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 397PA should be allowed to attain workshop temperature (18°C - 20°C) before use. It requires only the addition of a catalyst to start the curing reaction. The recommended catalysts are Catalyst M (or Butanox M50) or, where moldings are to be used with foodstuffs, Catalyst O (or Interox LA3). Either catalyst should be added at 2% into the resin and thoroughly dispersed. N.B. For applications involving foodstuffs, thorough catalyst dispersion is vital, as any undercure in the laminate is a potential source of tainting.
- Recommended Applications
Surfaces in contact with aggressive environments should be made resin rich by incorporating a surfacing tissue, or a layer of Crystic Gelcoat 69PA. Alternatively, fabric backed polypropylene (e.g. Celmar®) or certain grades of uPVC can be used, backed with glass fiber reinforced Crystic 397PA. Performance figures for fully cured Crystic 397PA laminates, in more than 200 chemical environments, are shown in Technical leaflet No. 145 “Safe Chemical Containment”.
Properties
- Color
- Typical Liquid Resin Properties
- Laminate properties
- Resin Properties - Unfilled Casting (Cured)
- Note
* Curing Schedule 24 hours at 20°C, 3 hours at 80°C
† Curing Schedule 24 hours at 20°C, 5 hours at 80°C, 3 hours at 120°C
** Made with 4 layers 450g/m2 PB CSM Curing Schedule 24 hours at 20°C, 16 hours at 40°C
*** Made with 4 layers 450g/m2 PB CSM Curing Schedule 24 hours at 20°C, 3 hours at 80°C
| Value | Units | Test Method / Conditions | |
| Viscosity (at 25°C, 37.35 s⁻¹) | 5 | Poise | BS 2782 |
| Viscosity (at 25°C, 4500 s⁻¹) | 2.4 | Poise | BS 2782 |
| Specific Gravity (at 25°C) | 1.05 | — | BS 2782 |
| Volatile Content | 49 | % | BS 2782 |
| Acid Value | 13 | mg KOH/g | BS 2782 |
| Gel Time (at 25°C, using 2% Catalyst M) | 8 | Minutes | BS 2782 |
| Value | Units | Test Method / Conditions | |
| Glass Content** | 31 | % | BS 2782 |
| Tensile Strength** | 92 | MPa | BS 2782 |
| Tensile Modulus** | 7500 | MPa | BS 2782 |
| Elongation (at break)** | 1.5 | % | BS 2782 |
| Flexural Strength** | 172 | MPa | BS 2782 |
| Flexural Modulus** | 6600 | MPa | BS 2782 |
| Glass Content*** | 30 | % | BS 2782 |
| Tensile Strength*** | 95 | MPa | BS 2782 |
| Tensile Modulus*** | 7000 | MPa | BS 2782 |
| Elongation (at break)*** | 1.7 | % | BS 2782 |
| Flexural Strength*** | 170 | MPa | BS 2782 |
| Flexural Modulus*** | 6400 | MPa | BS 2782 |
| Value | Units | Test Method / Conditions | |
| Barcol Hardness (Model GYZ 934-1)* | 44 | — | BS 2782 |
| Deflection Temperature (under load 1.80 MPa) †* | 117 | ºC | BS 2782 |
| Water Absorption (24h, at 23°C)* | 19 | mg | BS 2782 |
| Tensile Strength* | 60 | MPa | BS 2782 |
| Tensile Modulus* | 3300 | MPa | BS 2782 |
| Elongation (at break)* | 2.5 | % | BS 2782 |
| Specific Gravity (at 25°C)* | 1.16 | — | BS 2782 |
| Volumetric Shrinkage* | 9.5 | % | BS 2782 |
Regulatory & Compliance
- Approvals
Crystic 397PA is approved by Wine Laboratories Ltd for vessels to contain Wines and sherries up to 25% alcohol content.
Technical Details & Test Data
- Additives
Crystic 397PA may be pigmented by the addition of up to 5% Crystic Pigment Paste. Certain pigments, fillers or extra styrene can adversely affect the food taint, toxicity and chemical resistant properties of Crystic 397PA. Customers should therefore satisfy themselves that any additions made willl give the performance required.
- Post Curing
Satisfactory laminates for many applications can be made with Crystic 397PA by curing at workshop temperature (20°C). However, for optimum chemical, water and heat resistant properties, laminates must 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 3 hours at 80°C. Moldings which are to be used with foodstuffs should be allowed to cure for 24 hours at 20°C and then be oven cured for a minimum of 3 hours at 85°C. They should be thoroughly wet-steam cleaned for at least one hour prior to use. If wetsteam cleaning is not practical, suitably shaped moldings can be filled with hot water (60°C- 80°C) containing nonperfumed detergent. After 2 hours, they should be emptied and thoroughly rinsed with several batches of clean hot water. These precautions are essential to avoid the tainting of foodstuffs.
Packaging & Availability
- Packaging Type
- Packaging
- Crystic® 397PA is supplied in 25kg and 200kg containers. Bulk supplies can be delivered by road tanker
Storage & Handling
- Shelf Life
- 6 Months
- Storage
- Crystic® 397PA should be stored between 5°C and 25°C in the original, unopened container in a dry, well ventilated place. Protect from freezing and direct sunlight. Avoid contact with oxidizing agents. If stored outside of these recommendations, shelf life will be significantly reduced.
- Pot Life
Pot Life
Parts of Catalyst to 100 Parts Resin M (or M50) 2.0 O (or LA3) 2.0 Pot life in Minutes at 15°C 40 90 Pot life in Minutes at 20°C 20 45 Pot life in Minutes at 25°C 8 14 The resin, mold and workshop should be at, or above, 15°C before curing is carried out.