Okay, time to get some FACTS straight.
Real latex hand guards: Amber in color. Needs to be painted. There are several options. (see above).
I like mine because it is a true white, has a certain amount of flexiibily and can be weathered screen accurately.
(these are the preferred hg of the UKG).
You could tint real latex with white dye, but because latex gets darker the older it is, there will a a certain amount of yellowing
White rubber hand guards (f.k.a non-latex). They're most likely silicone rubber. You have a hard time painting these, as NOTHING sticks to silicone. (there are polyurthane rubber and some other too)
The original poster (Mike) has clearly stated he has the white rubber variant, which, unfortunatly, cannot be painted the latex way, because they are NOT LATEX
Vern, please don't recommend to people to make hand guards themselves YOUR way: You are basically RECASTING your plastic AP guards. True, they're only for your personal use, but it IS STILL RECASTING
I put templates and intructions in the HOW TO section, so people can make them themselves THE PROPER way.