GC EUROPE GRADIA gum shades - Manual (Page 12)

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Bonding Systems for GRADIA and GRADIA gum shades: Step by Step
GC METALPRIMER II
Bonding agent for metal/resin interfaces
1. Sprinkle RETENTION BEADS II SSS on the wax surface to enhance mechanical
bond strength. Invest and cast as usual.
2. Sandblast the metal surface with clean 50-110 μm aluminium oxide.
3. Clean the surface with dry, oil-free air.
4. Immediately apply METALPRIMER II once or twice using a clean, flat brush.
5. Allow to dry for a few seconds.
6. Apply FOUNDATION OPAQUE when using GRADIA composite.
If no opaque layer is needed (see build-up of Gum Block), a thin layer
of Gum Modifier (GM30) is applied. The further build-up
is carried out according to the usual procedure.
GC COMPOSITE PRIMER
Light-curing bonding agent for priming of additional composite layers
1. To add resin to a veneer build-up of GRADIA or GRADIA gum shades,
first roughen the resin surface with a bur and/or sandblast with aluminium oxide.
2. Coat the roughened surface with COMPOSITE PRIMER.
3. Light cure for 1 min in a LABOLIGHT LV-III.
4. Additional composite paste can be applied and light cured according to the curing chart.
GC CERAMIC PRIMER
Two-component bonding system for ceramic/composite interfaces
1. Roughen the bonding surface of porcelain fused to metal using a carborundum point, etc.
Clean with dry, oil-free air.
2. Sandblast the bonding surface with 110μ alu-oxid or apply a fluoracid etching gel.
3. Clean by rinsing with water and dry.
4. Mix CERAMIC PRIMER A & B. Apply to the bonding surface and softly dry with air.
5. Apply COMPOSITE PRIMER to the bonding surface and spread thinly with air.
Light-cure for 1 minute using the LABOLIGHT LV-III.
6. Apply GRADIA to the bonding surface.
(Please refer to special instructions for use of each product)
Bonding Systems