can it be used on any dark surface or black only?
937425
I would suspect not. It's like black shoe polish or dye. I used it on the plastic bumpers on my Jeep.
1260457
Depends how much you want to black it out. I've used it for privacy in some windows but if you want it complete dark maybe applying it twice.
317592
I believe you can use it on any color. My sink is a dark brown and it works just fine on it. You do need to rinse really good and if you do not you will get a white film on sink.
1058987
as said before... will turn whatever.. Black. Do not believe it will hurt it at all.
886220
Yes, you can, which is what I got it for. However, the finish is a glossy one, and not the black matte, as advertised. Also, it's not the most comfortable fit. Caveat emptor.
955113
Ospho will convert surface rust to black. You still need to sand and prime and paint
1549245
Yes, this works VERY well on a black sink. It was the only cleaner that bright back the shine and didn't leave my sink with a dull coating.
589515
I personally have only used it on black, as recommended. however it could be that DARK PURPLE has enough deepness that it allows the full color change effect to happen? from what I have seen. The color shifting properties have best results on darker back grounds. sorry I can't be more sure of results. good luck.
503424
I agree - almost anything can be painted black - not sure why you would want to - the natural finish I think is very nice
1707039
No. You can't use this on a black sink. You would need something that is the same color of your sink. This item is for white porcelain items only.
159678
Yes, it's customizable as to how light or dark you want the end result to be. Also, if you layer the minerals while they are still wet, you will end up with gray areas where the white and black mix together (but dab the sponge, don't smear!).
1994255
We sprayed it on a dark brown surface and it was totally transparent day and night. By the way, it did not reflect at all at night. We had to find something else to use.
2234967
I have only used it on light colors......I can tell you that it is the best I've used......after it's been washed there is no harshness and you really only see what you put on....I still trim before pressing.....old habit I guess but I have never tried dark colors....I would give it a try.
2116691
If it is a coating it might take it off. I don't have black, but I can see this taking off a coating especially if it was cheaper. Mine just has laser detail, and it was fine for that.
180639
It is OK to use the dark stuff. The U-tube video uses a light colored grease but the dark one works fine.
507148
I can't see why not. It has no color base so while it might work better than some others on black, and I don't know that to be true since there is nothing on the label indicating that, it should still work on any color car. White doesn't have the same glow/reflection quality that black does. That said I am not sure what improvement you're looking for, but if it's to provide a smooth clean finish between waxing then yes I'd say it will work better than some other detail sprays. The best I have used. Hope that answers the question. If not let me know if there is any other information I can provide. I can't see why not. It has no color base so while it might work better than some others on black, and I don't know that to be true since there is nothing on the label indicating that, it should still work on any color car. White doesn't have the same glow/reflection quality that black does. That said I am not sure what improvement you're looking for, but if it's to provide a smooth clean finish between waxing then yes I'd say it will work better than some other detail sprays. The best I have used. Hope that answers the question. If not let me know if there is any other information I can... » Read More I can't see why not. It has no color base so while it might work better than some others on black, and I don't know that to be true since there is nothing on the label indicating that, it should still work on any color car. White doesn't have the same glow/reflection quality that black does. That said I am not sure what improvement you're looking for, but if it's to provide a smooth clean finish between waxing then yes I'd say it will work better than some other detail sprays. The best I have used. Hope that answers the question. If not let me know if there is any other information I can provide. « Show Less
1875339
Not sure, I only tried it on my phone screen. But, as it's intended to be used on screens and wasn't effective for that at all, I doubt it'll work on other surfaces.