Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Composite Materials Functions
- Technologies
Features & Benefits
- Features and Benefits
Crystic VE 673 has a very high heat distortion temperature giving excellent temperature resistance and superior retention of properties characteristics at higher temperatures. Crystic VE 673 is especially resistant to chlorinated media, many solvents and petrol.
Applications & Uses
- Markets
- Composites Processing Methods
- Applications
Crystic VE673 is suitable for the fabrication of fiber reinforced composites by all conventional techniques (contact molding, filament winding, injection molding) and for use in many chemical processing industry applications storage tanks, vessels, ducts, scrubbers and chimneys).
Properties
- Typical Liquid Resin Properties
- Cured Base Resin
- Notes
** Curing Schedule : 24 hrs at 20°C followed by 3 hrs at 80°C.
***Curing Schedule : 24 hrs at 20°C followed by 5 hrs at 80°C and then 3 hrs at 120°C.
| Value | Units | Test Method / Conditions | |
| Acid Value | max. 11 | mg KOH/g | — |
| Viscosity (at 25°C, Brookfield RVT)* | 200 - 300 | mPa.s | — |
| Density (at 20°C) | 1.06 - 1.07 | g/ml | — |
| Color | max. 4 | Gardner | — |
| Volatile Content | 34 - 38 | % | — |
| Gel Time (at 25°C, using 100g resin, 1,0g DMA (10% in Styrene), 0.7g Cobalt toate 3%, 2.0g Butanox LPT)* | 12 - 20 | Minutes | — |
| Time to Peak | 18 - 34 | Minutes | — |
| Peak Exotherm | 176 - 196 | °C | — |
| Value | Units | Test Method / Conditions | |
| Tensile Strength ** | 75 | MPa | — |
| Tensile Modulus** | 3.5 | GPa | — |
| Elongation (at break) ** | 3 | % | — |
| Flexural Strength** | 120 | MPa | — |
| Barcol Hardness ** | 48 | — | — |
| Heat Deflection Temperature*** | 130 | °C | — |
| Water Absorption (7 days)** | 60 | mg | — |
Technical Details & Test Data
- Post Curing
Satisfactory laminates for many applications can be made from Crystic VE 673 by curing at ambient temperature (20°C). For optimum properties and long term performance laminates should be post cured before being put into service. The laminate should be allowed to cure for 24 hours at 20°C and then be oven cured for a minimum of 3 hours at 80°C; the time will be dependent upon the thickness of the laminate. Post curing at 100ï‚°C is advisable for high operating temperatures.
- Chemical Resistance
Crystic VE 673 has excellent chemical resistance to a wide range of substances; (acids, alkalies, oxidizing agents) at room and elevated temperatures and is especially resistant to chlorinated media , many solvents and petrol. Crystic VE 673 has been tested extensively for its resistance to different kinds of fuel and is ideal for use as an inner liner for fuel storage tanks. After total immersion in both leaded and unleaded fuels for 500 hours at 45oC or 6 months at ambient temperature, Crystic VE 673 based laminates retained over 80% of their flexural properties. A separate technical leaflet offers the user a comprehensive guide to the use of Crystic VE 673 based laminates in a wide variety of chemical environments.
Packaging & Availability
- Packaging Type
- Regional Availability
- Packaging
Crystic VE 673 is supplied in 200 kg drums, 1000 kg containers or in bulk by road tanker.
Storage & Handling
- Shelf Life
- 6 Months
- Storage
Resin should be stored in dark. It is recommended that storage temperature should be less than 20°C, but should not exceed 25°C. In addition, it can be recommended that the vinylester resin is weekly aerated with dry and oil free air for 30 minutes through dip pipe (Note: this dip pipe should not contain any zinc or copper alloy). This is done to improve efficiency of inhibitor in order to extend the shelf life of the resin.