Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Composite Materials Functions
- Technologies
Features & Benefits
- Materials Features
Applications & Uses
- Markets
- Formulation Guidelines
Crystics 489 and 489PA should be allowed to attain workshop temperature (18ºC-20ºC) before use. Crystic 489PA needs only the addition of a catalyst to start the curing reaction. The recommended catalyst is Catalyst M (or Butanox M50). The catalyst should be added at 1% or 2% into the resin and thoroughly dispersed, shortly before use.
Crystic 489 requires the addition of a catalyst and an accelerator to start the curing reaction.
N.B. Catalyst and accelerator must not be mixed directly together since they can react with explosive violence.
The recommended catalyst is Catalyst M (or Butanox M50), which should be added at 2% into the resin, and thoroughly dispersed. Shortly before use, 4% of Accelerator E should be stirred into the catalyzed resin.
The geltimes of Crystics 489 and 489PA can be approximately determined from Table 1:-
Pot Life
Table I - Crystic 489Parts of Catalyst M to 100 Parts Resin 1.0 2.0 Pot life in minutes at 15ºC 60 24 Pot life in minutes at 20ºC 40 18 Pot life in minutes at 25ºC 23 12 The resins, mold and workshop should all 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, 37.35 s⁻¹) | 4.4 | Poise | BS 2782 |
| Viscosity (at 25°C, 4500 s⁻¹) | 2.5 | Poise | BS 2782 |
| Specific Gravity (at 25°C) | 1.11 | — | BS 2782 |
| Volatile Content | 43 | % | BS 2782 |
| Acid Value | 18 | mg KOH/g | BS 2782 |
| Stability (in dark at 20°C) | 3 | Months | BS 2782 |
| Gel Time (at 25°C, using 1% Catalyst M (or Butanox M50)) | 23 | Minutes | BS 2782 |
| Value | Units | Test Method / Conditions | |
| Glass Content | 31.8 | % | BS 2782 |
| Tensile Strength | 128 | MPa | BS 2782 |
| Tensile Modulus | 7700 | MPa | BS 2782 |
| Elongation (at break) | 2.1 | % | BS 2782 |
| Flexural Strength | 212 | MPa | BS 2782 |
| Flexural Modulus | 7400 | MPa | BS 2782 |
| Value | Units | Test Method / Conditions | |
| Barcol Hardness (Model GYZ 934-1)* | 44 | — | BS 2782 |
| Deflection Temperature (under load 1.80 MPa) †* | 77 | ºC | BS 2782 |
| Water Absorption (24h, at 23°C)* | 17 | mg | BS 2782 |
| Tensile Strength* | 76 | MPa | BS 2782 |
| Tensile Modulus* | 3500 | MPa | BS 2782 |
| Elongation (at break)* | 4 | % | BS 2782 |
| Specific Gravity (at 25°C)* | 1.2 | — | BS 2782 |
| Volumetric Shrinkage* | 7.7 | % | BS 2782 |
Regulatory & Compliance
- Quality Standards
- Approvals
Crystic 489PA are approved by Lloyd’s Register of Shipping for use in the construction of craft under their survey, and by Det Norske Veritas. They also meet the requirements of B.S.3532:1990, Type B.
Technical Details & Test Data
- Post Curing
Satisfactory laminates for many applications can be made from Crystics 489 and 489PA by curing at workshop temperature (20ºC). For optimum properties and long term performance, however, laminates should be post cured before being put into service. The laminate should be allowed to cure for 24 hours at 20ºC and then be oven cured for 3 hours at 80ºC or 16 hours at 40ºC.
- Additives
Since the addition of certain pigments, fillers or extra styrene may adversely affect the properties of Crystics 489 and 489PA, users are urged to seek the advice of our Technical Service Department before making any such additions.
Packaging & Availability
- Packaging Type
- Packaging
- Crystic® 489PA is supplied in 25kg, 225kg drums, and 1125kg intermediate bulk containers. Bulk supplies can be delivered by road tanker.
Storage & Handling
- Storage
Crystic 489PA should be stored in the dark in suitable closed containers. It is recommended that the storage temperature should be less than 20ºC where practical, but should not exceed 30ºC. Ideally, containers should be opened only immediately prior to use