Captek system uses a one of a kind bonding mechanism between the Captek materials and porcelain (or composite). The Captek porcelain bonder, the UCP has gold and platinum micro-filaments extensions on the Captek surface. The micro extensions provide exceptional mechanical bond strength. Captek has a pure high noble metal composition, which does not produce any oxides, therefore requires a different method of bonding to porcelain. This Captek bonding material replaces the conventional grey oxide layer used for bonding in other PFMs, and surpasses it in its bond strength. UCP creates a bond between the Captek coping and porcelain that is unbreakable.
The elasticity of the UCP layer diminishes ceramo-metal stresses caused by COE difference that often accounts for porcelain cracking and chipping.

UCP on Captek provides a color background for the final crown that is the closest to a natural tooth, thanks to its goldish tones that closely resembles the color of dentin close to the pulp.
UCP contributes to the Captek crowns natural beautiful appearance, with its color and light scattering effect. Light reflecting from a Captek crown, gets scattered by the micro-structure of the UCP layer, in a similar way of natural teeth. Light is broken and scattered from natural teeth, by the enamel prisms and dentin tubuli, and by the UCP in Captek.