3M Espe Relyx Veneer Cement RelyX Veneer cement is a permanent, light-cure only resin luting material. It must be polymerized by exposure to visible light in the 400-500 nm wavelength range. Most ceramic and composite veneers are thin enough and translucent enough to allow for adequate light penetration through the veneer to completely cure the cement. RelyX veneer cement is very efficient in its light-curing ability. This allows for a simplified bonding technique and also provides for excellent color stability of the cured cement. This feature is vitally important for highly esthetic veneer restorations.