Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Composite Materials Functions
- Technologies
Features & Benefits
- Materials Features
- Features and Benefits
The viscosity properties of Crystic 990PA enable it to accept high filler loadings whilst maintaining excellent spray characteristics. It forms a tenacious bond with ABS acrylic.
Applications & Uses
- Markets
- Applications
- Compatible Polymers & Resins
- Composites Processing Methods
- Recommended Applications
Crystic 990PA has been developed for use as a filled system in reinforcing ABS acrylic lined baths and is designed for spray laminating.
- Formulation Guidelines
Crystic 990PA should be allowed to attain workshop temperature (18°-20°C) before use. Calcium carbonate (or similar) filler should be added to the un-catalyzed resin, at a level of 50% by weight, and thoroughly dispersed. The mix requires only the addition of a catalyst to start the curing reaction and the recommended catalyst is Catalyst M (or Butanox M50). The catalyst should be added at a level of 1%, based on the weight of resin in the filled mix, and thoroughly dispersed. A low shear mechanical mixer should be used, where possible.
- Pot Life
Temperature Pot Life with 1% Catalyst M 15ºC 10 minutes 20ºC 8 minutes 25ºC 6 minutes The resin, mold and workshop should be at, or above, 15°C before curing is carried out. Catalyst levels and temperature are critical in this application, as prolonged exposure to uncured resin will result in solvent attack on the ABS surface.
- Application Guidelines
Filled Crystic 990PA and chopped glass should be spray applied to the ABS face of the molded bath to a thickness of approximately 3mm. The resin should begin to gel within 10 to 15 minutes, to avoid solvent attack on the ABS surface.
Properties
- Color
- Typical Liquid Resin Properties
- Resin Properties - Unfilled Casting (Cured)
- Note
*Curing schedule - 24hrs at 20ºC, 3hrs at 80ºC
†Curing schedule - 24hrs at 20ºC, 5hrs at 80ºC, 3hrs at 120ºC
| Value | Units | Test Method / Conditions | |
| Viscosity (at 25°C, 92.5 s⁻¹) | max. 0.8 | Poise | — |
| Specific Gravity (at 25°C) | 1.1 | — | — |
| Volatile Content | 45 | % | — |
| Stability (at 20°C) | 3 | Months | — |
| Gel Time (at 25°C, using 1% Catalyst M) | 6 | Minutes | — |
| Value | Units | Test Method / Conditions | |
| Barcol Hardness (GYZJ 934-1)* | 39 | — | — |
| Deflection Temperature (under load 1.80 MPa) †* | 49 | ºC | — |
| Water Absorption (24h, at 23°C)* | 18 | mg | — |
| Tensile Strength* | 42 | MPa | — |
| Tensile Modulus* | 2990 | MPa | — |
| Elongation (at break)* | 1.9 | % | — |
Technical Details & Test Data
- Additives
We do not recommend the addition of pigment paste to Crystic 990PA, due to the difficulty in obtaining specific colors in a filled mix. The addition of any pigment or other additives may affect the properties of the resin
- Post Curing
Satisfactory laminates for many applications can be made with Crystic 990PA by curing at workshop temperature (20°C). For optimum properties and long term performance, however, laminates should be post cured before being put into service. Moldings should be allowed to cure for 24 hours at 20°C, and then be oven cured for 16 hours at 40°C.
Packaging & Availability
- Packaging Type
- Packaging
- Crystic® 990PA is supplied in 25kg and 200kg containers. Bulk supplies can be delivered in 1 ton containers.
Storage & Handling
- Storage
- Crystic® 990PA 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.