i bought the medium coloring kit + binder and flexifill from FurnitureClinic, and it worked out very nicely, the end result is 8/10. more like 9/10 if you have realistic expectations.
Meaning the leather will never feel the same again, it will never look the same again. it looks 90%, there is a slight off color look on the Tan at least. the feel of the leather is not something you will miss unless you have something to compare it side by side. i did so i know exactly the differences between them.
Its ... its own thing, its not oem, its something else.
Made an album. Alfa GTV Seat Restoration - Album on Imgur
1: Cleaned everything with the cleaner
2: Solvent + green (600grit) scotchbrite pad until tan is being transferred to the pad
3: Plugged all the tiny holes with flexifill (Should have used it on the infamous side bolsters that crack and dry but forgot to do so, see pictures)
4: Leather binder with a pad, 5 coats 5 min with hair dryer between coats
5: Coloring: 5 Times with a pad to get a base coat down
Then apply with spray gun provided 5 coats. or until your coverage is good.
6: Sealer: First spray on the Super-Seal, spray this on in 3-5 coats and give enough time to dry between coats.
you can use hairdryer to speed up the process.
Note: Super-seal is far more thinner then the colorant so adjust the airbrush accordingly.
Lastly the Leather Finish should be applied. Spray on the leather finish in approximately 7-8 thin coats for best results. Always remember to leave time for each layer to dry before applying the next.
Use Semi matt to matt finish for a oem look.
I did this but i used everything in the bottles that came and put on over 30+ coats of everything. This is the reason why it wont get the same leather feel as oem, your painting over leather. But you wont really notice it unless you have something to compare it too.
I wish i had used flexifill on the bolsters that crack and be more careful when it comes to the spraygun spitting sometimes, especially when your doing the finish, 1 small drop of spit can ruin everything if you try and get it away too aggressively. It will spit, you have to wipe it away or scratch it away, when the finish rips, you take a small art brush and get some finish on it and touch it up a few times, its all good now. also use a tack cloth between the coats of finish, i had a few dust specs come in between the coats. now they are there forever.