Crestafire GCS 1001E PA
Established in 1921, Scott Bader has become a worldwide frontrunner in advanced composites, adhesives, and functional polymers, providing innovative solutions across various industries. Founded in 1951 as an employee-owned business, Scott Bader runs a £200 million operation with 750 staff across 7 production facilities and 18 offices worldwide. Crestafire GCS 1001E PA, an intumescent polyester–based gelcoat that is low smoke and fire-retardant, showcases Scott Bader’s dedication to safety, efficiency, and innovation. Engineered for spray application at an exact 450 µm thickness, this gelcoat provides excellent fire protection for rail, construction, and transportation uses, enhancing production efficiency with its pre-accelerated formula.
In this blog entry, we examine Crestafire GCS 1001E PA thoroughly, discussing its features, uses, technical details, and practical benefits, underscoring its significance as a revolutionary material in fire-resistant composite production.
About Crestafire GCS 1001E PA
Crestafire GCS 1001E PA is a pre-accelerated gelcoat based on polyester, designed for spray application in a thin layer of 450 µm. Utilizing cutting-edge intumescent technology, it creates a foamed, cellular char layer upon fire exposure, offering strong protection to the composite surface. Offered in a standard light grey hue and intended for post-painting use, this gelcoat is tailored for applications that demand high standards for fire, smoke, and toxicity (FST) performance. Its pre-accelerated formula streamlines the curing procedure, shortening preparation duration and improving production efficiency. When combined with Crestafire P1-3001PA resin, it reaches excellent fire ratings, which makes it suitable for safety-sensitive settings.
Key Applications
Crestafire GCS 1001E PA is tailored for composite components in industries where fire safety and production efficiency are paramount, particularly in rail applications. Its primary applications include:
- Railway: Achieves HL2 – R1/R7/R10/R17 fire ratings per EN 45545-2:2013 when used with Crestafire P1-3001PA resin, suitable for interior components like wall panels, seating systems, and structural elements.
- Building and Construction: Provides fire-retardant surfaces for public infrastructure, such as railway stations, commercial buildings, and educational facilities, ensuring compliance with safety standards.
- Public Transportation: Enhances safety in buses, trams, and ferries with low smoke and toxicity properties, protecting passengers in confined spaces.
The gelcoat’s spray application ensures uniform coverage, and its compatibility with various laminate constructions makes it versatile for both indoor and outdoor components when post-painted with protective coatings, supporting diverse project requirements.
Key Features and Benefits
Crestafire GCS 1001E PA combines advanced fire protection with streamlined application benefits, making it a top choice for safety-critical composites. Its pre-accelerated formulation and intumescent technology deliver exceptional performance and efficiency in high-stakes environments.
Key Features
- Intumescent Technology: Creates a shielding, foamed char layer when exposed to fire, protecting the composite surface.
- Low Smoke and Toxicity: Complies with strict FST standards, guaranteeing safety in rail and public transportation uses.
- High Fire Ratings: Attains HL2 – R1/R7/R10/R17 according to EN 45545-2:2013 using Crestafire P1-3001PA resin.
- Pre-Accelerated Formulation: Streamlines curing by removing the necessity for extra accelerators, cutting down on preparation time.
- Spray Application: Engineered for consistent coverage at 450 µm, enhancing fire performance and manufacturing efficiency.
- Post-Painting Compatibility: The light grey hue enhances post-painting with protective finishes for outdoor longevity.
- Mechanical Performance: Provides 45 Barcol hardness, 25 MPa tensile strength, and a heat deflection temperature of 60°C.
- Flexible Processing: Facilitates lamination within 24 hours, requiring a minimum of 1 hour for optimal adhesion.
- Extended Stability: Remains stable for 5 months when stored as advised, improving logistics adaptability.
Environmental and Industry Relevance
The crucial need for fire-safe materials in sectors with strict safety and regulatory requirements is met by Crestafire GCS 1001E PA. It is a reliable option for rail and public transportation applications where passenger safety is of utmost importance due to its low smoke and toxicity characteristics, which conform to standards such as EN 45545-2. While preserving exceptional fire performance, the gelcoat’s thin 450 µm coating decreases material utilization, lowering production costs and environmental effect. High-throughput production conditions are supported by its pre-accelerated formulation, which improves manufacturing efficiency. Because it works with a variety of resins and laminate constructions, it allows producers to create strong, lightweight composites for use in everything from construction facades to rail interiors, making public areas safer and more environmentally friendly.
Technical Specifications
Liquid Gelcoat Properties
| Property | Unit | Value |
|---|---|---|
| Viscosity, Brookfield RVT, 25°C, Sp5 / 2.5 rpm | d.Pas | 330–430 |
| Specific Gravity at 25°C | – | 1.4 |
| Stability (from manufacture date, per storage recommendations) | Months | 5 |
| Volatile Content | % | 24.3 |
Cured Gelcoat Properties
| Property | Test Method | Unit | Value |
|---|---|---|---|
| Barcol Hardness | EN59 | – | 45 |
| Water Absorption (24 hrs at 23°C) | BS EN ISO 62 part 6.2 | mg | 53 |
| Heat Deflection Temperature (1.8 MPa) | BS EN ISO 75-2 (1996) | °C | 60 |
| Elongation at Break | BS EN ISO 527-2 | % | 0.8 |
| Tensile Strength | BS EN ISO 527-2 | MPa | 25 |
Curing Schedule: 24 hours at 20°C + 3 hours at 80°C.
Geltimes and Back-up Times
| Temperature | Curing System | Geltime | Back-up Time |
|---|---|---|---|
| 25°C | 1% MEKP 50% | 15–25 minutes | 45–60 minutes |
Note: Geltimes and back-up times are based on laboratory conditions. Alternative catalysts or inhibitors can extend geltimes; contact Scott Bader’s Technical Support Department for customized solutions.
Usage Guidelines
Preparation
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Make sure Crestafire GCS 1001E PA attains 23°C–25°C to achieve optimal spraying results.
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Gently mix by hand or with a low shear stirrer to prevent aeration, redistributing any settled filler, and let it sit to restore thixotropy.
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Incorporate 1.0%–1.5% of medium reactivity MEKP (50%) catalyst and mix thoroughly using a low shear mechanical mixer.
Application
- Method: Use a spray application through an airless spray device (minimum pump ratio 20:1, nozzle size/angle 623/50°) or a gravity-fed pot gun (4–5.5 bar, size 7 or 8 nozzle tip).
- Thickness: Start with a mist coat, then create a consistent wet film thickness of 450 µm in long, steady strokes to enhance fire characteristics.
- Lamination: Apply the initial laminate layer within 24 hours, about 1 hour after the gelcoat has been applied, to guarantee effective adhesion.
- Mold Release: Employ hard wax for mold release, since liquid semi-permanent agents might not be compatible.
- Do:
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Gently mix and keep the workshop temperature between 20°C and 25°C.
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Utilize a thickness of precisely 450 µm for the best fire performance.
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- Don’t:
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Utilize high shear mixers that can break down thixotropy and lead to drainage.
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Use inconsistent thickness or capture vapor in deep mold areas, which could delay curing.
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Post-Curing
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For typical applications, cure at 20°C–25°C for a duration of 24 hours.
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For best fire performance, cure in the oven for 16 hours at 40°C or for 3 hours at 80°C following 24 hours at 20°C.
Manufacturing Considerations
Storage
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Keep in original, unopened containers in a dry, well-ventilated space at temperatures ranging from 5°C to 25°C.
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Shield from frost, direct sunlight, and oxidizing substances.
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The shelf life is 5 months; keeping it outside these conditions greatly diminishes stability.
Packaging
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Offered in 25kg, 225kg, and 1100kg containers, suited for different production levels.
Health and Safety
Why Choose Crestafire GCS 1001E PA?
Crestafire GCS 1001E PA revolutionizes fire safety in composites through its pre-accelerated, intumescent technology, providing outstanding protection for rail, construction, and transportation sectors. Its capability to meet HL2 fire ratings according to EN 45545-2:2013 guarantees adherence to strict rail safety regulations, rendering it a dependable option for high-risk settings. The low smoke and toxicity characteristics of the gelcoat focus on the safety of passengers and occupants, while its pre-accelerated formula simplifies production, cutting down preparation time and boosting efficiency.
Through its slim 450 µm application, Crestafire GCS 1001E PA enhances material efficiency while maintaining fire performance, aiding in cost-effective and sustainable production. Its adaptability, compatibility with various resins, and post-painting features allow for customized, long-lasting composite designs. Supported by Scott Bader’s worldwide technical knowledge and a century of innovation, this gelcoat enables manufacturers to satisfy regulatory requirements, boost safety, and refine production processes, rendering it a vital solution for safer, more sustainable public areas
For further details or technical support, contact Scott Bader.
Disclaimer: All information is based on laboratory testing and is not intended for design purposes. We and Scott Bader makes no warranties regarding this data. Users are responsible for verifying the suitability of products for their specific applications. Availability may vary by region due to regulatory restrictions; contact your local Scott Bader representative for details. For more Information About Lubricants Visit Our Articles
