sheet-metal bed caulikng?

If you want it completly smooth with no seams the best thing is to metal finish it and then use filler just like if you were shaving a door handle.... If you want a factory look like the rolled edge and the thick bead best thing is the 3m sausauge sealer it's one part you will need the sausauge gun. Go to your paint store they will know what I am talkin about.. You cut your tip in the style of bead you want the more open the larger the bead and faster flowing the smoothness comes from working it with prepsol and a rubber glove.... i whould practice on a piece of scrap before applying the product to the job... 

i've used the 3M beige seam sealer (only $20 a tube i think regular caulking gun too) and applied it with an old stripped out socket from a wrench set. gave it a decent radius i just held it at a 45* and it helps to smooth out the sealer while its wet. as mentioned above you can also use a rubber glove and some prepsol or i have used First Klean or Final Klean <-but you have to smooth it while its fresh and hasnt skinned over.

is the 3m beige seam sealer the sandable stuff

3m's new bare metal seam sealer is the shiznit, and its sandable. No matter what seam sealer you use, its all about how its applied. I would recommend using a 2 part seam sealer tho, and if its not a bare metal seam sealer, use a 2k primer and scuff it before applying.

the beige 3m stuff i was referring to: yes it is sandable but i forgot to mention that its supposed to be applied over sanded primer. at least thats what we alwatys did in the body shop. welding on a bed side... clean up the welds if needed, wipe the area with de-greaser, painter sprayed primer, after it was dry we would sand or coarse scotch brite the seam then de grease again, then apply seam sealer and smooth, you can sand it after its cured but we always preferred smoothing it while its still wet that way after it dries they just prep it right along with the rest of the panel, wet sanding or scothch brite again cocntinue on the paint prep process...

stephen you wouldnt be able to get a part number on that 3m would ya? i cant find it anywhere

its 3M Fast'n Firm seam sealer beige part #08505. works well at around 20 bucks a tube and is fully sandable and paintable when dry. got mine at a local car quest parts store. hope that helps. Chris

thanks