Alpha-Bond® is a Single Component Acetone Based Adhesive with a Dual Cure Activator (purchase separately) formulated to bond to multiple substrates for both direct and indirect bonding procedures. It contains the hydrophilic monomer PMGDM that allows penetration into the tubules, intertubules and peritubuler dentin. For a single step light cure adhesive, use the bottle marked adhesive. By combining the dual cure activator with the adhesive, you can confidently bond to self cure composites and areas inaccessible to light.