Overview
SWANCOR 905-2 is a brominated Bisphenol A type epoxy vinyl ester resin. It provides excellent corrosion resistance to a broad range of organic and inorganic acids, alkalis, oxidizing chemicals and salt solutions, as good as standard Bisphenol A type resins. As one of the recommended international brand products in our resin range, it is supplied with supply chain resource support for fabricators sourcing a flame-retardant, corrosion-resistant vinyl ester resin for demanding FRP applications.
Key Benefits of SWANCOR 905-2
- Excellent corrosion resistance to a broad range of organic and inorganic acids, alkalis, oxidizing chemicals and salt solutions
- Very good mechanical strength, including tensile and flexural properties, when reinforced with glass fiber, carbon fiber or kevlar fiber
- Excellent flame retardancy for FRP applications; ASTM E84 Class 1 can be achieved when incorporated with 3-5% antimony trioxide
- Superior toughness with excellent fatigue resistance due to high heat distortion temperature
Applications
SWANCOR 905-2 is used in chemical storage tanks, pipes, fume gas desulfurizing systems (FGD), scrubbers, ducts and grating. It is also used for corrosion resistant flooring when incorporated with aggregates, equipment specified to handle mixtures of air, exhaust gases or potentially flammable liquids, and military applications such as Kevlar fiber based panels. SWANCOR 905-2 can comply with US FDA regulation 21 CFR 177.2440 if the resin is properly formulated and cured, and it can be easily applied by hand lay-up laminating, spray-up, pultrusion, resin transfer molding (RTM) and filament winding, as well as used in polymer concrete casting.
Specification of SWANCOR 905-2 (Liquid Resin)
| Property | Value |
| Appearance | Clear amber liquid |
| Solid Content, % | 58 ± 1.5 |
| Viscosity, cps | 380 ± 100 |
| Specific Gravity | 1.15 ± 0.02 |
| Gel Time, min | 15-25 |
| Shelf Life, months | 6 |
Measurements obtained at 25°C. Viscosity measured LVT-#3-60rpm@25°C. Gel time measured with 6% Cobalt at 0.4phr, 100% DMA at 0.05phr, 55% MEKP at 1.2phr.
Typical Clear Casting Properties of Cured Resin
| Property | Measurement | Test Method |
| Tensile Strength, psi | 11,000-13,000 | ASTM D638 |
| Tensile Modulus, ×10⁵ psi | 5.0-5.4 | ASTM D638 |
| Tensile Elongation, % | 4.5-5.5 | ASTM D638 |
| Flexural Strength, psi | 16,000-19,000 | ASTM D790 |
| Flexural Modulus, ×10⁵ psi | 5.0-5.4 | ASTM D790 |
| Volume Shrinkage, % | 7.5-8.0 | ASTM D2566 |
| Heat Distortion Temperature, °C/°F | 106-110 / 223-234 | ASTM D648 |
| Barcol Hardness | 40 ± 3 | ASTM D2583 |
Cure condition for HDT: 24 hours at room temperature then 2 hours at 105°C.
Flame Retardancy and Ignition Resistance
As a brominated resin, SWANCOR 905-2 is formulated to offer excellent flame retardancy for FRP applications. Per ASTM D2863, the Limiting Oxygen Index is 25 for unfilled laminates and rises to 35 when the laminate is filled with 3% antimony trioxide. In the ASTM E84 Tunnel Test, laminates filled with 3% antimony trioxide (25-30% glass fiber content) achieve a flame spread value of 8.4, and ASTM E84 Class 1 can be reached with 3-5% antimony trioxide loading.
This flame retardancy profile is one reason fabricators consider SWANCOR 905-2 for flue gas desulfurization systems, ducts, and equipment handling mixtures of air, exhaust gases, or potentially flammable liquids, where both chemical resistance and fire performance are required at the same time.
Why Corrosion Resistance and Heat Distortion Temperature Matter
Chemical storage tanks, scrubbers, and flue gas desulfurization systems are routinely exposed to a mix of acids, alkalis, oxidizing chemicals, and salt solutions that can degrade a resin not specifically engineered for chemical resistance. Because SWANCOR 905-2 provides excellent corrosion resistance across this broad range of chemical exposures, it is positioned to maintain structural integrity in demanding service conditions.
A heat distortion temperature of 106-110°C also contributes to superior toughness and excellent fatigue resistance, which matters for equipment that experiences repeated thermal or mechanical cycling, such as pipes, ducts, and grating in a processing environment. Fabricators should always confirm current heat distortion temperature, corrosion resistance data by chemical, and recommended cure schedule against the latest technical data sheet for their specific application.
What to Consider When Sourcing SWANCOR 905-2
When sourcing a flame-retardant, corrosion-resistant vinyl ester resin for chemical storage or processing equipment, fabricators typically evaluate chemical resistance data against their specific process chemistry, mechanical strength when reinforced, flame retardancy requirements, and compatibility with the reinforcement fiber already in use.
Because this resin achieves its mechanical strength when incorporated with reinforcement such as glass fiber, carbon fiber, or kevlar fiber, and its flame retardancy depends on antimony trioxide loading, fabricators should confirm current reinforcement compatibility, filler loading, and laminate schedule recommendations against the latest technical data sheet rather than assuming identical performance across every formulation.
General Handling and Storage Guidance
SWANCOR 905-2 contains organic solvent (styrene) and should be kept away from heat, sparks, and flames. It is a potentially reactive chemical and should be stored in the dark, away from heat and direct sunshine, in closed containers at temperatures below 25°C to ensure maximum stability and maintain optimum resin properties. Copper or copper-containing alloys should be avoided as containers, and containers that are not completely emptied must be closed immediately after use. If SWANCOR 905-2 is blended with cobalt-salt promoters, shelf life will be shortened, and promoted resin must be used within two weeks. Standard packing is 200 kg steel drums.
Where to Source This Product
Thousands Chemicals connects fabricators with SWANCOR 905-2 and related resin products through our digital B2B marketplace. Flame retardancy and chemical resistance for corrosion-resistant equipment are commonly evaluated using test methods published by organizations such as ASTM International. Our team can help confirm packaging, lead times, and technical documentation for your target application and order volume.
Documentation We Can Provide
For buyers evaluating this resin for a new chemical storage, FGD, or corrosion-resistant flooring project, our team can help arrange the current technical data sheet and safety data sheet. Having this documentation in hand before finalizing a design can help avoid delays later in your qualification or approval process.
FAQ
What is SWANCOR 905-2 used for?
It is used in chemical storage tanks, pipes, flue gas desulfurizing systems, scrubbers, ducts and grating, corrosion resistant flooring, equipment handling air/exhaust gas/flammable liquid mixtures, and military applications such as Kevlar fiber based panels.
Is SWANCOR 905-2 flame retardant?
Yes, it is a brominated resin offering excellent flame retardancy for FRP applications, and ASTM E84 Class 1 can be achieved when incorporated with 3-5% antimony trioxide.
What reinforcement fibers can be used with this resin?
It provides very good mechanical strength when incorporated with reinforcement such as glass fiber, carbon fiber, or kevlar fiber.
Does promoting SWANCOR 905-2 shorten its shelf life?
Yes, if blended with cobalt-salt promoters, shelf life is shortened and the promoted resin must be used within two weeks.
Can you provide technical documentation and bulk pricing?
Yes, technical data sheets and SDS documentation are available on request, and our team can provide bulk pricing and lead times based on your target volume and delivery location.
Get a Quote for SWANCOR 905-2
Contact our team for a quote, technical data sheet, or SDS for this flame-retardant, corrosion-resistant vinyl ester resin. We support bulk supply and global shipping for fabricators sourcing SWANCOR 905-2 for chemical storage tanks, pipes, ducts, and corrosion-resistant FRP equipment.
