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Identification & Functionality
- Chemical Family
- Polymer Name
- Composite Materials Functions
- Technologies
Features & Benefits
- Materials Features
- Features and Benefits
Crystic 702PAX has excellent mechanical properties and impact resistance. It is compatible with most reinforcement types, including polyaramids, such as Kevlar.
Applications & Uses
- Applications
- Compatible Reinforcements
- Composites Processing Methods
- Recommended Applications
Crystic 702PAX was developed primarily as a Vacuum Injection resin, but its properties make it suitable for use in other, similar techniques. The viscosity and exotherm characteristics of Crystic 702PAX make it particularly suitable for the manufacture of large structures by Vacuum Injection methods. Where longer geltimes are required, Crystic 702PA should be used.
- Formulation Guidelines
Crystic 702PAX 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 catalyst is Catalyst M (or Butanox M50), which should be added at 1% - 2% into the resin. The catalyst should be thoroughly incorporated into the resin, using a low shear mechanical stirrer where possible. Geltimes of Crystic 702PAX and Crystic 702PA, using various catalyst levels, can be approximately determined from the table below.
Pot Life
Temperature Pot Life in minutes using Catalyst M (Butanox M50) Crystic 702PAX Crystic 702PA 1.0 M 2.0 M 3.0 M 1.0 M 2.0 M 3.0 M Pot life in minutes at 15ºC - - 41 - - 120 Pot life in minutes at 20ºC 65 33 25 192 98 67 Pot life in minutes at 25ºC - - 16 - - 40 The resin, mold and workshop should be at, or above 15°C before curing is carried out.
Properties
- Typical Liquid Resin Properties
- Laminate properties
- Resin Properties - Unfilled Casting (Cured)
- Note
* Curing schedule – 24 hours at 20 ºC, 3 hours at 80ºC
† Curing schedule – 24 hours at 20 ºC, 5 hours at 80ºC, 3 hours at 120 ºC
** C.S.M Laminate made with 1 layer Rovicore 600 D3 600 Curing schedule – 24 hours at 20ºC, 16 hours at 40ºC
| Value | Units | Test Method / Conditions | |
| Viscosity (at 25°C) | 1.6 | Poise | BS or BS EN ISO test method |
| Specific Gravity (at 25°C) | 1.08 | — | BS or BS EN ISO test method |
| Volatile Content | 50 | % | BS or BS EN ISO test method |
| Acid Value | 22 | mg KOH/g | BS or BS EN ISO test method |
| Stability (with storage recommendations) | 6 | Months | BS or BS EN ISO test method |
| Gel Time (at 25°C, using 1% Catalyst M (or Butanox M50)) | 65 | Minutes | BS or BS EN ISO test method |
| Value | Units | Test Method / Conditions | |
| Glass Content | 38 | % | BS or BS EN ISO test method |
| Tensile Strength | 115 | MPa | BS or BS EN ISO test method |
| Tensile Modulus | 6600 | MPa | BS or BS EN ISO test method |
| Elongation (at break) | 2.3 | % | BS or BS EN ISO test method |
| Flexural Strength | 180 | MPa | BS or BS EN ISO test method |
| Flexural Modulus | 8250 | MPa | BS or BS EN ISO test method |
| Value | Units | Test Method / Conditions | |
| Barcol Hardness (Model GYZ 934-1)* | 42 | — | BS or BS EN ISO test method |
| Deflection Temperature (under load 1.80 MPa) †* | 74 | ºC | BS or BS EN ISO test method |
| Water Absorption (24h, at 23°C)* | 20 | mg | BS or BS EN ISO test method |
| Tensile Strength* | 44 | MPa | BS or BS EN ISO test method |
| Tensile Modulus* | 3890 | MPa | BS or BS EN ISO test method |
| Elongation (at break)* | 1.2 | % | BS or BS EN ISO test method |
| Specific Gravity (at 25°C)* | 1.2 | — | BS or BS EN ISO test method |
Technical Details & Test Data
- Additives
The addition of fillers or pigment pastes can adversely affect the Vacuum Injection process and also the properties of the cured laminate. Users should seek the advice of Scott Bader’s Technical Service Department before making any additions
- Post Curing
Satisfactory laminates for many applications can be made from Crystic 702PAX by curing at workshop temperature (20°C). For optimum properties, however, 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 16 hours at 40°C or 3 hours at 80°C.
Packaging & Availability
- Packaging Type
- Packaging
- Crystic® 702PAX is supplied in 25kg, 225kg and IBC containers. Bulk supplies can be delivered by road tanker.
Storage & Handling
- Storage
- Crystic® 702PAX 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.