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 2-420PA should be allowed to attain workshop temperature (18°C-20°C) before use. Stir well by hand, or with a low shear mixer to avoid aeration, and then allow to stand to regain thixotropy. Crystic 2-420PA requires only the addition of catalyst to start the curing reaction, and has a built-in color change mechanism to indicate this. The recommended catalyst is Catalyst M (or Butanox M50) which should be added at 1.5% into the resin.
- Applications
Crystic 2-420PA is designed for hand or spray laminating.
Properties
- Color
- Typical Liquid Resin Properties
- Laminate Properties (Cured)
- Resin Properties - Unfilled Casting (Cured)
- Note
* Curing schedule - 24 hrs at 20°C, 3 hrs at 80°C
** Curing schedule - 24 hrs at 20°C, 16 hrs at 40°C
† Curing schedule - 24 hrs at 20°C, 5 hrs at 80°C, 3 hrs at 120°C
†† Laminate made with 4 layers 450 g/m2 EB mat.
| Value | Units | Test Method / Conditions | |
| Viscosity (at 25°C, 37.35 s⁻¹) | 4.2 | Poise | BS 2782 |
| Viscosity (at 25°C, 4500 s⁻¹) | 2 | Poise | BS 2782 |
| Specific Gravity (at 25°C) | 1.1 | — | BS 2782 |
| Acid Value | 2.2 | mg KOH/g | BS 2782 |
| Stability (at 20°C) | 3 | Months | BS 2782 |
| Gel Time (at 20°C, using 2% Catalyst M (Butanox M50)) | 65 | Minutes | BS 2782 |
| Value | Units | Test Method / Conditions | |
| Water Absorption (24h, at 23°C)†† | 13 - 20 | mg | BS 2782 |
| Elongation (at break)†† | 1.8 - 1.9 | % | BS 2782 |
| Tensile Strength†† | 101 - 108 | MPa | BS 2782 |
| Tensile Modulus†† | 7200 - 7500 | MPa | BS 2782 |
| Flexural Strength†† | 182 - 200 | MPa | BS 2782 |
| Flexural Modulus†† | 5700 - 6200 | MPa | BS 2782 |
| Compressive Strength†† | 156 - 185 | MPa | BS 2782 |
| Value | Units | Test Method / Conditions | |
| Barcol Hardness (Model GYZJ 934-1)* | 41 | — | BS 2782 |
| Water Absorption (24h, at 23°C)* | 16.9 | mg | BS 2782 |
| Deflection Temperature (under load 1.80 MPa)* | 57 | ºC | BS 2782 |
| Elongation (at break)* | 1.3 | % | BS 2782 |
| Tensile Strength* | 44 | MPa | BS 2782 |
| Tensile Modulus* | 3680 | MPa | BS 2782 |
| Barcol Hardness (Model GYZJ 934-1)** | 35 | — | BS 2782 |
| Water Absorption (24h, at 23°C)** | 14 | mg | BS 2782 |
| Deflection Temperature (under load 1.80 MPa)** | 53 | ºC | BS 2782 |
| Elongation (at break)** | 2 | % | BS 2782 |
| Tensile Strength** | 46 | MPa | BS 2782 |
| Tensile Modulus** | 3030 | MPa | BS 2782 |
Regulatory & Compliance
- Approvals
- Crystic® 2-420PA is approved by Lloyd's Register of Shipping for use in the construction of craft under their survey.
Technical Details & Test Data
- Additives
The addition of filler or pigments may adversely affect the hardening of the resin. Users should evaluate the effect of any potential additives before use.
- Post Curing
Satisfactory laminates for many applications can be made with Crystic 2-420PA by curing at workshop temperature (20°C). However, for optimum properties, laminates must be post-cured before being put into service. The molding should be allowed to cure for 24 hours at 20°C, and then be oven-cured for 3 hours at 80°C
Packaging & Availability
- Packaging Type
- Packaging
- Crystic® 2-420PA is supplied in 25 kg and 200 kg containers. Bulk supplies can be delivered by road tanker.
Storage & Handling
- Storage
- Crystic® 2-420PA 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. Where they have to be stored outside, it is recommended that they are kept in a manner that avoids the possible ingress of water.
- Pot Life
Temperature Catalyst M (Butanox M50) 1.0% 1.5% 2.0% 15°C - 100 minutes 74 minutes 20ºC 96 minutes 65 minutes 50 minutes 25ºC 63 minutes 42 minutes - The resin, mold and workshop should all be at, or above, 15°C before curing is carried out.