A Thread Compatibility Question

[llucas]

I have a newbie question. I recently purchased an Adler 205-374 that I am refurbishing. I am new to machine sewing leather having only hand stitched up to this point. I recently purchased five one pound spools of 277 bonded nylon thread at a good price. For my holster sewing I purchased some 346 bonded polyester. Here is the question: can I use the 277 nylon for the bobbin and the 346 polyester for the top stitch? Or should I only use nylon top and bottom or polyester top and bottom?

Follow-up question: does bonded nylon thread have a shelf life? This stuff is about five years old.

Edited November 24, 2015 by llucas

[benlilly1]

Bump

[Art]

Use what you got. Ploy and Nylon have been used together since someone bought two different spools of thread. Might not be Mil-spec, but I'm not the Rock Island Arsenal.

For shelf life, modern thread will last forever if you leave it out of the sun. Even if in the sun for a long time, strip off a layer of thread and spray it with silicone lube.

Art

[llucas]

Thanks, Art.