It's freindly to all vinyl,
Malco has been making it for years it turns out and been supplying the auto detail industry for at least 20. I talked to a Malco rep at the facility and he said it's also been used on boats for awhile as well.
You do have to be careful with it and I rinse with water right after and only use it when neccessary. I instructions state "do not let run, wipe drips immediately". It does however restore dirty vinyl and thread to as new condition. I also checked the contents to make sure there was nothing harmful in it.