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'sticky' Petg?

Stiction Problem

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#1 Zack the Mack

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Posted 08 June 2010 - 09:31 AM

So, I bought some PETG from Mod Man to finish my Daikaiju Berserker. However, there seems to be a lot of friction between darts and the barrel - no blaster I try can push any dart more than a couple of inches. Tighter darts need a few minutes with a stick to push through, and even very loose darts get jammed partway.

I've tested with darts made from Frost King, converted stock darts, MrCrouse's foam, and others, and nothing makes it through.
I've tried barrels of 12" and 6" on a +bow, Signal Launcher, PistolSplat, and blowing them by mouth.

The PETG doesn't feel sticky or strange - it feels totally normal, but darts just won't let go of the walls.

This doesn't happen with the PETG on Silencer's NF (heh heh).

Any ideas? Should I sand down the inner walls, grease them up, change darts?

Edited by Zack the Mack, 08 June 2010 - 10:52 AM.

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#2 Lt Stefan

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Posted 08 June 2010 - 09:42 AM

What guns have you tried petg with and how long were the barrels?
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#3 Galaxy613

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Posted 08 June 2010 - 10:15 AM

Try spraying pure silicone grease down the barrels. Shoot darts out 3-7 times and see if it helps.
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#4 Fome

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Posted 08 June 2010 - 02:24 PM

I had this problem when I first ordered from Split.

The dart literally disintegrated in the PETG, leaving remnants of compacted foam on the interior walls when I tried to push it in with a pencil. I was like "WTF!?!?" but then I cleaned it out, stuck it in some PVC and fired it with a high powered gun. Worked like a charm ever since.

In short, forcefully push some foam through it. Should be fine after that.

#5 Roy

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Posted 08 June 2010 - 10:29 PM

Don't use any type of oil or grease. Try dusting your darts with a little (very little) talc or baby powder.
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