When/when not to use color preserver on thread?

Guide Wrap: Color Preserver Testing - Rod Building: Products Not

When/when not to use color preserver on thread?

C4 Flex Coat Color Preserver 4 oz. by Flex Coat

Using color preservative for guide wrappings - The Hull Truth

Using color preservative for guide wrappings - The Hull Truth

Rod Building 101 - Applying Color Preserver

Pros & Cons on Color Preservers: Custom Rod Building

On Thread Conditioning & Beeswax for Embroidery –

How To Choose Your Rod Building Thread - In-Fisherman

, NCP Rod Wrapping Thread made from 100% nylon (Color Preserver is not required to keep original color), Stretch and elasticity provides best

Hitena NCP Nylon Rod Wrapping Thread

Rod Building 101 - Applying Color Preserver