Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Composite Materials Functions
- Technologies
Features & Benefits
- Materials Features
Applications & Uses
- Composites Processing Methods
- Formulation Guidelines
Crystic 1141PA and 1142PA should be cured using AAP (acetylacetone peroxide – Andonox® PD40). MEKP catalysts may be used, and will give similar geltimes, but the resins will take appreciably longer times to cure.
Properties
- Color
- Typical Liquid Resin Properties
| Value | Units | Test Method / Conditions | |
| Viscosity (at 25°C) | 180 | Centipoise | SABS713-1999 |
| Gel Time (at 25°C, with 2% Andonox® PD40) | 17 | Minutes | SABS713-1999 |
| Stability (in dark at 25°C) | 3 | Months | SABS713-1999 |
Technical Details & Test Data
- Gel Time
The geltime of the resins will be determined by the level of catalyst used, and the temperature of the workshop and mold (if heated). Tables 1 and 2 show examples of typical geltimes for Crystic 1141PA and 1142PA. These were carried out on 100g samples. Geltime will be longer for thin laminates and shorter for large volumes of resin, and users are urged to make their own tests before proceeding.
Table 1: Typical geltimes in minutes for Crystic 1141PA.
Temperature 1 % Andonox® PD40 1.5 % Andonox® PD40 2 % Andonox® PD40 20°C 30 29 26 25°C 22 18 17 30°C 13 10 4.5 Table 2: Typical geltimes in minutes for Crystic 1142PA.
Temperature 1 % Andonox® PD40 1.5 % Andonox® PD40 2 % Andonox® PD40 20°C 15 13 12 25°C 9.5 8.5 8 30°C 7 6 5.5 N.B. Peroxide catalysts are highly reactive and may decompose with explosive violence, or cause fires, if they come into contact with flammable materials, metals or accelerators. For this reason they must never be stored in metal containers or be mixed directly with accelerators.
Curing of the resin should not be carried out at temperatures below 15ºC. The resin, mold and workshop should all be at or above, 15ºC before curing is carried out. Scott Bader (Pty) Ltd. will not be liable for problems caused by use at lower temperatures than recommended.- Exotherm
The exotherm produced during the cure of the resin will depend on the amount of catalyst used. An increase in the temperature of the mold or the liquid resin will result in a higher peak exotherm. This will also be affected by other factors, such as the use of fillers, component thickness and the material from which the mold is constructed. For further recommendations please consult Scott Bader Technical Service Department.
- Additives
Crystic 1141PA may be colored using up to 5% of Crystic Pigment Paste. If other additives are to be used, please contact Scott Bader Technical Service Department before proceeding. Crystic 1141PA may be filled with up to 50% (100phr) of fine filler; grades such as Kulubrite® 5 (calcium carbonate) or Eggerding® M10LF (alumina trihydrate) are suitable. Higher filler loadings are possible but generally this requires the use of mixtures of coarse and fine fillers, or surface treated fillers. Fillers should be dispersed in the resin using a high shear mixer such as a Cowles blade. If not used immediately, filled mixes of Crystic 1141PA must be kept gently agitated to prevent settling of the filler. Users should be aware that fillers affect the viscosity and geltime of the resin, and are advised to carry out tests before using them in production of parts.
Packaging & Availability
- Packaging Type
- Packaging
- Crystic® 1141PA and 1142PA are supplied in 25kg, 225kg drums, and 1125kg intermediate bulk containers. Bulk supplies can be delivered by road tanker.
Storage & Handling
- Storage
Crystic® 1141PA should be stored in the dark in suitable, closed containers. It is recommended that the storage temperature should be less than 20°C where practical, but should not exceed 30°C. Ideally, containers should be opened only immediately prior to use. Where they have to be stored outside, it is recommended that drums be kept in a horizontal position to avoid the possible ingress of water. Wherever possible they should be stored under cover.