Page 23 - Patty Hahne "The Pocket Guide to Prepper Knots"

idea to have some around. Remember, this is low quality and
inexpensive rope. Even if it says it has a particular tensile
strength on the package, it would be wise to err on the side
of caution and assume it will fail before that point. Tie a few
knots in it and it will become even weaker.
Depending on the type of rope used, it may hold a knot
differently. Some rope, such as polypropylene hollow braid
rope, has a “plastic-like” feel. It’s often used in wet environ-
ments since it tends to resist mildew and rot. The drawback
to it is that it’s slick and can be difficult to tie a knot in it that
won’t easily become untied.
The main thing to remember is you should practice tying
knots with the type of rope you intend to use to see exactly
what it feels like when you’re tying knots in it. If you find it’s
quite difficult to work with or you find the knots you tie in
it slip or don’t want to stay tight, you might want to consider
using a different type of rope.

Introduction to Various Types of Rope 17