▶ Why Agreed Expanded Polystyrene Fire Rating Is Utilized For The Construction of Fire Resistant Safety Parts?
Daruwin's Expanded Polystyrene Fire Rating is an EPS granule developed specifically for fire-resistant safety components. But it's not the average type that you can find in a package. Special adjustments have been made to the density, structure, closed-cell ratio, and foaming stability of the product in order to specifically cater to safety components. These are safety first components resistant to fire, such as fire stops in electromechanical equipment, fire-resistant barricade structures, temperature-resistant protective components inside electrical boxes, and lightweight fillers in fire protection systems, which have a lot in common: they should not be deformed, be water-resistant, not soften at the temperature, have enough strength, and not be too heavy to burden the equipment. Expanded Polystyrene Fire Rating is the one that has all these properties, and Daruwin's Expanded Polystyrene Fire Rating besides these also adds temperature resistance, stability, and moisture resistance to the list of advantages.

▶ What Are The Purposes Of Expanded Polystyrene Fire Rating?
At the first glance, one would take Expanded Polystyrene Fire Rating for just small granules, however, once on the production line, they can be foamed and shaped into various types of fire-resistant safety components with diverse applications. The most common application of EPS Fire Retardant Expandable Polystyrene Bead in equipment engineering is the processing into the lightweight insulating components inside the machine enclosures, the fire-resistant inner cores, or the high-temperature resistant insulation fillers used to isolate the heat sources, reduce the temperature fluctuations, and lower the total weight of the equipment. In the electrical industry, EPS Fire Retardant Expandable Polystyrene Bead may serve as high-temperature resistant structural parts, light and strong support elements, or shock-absorbing inserts in electrical control boxes due to EPS Fire Retardant Expandable Polystyrene Bead having a low thermal conductivity and being water-resistant, thus safe and stable for electrical systems.
▶ What Makes EPS Fire Retardant Expandable Polystyrene Bead The Most Ideal Option For Fire Safety Components?
One of the most important reasons for Daruwin's Flame Retardant Eps Bead being the most suitable for the fire safety components is its extremely high closed-cell structure, which is more than 90%, so practically, it is almost non-absorbent and does not absorb moisture. Among all the deformations, the fire safety components are the most vulnerable to the perfor-mance degradations that result from moisture exposure. Flame Retardant Eps Bead demonstrates a good thermal stability; it is not softened, de-formed, or shrunken even at 65℃, so, generally, it is the most dependable for the buffering structures that are temperature resistant. The internal structure after expansion is also very consistent, so it is both light in weight and strong. The ratio of the foaming from 40–70 times allows the lightweight components to remain while the possibility of a collapse is avoided.

▶ Product Parameters:
| Closed-cell rate | ≥ 90% |
| Water absorption rate | ≤ 2% (tested at 25℃) |
| Temperature resistance test | No abnormalities at 65℃ |
| Particle morphology | Uniform spherical shape and good flowability |
| Adjustable portion | Density and particle size can be customized according to different component requirements |
Daruwin's flame-retardant Eps bead material gives an overall impression of being "lightweight yet sturdy". The flame-retardant Eps bead structure after the mixture does not become loose and soft, on the contrary, it has a resilient and elastic texture - it is not easily bent or compressed. In safety components, the impact energy can be absorbed by the part, which is then dispersed over the surface of the component without any energy being released rapidly. Besides that, the flame-retardant Eps bead also has an impressive compressive strength; its lightness doesn't result in the load being increased, but it can still resist deformation at the crucial moment, which especially safety components that are operating for long periods., are very important.
▶ Process Compatibility:
Talking about processing compatibility, this EPS material is the one, "the factory becomes more comfortable with it the more it is used". All its particle are sphercal and uniform which impedes the generation of different size particles during the foaming process thus the frequency of the equipment adjustment is less and the production line is more stable. Whther it is molded or cut by CNC, the density of the foamed structure is the same, thus the formation of the soft middle and hard edges common in some materials is avoided. It results in more precise cut edges, thus slot structures or insert processing with complex geometries can be done more efficiently.

▶ Our Factory's Strength
We are a large-scale milled EPS manufacturing factory, a production base that sprawls 185 acres and has an annual capacity of 240,000 tons. All processing steps starting from raw material foaming to finishing product shipping along with quality control and lab testing are done inside the facility. The base which is situated close to Fushun Petrochemical is able to take the advantage of a stable supply of raw materials as well as saving on transport and logistics cost. We are always vigilant about the R&D for the future and keep on working on structural and performance tweaking of each EPS product for multi-functional application scenarios.
Packaging and Logistics
Our standard packaging uses 25kg woven bags made of a fabric that includes PE layers within it for protection against moisture and water. If you are working in foreign trade or have large-volume needs, here are the facilities that we can offer you: 500 to 1000 kg ton bags; Pallet + stretch wrap packaging Export-grade label and box marking customization Facilitated domestic trucking as well as export logistics facilitation plus delivery on time is also extended to large volumes.

FAQ
Q: Is Flame Retardant Eps Bead too "soft" for safety components?
A: Daruwin's Flame Retardant Eps Bead can have its density and foaming ratio changed, so that it is a very good material for use in load-bearing and support components.
Q: Can Flame Retardant Eps Bead be made flame-retardant?
A: A single Flame Retardant Grade Eps Bead can be part of a system together with other components providing the overall flame-retardant effect to the system. We also have the processing technology for the flame-retardant products.
Q: Does Flame Retardant Grade Eps Bead require different molds of high quality?
A: F.R. Grade Eps Bead is a material which doesn't have any special requirements for mold. Most factories which produce safety components can use it directly.
Q: Can the temperature have an effect on the deformation of the products made from the Flame Retardant Grade Eps Bead?
A: Flame Retardant Grade Eps Bead is heat resistant up to 65℃ and at the same time cold and hot cycling environments do not affect its shape.
About Us:
Daruwin is a large-scale enterprise specializing in energy-saving and environmentally friendly materials. We have a stable production capacity and a base of 185 acres. With the advanced domestic graphite-grade EPS production lines, which are capable of producing 240,000 tons annually, we are well-equipped. Our products can be applied in exterior wall insulation, cold chain logistics, and packaging industries as they have excellent thermal insulation and flame-retardant properties. Our experienced R&D team is also very flexible and can easily accommodate customer requests by developing materials for specific applications.
