, MI