Marking "Silpoly"

[Alaskan Hanger]

Hello All,
I am getting all my supplies together for my first project, a Pack cover / gear hammock. It will be made from Silpoly.

My question is what kind of sewing pencil or marker should I look for to mark lines on the silpoly?

Thanks for your help
Alaskan Hanger

[Flash Grundelore]

DRITZ™ Tailors Chalk... any fabric store. I got a two-pack of blue and white. Works on most everything and wipes right off.

[KevinMyhre]

I just use normal chalk but it does rub off a little too easy

[Wanderlost]

I just use a sharpee. On darker fabric, I picked up a silver sharpee. The makrs will smear off a bit due to the water repellency, but it works for me. The marks never too long afterwards. YMMV.

[henson]

I noticed that a sharpee can bleed through some of the materials. Happened to me on a quilt project.

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[Pvt.Donut]

Not the best way to go but I used a White colored pencil on my GF's blue SilPoly tarp. The marks will eventually wear off but chalk would have worked way better.

[Caminante]

I always forget to buy chalk, but want to try it. I've been using the edge of a nearly worn out piece of soap which is a trick my tailor aunt-in-law showed me. Works on pretty much everything except the lightest colors, but does take a few passes on the PU-side of coated fabrics.

[Floridahanger]

I just used a regular ball point pen. Just make sure the line you want is correct.

[bkrgi]

DRITZ™ Tailors Chalk... any fabric store. I got a two-pack of blue and white. Works on most everything and wipes right off.

Cheap and works ....I have laid down some 75' of lines on silpoly PU4000 the last couple days for my new Hammock Hot Tent