Colouring product does not dry out
Hello, I made thanks to your products and advice a renovation of an armchair and sofa set. It worked pretty well, but at the head level, it never completely dries out and it stays sticky to the touch.
So I redecorated, sanded, stripped bare (full grain leather), degreased with acetone, switched to leaving, followed up your antique sebum product, dried, stained, etc.. In vain: always sticky to the touch, never dry.
What to do about it? Thank you for your advice.

