Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Composite Materials Functions
- Technologies
- Product Families
Features & Benefits
- Materials Features
- Features and Benefits
- Highly thixotropic
- High strength
- Vinyl ester base
- No sagging on vertical surfaces
- Replaces mechanical fastners
- Excellent adhesion and good elongation at break
Applications & Uses
- Applications
- Recommended Applications
Crestafix 630PA is supplied pre-accelerated, requiring only the addition of catalyst to start the curing reaction. The recommended catalyst is Triganox 239 (or other equivalent catalyst e.g. Butanox LPT-IN), which should be added at 2% v/w into the bonding paste. The catalyst should be thoroughly incorporated into the material with a low shear mechanical stirrer where possible, taking care to keep air entrapment to a minimum. The bonding paste, molding and workshop should all be at, or above, 15°C (59°F) before curing is carried out. Recommended temperature range for application is between 18°C and 25°C (64°F and 77°F). Each surface should be coated with the catalyzed bonding paste and held together until the adhesive has hardened. The use of additional pigments or fillers is not recommended as they can affect the performance of the adhesive.
- Coverage
As a rough guide, 3.3Kg (7.2lbs) of bonding paste will cover one square meter (10.76 ft2) to a depth of approximately 3mm (0.1 inch).
Properties
- Mechanical Properties
- Typical Properties
- Application Properties
- Note
1. Working Time measured with 100g mass of adhesive with 2% Triganox 239 at 25°C (77°F).
2. Fixture time defined using an ISO-4587 GRP lap shear sample, 3 mm bondline thickness with 23°C (73°F) ambient temperature achieving >1.4MPa.
3. As tested to BS ISO 4587.
4. As tested to BS EN ISO 527-2.
5. Measuring using Rotovisco 1 (RV1) at 25°C (77°F) 35mm PP.- Substrates
Crestafix 630PA is suitable for use on GRP laminates, but also can be used on timber and plasterboard. However it is recommended that trials are carried out to ensure adequate bond strengths are obtained.
| Value | Units | Test Method / Conditions | |
| Hardness | 80 - 90 | Shore D | — |
| Heat Deflection Temperature | 60 | °C | — |
| GRP Lap Shear Strength³ | 6.5 - 7.5 | MPa | — |
| Tensile Strength⁴ | 50 - 60 | MPa | — |
| Tensile Elongation⁴ | 2.5 - 3.5 | % | — |
| Tensile Modulus⁴ | 3.7 - 4.2 | GPa | — |
| Value | Units | Test Method / Conditions | |
| Specific Gravity | 1.05 - 1.15 | g/cc | — |
| Viscosity⁵ (0.6 s⁻¹) | 90,000 - 130,000 | cP | — |
| Viscosity⁵ (0.6 s⁻¹) | 950,000 - 1,300,000 | cP | — |
| Value | Units | Test Method / Conditions | |
| Working Time¹ | 50 - 70 | minutes | — |
| Fixture Time² | 180 - 240 | minutes | — |
| Gap Filling | 1 - 25 | mm | — |
| Color Change | Deep Purple to Brown | — | — |
| Time to Peak Exotherm | 110 | minutes | — |
| Peak Exotherm | 90 - 130 | — | — |
Technical Details & Test Data
- Surface Preparation
The surfaces to be bonded should be clean, dry and free from any contamination. It may be necessary to mechanically abrade the surfaces to be bonded in order to obtain the bond strength required.
Packaging & Availability
- Country Availability
- Packaging Type
- Regional Availability
- Packaging Information
Crestafix 630PA is supplied in 25Kg (55lbs) and 225Kg (496lbs) containers.
Storage & Handling
- Shelf Life
- 12 Months
- Storage and Shelf Life
Crestafix 630PA should be stored between 2°C and 23°C (36°F and 77°F) in the original, unopened container in a dry, well ventilated place. Protect from freezing and direct sunlight. Avoid contact with oxidizing agents. The shelf life is defined from date of manufacture when stored as recommended. The expiry date is indicated on product labels.