GC Gold Label 1 (also marketed as GC Fuji I) is a self-curing, strontium-based glass ionomer luting and lining cement designed primarily for final restorations. Its formulation forms a chemical bond directly with tooth structure and metal components without requiring additional surface primers or adhesive steps.

Key Indication

Permanent cementation of metal and porcelain-fused-to-metal (PFM) crowns, bridges, inlays, and onlays.

Final placement of stainless steel crowns and orthodontic appliances.

Use as a base or cavity liner under various restorative materials.

Features & Performance Specifications

Ultra-Low Film Thickness: Measures around 15\,\mu\text.m to allow precise seating of indirect restorations.

Chemical Adhesion: Biocompatible formulation provides high bond strength and seals margins effectively to prevent microleakage.

Fluoride Release & Remineralization: Continuous fluoride output and a strontium-based composition promote enamel/dentin remineralization and help guard against secondary caries.

Radiopacity: Easily recognizable on post-operative X-rays for clear diagnostic review.

Solubility & Thermal Expansion: Low moisture solubility once cured, with a thermal expansion coefficient similar to natural teeth to lower stress along restoration margins.

Typical Clinical Working Times

Mixing Time: 20 seconds.

Working Time: Up to 2 minutes 30 seconds from the start of the mix.

Net Setting Time: Approximately 2 minutes 50 seconds.

Final Set / Finishing: Complete cure is reached at around 4 minutes 30 seconds.