Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Composite Materials Functions
- Technologies
Features & Benefits
- Materials Features
Applications & Uses
- Applications
- Composites Processing Methods
- Formulation Guidelines
Crystic 2-446PA and its variants should be allowed to attain workshop temperature (18ºC - 20ºC) before use. They need only the addition of a catalyst to start the curing reaction. A color change mechanism is incorporated into Crystic 2- 446PA and its variants, to indicate the presence of catalyst. After catalyst addition, the resins will change from blue to green, then to a yellowish color, before gelation. The recommended catalyst is Catalyst M (or Butanox M50) which should be added at 1% or 2% into the resin.
- Pot Life
Table 1 - Catalyst M (or Butanox M50)
Parts of Catalyst M to 100 parts of Crystic 2-446PA 1.0 2.0 Pot life in minutes at 15ºC 62 41 Pot life in minutes at 20ºC 39 29 Pot life in minutes at 25ºC 25 20 The mold, resin and workshop should be at, or above, 15ºC before curing is carried out.
Properties
- Color
- Typical Liquid Resin Properties
- Laminate properties
- Resin Properties - Unfilled Casting (Cured)
- Note
* Curing Schedule - 24 hrs at 20ºC, 3 hrs at 80ºC
† Curing Schedule - 24 hrs at 20ºC, 5 hrs at 80ºC, 3 hrs at 120ºC
** Made with 4 layers 450g/m2 PB CSM Curing schedule - 24hrs at 20ºC, 16hrs at 40ºC
| Value | Units | Test Method / Conditions | |
| Viscosity (at 25°C, Ferranti shear rate 37.35 s⁻¹) | 4 | Poise | BS 2782 |
| Viscosity (at 25°C, Ferranti shear rate 4.500 s⁻¹) | 2.2 | Poise | BS 2782 |
| Specific Gravity (at 25°C) | 1.1 | — | BS 2782 |
| Acid Value | 17 | mg KOH/g | BS 2782 |
| Volatile Content | 41 | % | BS 2782 |
| Stability (at 20°C) | 3 | Months | BS 2782 |
| Gel Time (at 25°C, using Resin 100 pbw Catalyst M I pbw) | 25 | Minutes | BS 2782 |
| Value | Units | Test Method / Conditions | |
| Glass Content | 28 | % | BS 2782 |
| Tensile Strength | 98 | MPa | BS 2782 |
| Tensile Modulus | 7600 | MPa | BS 2782 |
| Elongation (at break) | 1.7 | % | BS 2782 |
| Flexural Strength | 190 | MPa | BS 2782 |
| Flexural Modulus | 7400 | MPa | BS 2782 |
| Value | Units | Test Method / Conditions | |
| Barcol Hardness (Model GYZ 934-1)* | 42 | — | BS 2782 |
| Deflection Temperature (under load 1.80 MPa) †* | 67 | ºC | BS 2782 |
| Water Absorption (24h, at 23°C)* | 15 | mg | BS 2782 |
| Tensile Strength* | 50 | MPa | BS 2782 |
| Tensile Modulus* | 3800 | MPa | BS 2782 |
| Elongation (at break)* | 1.5 | % | BS 2782 |
| Specific Gravity (at 25°C)* | 1.2 | — | BS 2782 |
| Volumetric Shrinkage* | 8.3 | % | BS 2782 |
Regulatory & Compliance
- Approvals
- Crystic® 2-446PA is approved by Det - Norske Veritas and by Lloyd's Register of Shipping for use in the construction of craft under their survey.
Technical Details & Test Data
- Additives
Certain pigments, fillers or extra styrene may adversely affect the spraying and final properties of Crystic 2-446PA and its variants. Any additions should therefore be evaluated before any large scale use.
- Post Curing
Satisfactory laminates for many applications can be made from Crystic 2-446PA and its variants, by curing at workshop temperature (20ºC). Some increase in properties may be obtained by post curing. The laminates should be allowed to cure for 24 hours at 20ºC, and then be oven cured for 16 hours at 40ºC.
Packaging & Availability
- Packaging Type
- Packaging
Crystic® 2-446PA and its variants are supplied in 25kg and 200kg containers. Bulk supplies can be delivered by road tanker.
Storage & Handling
- Storage
- Crystic® 2-446PA and its variants 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 only be opened immediately prior to use. Where they have to be stored outside, it is recommended that they are kept in a horizontal position to avoid the possible ingress of water.