Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Reinforcement Form
- Composite Materials Functions
- Technologies
- Product Families
Features & Benefits
Applications & Uses
- Markets
- Compatible Reinforcements
- Composites End Use
- Formulation Guidelines
- Crystics 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.
- 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 489PA can be approximately determined from below table
Parts of Catalyst M to 100 Parts Resin 1 2 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.
- Additives:
Since the addition of certain pigments, fillers or extra stirene 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.
- Post Curing:
Satisfactory laminates for many applications can be made from Crystics 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.
Properties
- Physical Form
- Appearance
- Blue
- 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 450 g/m² PB CSM Curing schedule - 24hrs at 20ºC, 16hrs at 40ºC
| Value | Units | Test Method / Conditions | |
| Viscosity (at 25°C, 37.35 sec⁻¹) | 4.4 | poise | — |
| Viscosity (at 25°C, 4500 sec⁻¹) | 2.5 | poise | — |
| Specific Gravity (at 25°C) | 1.11 | — | — |
| Volatile Content | 43 | % | — |
| Acid Value | 18 | mg KOH/g | — |
| Gel Time (at 25°C, using 1% Catalyst M or Butanox M50) | 23 | min | — |
| Value | Units | Test Method / Conditions | |
| Glass Content** | 31.8 | % | — |
| Tensile Strength** | 128 | MPa | — |
| Tensile Modulus** | 7700 | MPa | — |
| Elongation at Break** | 2.1 | % | — |
| Flexural Strength** | 212 | MPa | — |
| Flexural Modulus** | 7400 | MPa | — |
| Value | Units | Test Method / Conditions | |
| Barcol Hardness (Model GYZJ 934-1)* | 44 | — | — |
| Deflection Temperature under Load (1.80 MPa) † | 77 | °C | — |
| Water Absorption (24 h, at 23°C)* | 17 | mg | — |
| Tensile Strength* | 76 | MPa | — |
| Tensile Modulus* | 3500 | MPa | — |
| Elongation at Break* | 4 | % | — |
| Specific Gravity (at 25°C)* | 1.2 | — | — |
| Volumetric Shrinkage* | 7.7 | % | — |
Regulatory & Compliance
- Quality Standards
- Approvals
Crystics 489 and 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.
Packaging & Availability
- Packaging Type
- Packaging Information
Crystics 489PA are supplied in 25 kg and 200 kg containers.
Storage & Handling
- Shelf Life
- 3 Months (in dark, at 20°C)
- Storage Conditions
Crystics 489 and 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.