I was very excited about this product to hopefully solve an effect that I have in a routine that uses two cards together until the end to end up with a color change reveal. The bottle that I got was compressed slightly and maybe had some sort of air leakage. It seems that a good portion of the product itself had solidified. I was able to get some liquid out and attempt on test cards, but it dried so quickly that my experiments failed to get a smooth finish with it. A neat thing is that if you're able to get part of it lifted, you can peel the whole product off and try again. But I could not get it to be smooth. It was very visible on the card and often bumpy (despite using another card instead of the applicator, as Daniel instructed). It didn't seem to achieve the effect that I was hoping for. My vision for the product is to be able to do a whole deck with some double decker cards and be able to have a free choice of any card and still have the color change work without the deck being enormous. Alas, I wasn't able to make that happen, but it might just be a one-off for me, because it seemed to work great for Daniel. I am also in the states, so maybe something to do with transit affected it.

I love it , i will never go out without apply the substance at least at one card

Brilliant! I totally love Substance. Big thanks for making it available and the video that comes with it is exceptional.

very good product that adheres cards together better than say roughing stick. I docked it one star because Ive found that the coating can peel off after minimal use on some of the cards Ive applied it to. Perhaps this is due to the cards themselves? Where it sticks though its great

Excellent as always Daniel always provides exceptional videos decks and devices.