PERGAQUICK C12 X
Thermoset Curing
Cobalt accelerator
Description: Cobaltoctoate
1,0% , (Co) Solution in TXIB
PERGAQUICK C12 X is used as an accelerator for curing of unsaturated polyester
resins at ambient temperature in combination with Ketone peroxides
CAS No. (active substance): 98409-81-4
Technical data: Appearance: dark liquid
Assay: ca. 1%(Co)
Density at 20°C: 0,96 g/cm³
Solubility: Insoluble in water, soluble in various organic solvents
Storage: Maximum storage temperature (Ts max): 30°C
Minimum storage temperature (Ts min): 5°C
Storage stability as from date of delivery: 6 months
Keep packaging tightly closed in a well ventilated place at indicated storage temperature.
Safety characteristics: Flash point: 107° C
Packaging: 25 kg Container; 200 kg Steeldrum
Major decomposition In case of fire, Cobalt oxides and carbonmonoxide may be formed.
products:
Hazardous reactions: Might react violently with organic peroxides. It is therefore not allowed to store or transport the
product together with peroxides. NEVER BRING AN ACCELERATOR INTO DIRECT CONTACT
WITH PEROXIDES!
Safety and handling: Please refer to the material safety data sheet (MSDS) for information concerning safe storage, use
and handling of PERGAQUICK C12 X. This information should be thoroughly reviewed prior to
acceptance of this product. The MSDS is available for downloading at www.pergan.com or through
contacting Pergan directly.
UP/200411/01.03/2010
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PERGAQUICK C12 X
Thermoset Curing
Cobalt accelerator
Application: The curing of unsaturated polyester resins at ambient temperatures can in general not be performed
by an organic peroxide alone. The radical formation which is necessary - to start the polymerisation
reaction - is too slow at ambient temperatures with most generally applied organic peroxides.
To speed up the radical formation in a controllable way, organic peroxides must therefore be used
in combination with a so called accelerator. For ketone peroxides - like Methylethylketone peroxides,
cyclohexanone peroxides and acetylacetone peroxide - a cobalt accelerator must be used.
For this purpose the following formulations of cobalt octoate are available:
PERGAQUICK C100 10% cobalt
PERGAQUICK C60 X 6% cobalt in TXIB
PERGAQUICK C12 X 1% cobalt in TXIB
PERGAQUICK C11 1% cobalt in styrene
The reactivity of the various cobalt accelerator formulations is directly correlated with the cobalt
content. The use of a lower concentrated version increases the dosage accuracy. However, when
the dosage level of e.g. PERGAQUICK C12 X must be higher than appox. 3% to achieve the required
cure performance, it is advised to use a higher concentrated cobalt accelerator like e.g. 0,5%
PERGAQUICK C60 X.
Apart from the choice of the ketone peroxide, the cure characteristics of an unsaturated polyester
resin/ ketone peroxide mixture can be influenced very effectively by the dosage level of the
cobalt accelerator. For this purpose, the dosage level of the cobalt accelerator expressed as
PERGAQUICK C100 (10% Co) can be varied from e.g. 0,025 phr up to approx. 0,6 phr.
When the right peroxide has been chosen and still the required gel time and cure characteristics
can not be obtained with the cobalt accelerator alone, it is possible to increase the reactivity of the
cobalt accelerator by the extra addition of a promotor like PERGAQUICK A200 (DMA).
This adaptation of the accelerator system may be necessary when:
- a very short gel time and/or fast cure is required, e.g. for RTM or manufacture or polymer concrete
- highly inhibited and/or low reactive resins must be cured e.g. bisphenol A/fumarate or vinylesters
The cure system ketone peroxide/cobalt accelerator can be characterized by:
- the relatively low colour, related to cobalt dosage, of the cured moulding
- a very good UV light stability of the moulded parts
- the long pot life of the cobalt accelerator in the polyester resin
Disadvantages can be that the cure system is more sensitive to moisture, pigments and fillers than
the cure system Dibenzoyl peroxide / Amine accelerator.
Depending on application area and working conditions, the following accelerator dosage
levels are recommended:
PERGAQUICK C12 X: 0,02 to 2,0 phr
The information presented herein is true and accurate and to the best of our knowledge, but without any guarantee. Since the conditions of use are
beyond our control we disclaim any liability, including for patent infringement, incurred in connection with the use of these products, data or suggestions.
Buyer must determine for himself, by preliminary tests or otherwise, the suitability of this product for his purposes.
PERGAN GmbH Schlavenhorst 71 Telephone: +49 2871 9902-0
D-46395 Bocholt Telefax: +49 2871 990250 UP/200411/01.03/2010
Germany www.pergan.com Page 2 of 2