GC EUROPE Unifil Bond - Manual (Page 5)

GC UniFil Bond Technical manual version 1.10, November 2005, 5/23
3.0 Composition
Initiators used
In GC UniFil Bond, a combination of camphorquinone and amine is used as the
catalyst. Light activation can be carried out with quartz halogen, plasma or LED
curing units.
To reinforce the outer enamel surface and the collagen network with a firm and
stable adhesive resin layer it is crucial that monomers from both the primer and
bonding agent are converted from a liquid into a solid state. When the initiators, as
in GC UniFil Bond, are contained in both the primer and bonding agent solutions, the
co-polymerization of available monomers occurs more efficiently than when
contained only in either one of the solutions. Although in the latter case the initiator
might diffuse through both the primer and bonding agent immediately after coming
into contact
with each other, it is preferable that both liquids include the initiator
separately.
SELF-ETCHING PRIMER WT%
4-Methacryloxyethyl trimellitic acid
(4-MET)
10
Ethanol 48
Distilled water
40
HEMA 2
Initiator Trace
BONDING AGENT WT%
UDMA 50
TEGDMA 30
HEMA 16
Silica Filler
4
Initiator Trace