I saw this on another list, and know these pens have been discussed here, too. This woman did a thorough testing of the frixion pens for quilt marking, and came up with some surprising results.

http://quiltingclimber.blogspot.com/...evaluated.html

Interesting

Good evaluation thanks for shareing

The link seems to be broken, or maybe its just my computer :-(

Seems to be working. Maybe you should try to copy the link & paste it into your browser window. Sometimes some tempremental computers don't like direct clicks on a link. Hope it works!

Good information. Thanks.

Glad I don't use them!!!

I still think they are a great product, and I will continue to use them. I'm not worried about this temperature issue.

Thanks for posting. It's valuable information for all of us.

I have one and love it...