Use either instead of acid primer or after acid primer. Fully acid-free, highly efficient adhesion agent that acts as a double-sided adhesive for gel and acrylic. No need to wait for it to dry (it remains sticky). Tip: ensure you...

Acid-free primer without HEMA ingredients . Unlike the previous acid-free primer, it does not leave a visible sticky residue, but its function and efficiency remain unchanged, and the next layer can adhere stably to it.  A completely acid-free, adhesion-promoting liquid that does...