Prelude - Primer Refill - Bonding System, Contains 1 - 5ml Bottle of Primer. Prelude is a nanohybrid, light cured, self-etch or total-etch dental adhesive ideal for bonding composite to dentin, enamel, and porcelain. Its low film thickness at 5 microns does not interfere with the fit of indirect restorations. • Use on tooth, composites and metals. • Compatible with all composites and compomers