How to clean Hartz Cloth Tops

Does anyone know how to clean Hartz cloth convertible tops. I've searched the web and cannot find anything. I used a pressure washer and it worked, but I don't think it's safe and don't want to repeat it.

welcome to AF!! is that a factory roof?

I did a little search of my own, and came up short-handed as well. Perhaps a trip to your parts store would help or you could ask someone who details cars for a living.

p.s. Nice to have another "george w" on here:)
What's your last name? Just curious, it's a small world