I recently re-covered my son's Cardinal, and had issues from pigment stains left from the old covering. I needed something that would cover and could not be seen through. My son bought 2 rolls of Ultracote, yellow and orange. Both these colors were quite opaque, didn't hide at all. I then discovered cream colored Ultracote covered the stains quite well, as did red. It seems that the only technical support I could find on Ultracote comes from Horizon Hobbies. I sent a support request to them asking for a listing of which Ultracote colors are opaque, and which are solid, and explained the above to them as clearly as I did here. After several days I got a reply back, they said they didn't know, but the darker colors usually hide better then lighter ones. Now doesn't it seem like CREAM is a lighter color then ORANGE or YELLOW? Seems to blow that theory right out the window. I feel bad for my son who basically wasted about 35 bucks buying a product he can't use, and can not get reliable information from the manufacturer's apparent sole representative. Does anyone know who might have this information? I think it's very poor business to not list this type of information in product descriptions in ordering sites.  I would greatly appreciate any info you folks might have.