Rock Well Building Material Hubei Co., Ltd.
| Packaging Details | carton |
| Material | glass fiber + aluminum |
| Color | black + silver |
| length | 5m |
| Application | insulated glass unit |
| After-sale Service | Online technical support |
| Packing | Carton |
| Design Style | MOrdern |
| Certificate | ISO COA |
| Brand Name | Rock |
| Model Number | RY-WE03 |
| Place of Origin | China |
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Product Specification
| Packaging Details | carton | Material | glass fiber + aluminum |
| Color | black + silver | length | 5m |
| Application | insulated glass unit | After-sale Service | Online technical support |
| Packing | Carton | Design Style | MOrdern |
| Certificate | ISO COA | Brand Name | Rock |
| Model Number | RY-WE03 | Place of Origin | China |
Warm Edge Spacer, Glass Fiber Stainless Steel Composite, for Double Glazed Insulated Glass Units 2026 Series
A Fiberglass Warm Edge Spacer, fully named Glass Fiber Reinforced Composite Spacer, might look like plastic, but its internal structure tells a different story.
Base Material: Made of high-performance polypropylene (engineering plastic).
Reinforcement Skeleton: A high proportion of glass fiber is added. This is like adding rebar to concrete, endowing it with remarkable rigidity and dimensional stability, sufficient to support the weight of large-format glass.
Core Barrier: The surface is laminated with a high-barrier film, responsible for preventing moisture ingress and the leakage of inert gas (Argon) from the insulating glass unit.
In simple terms, it uses non-metallic materials to completely cut off the path of heat transfer.
Compared to traditional aluminum spacers, and even other types of warm edge spacers, fiberglass warm edge spacers offer irreplaceable comprehensive advantages:
The equivalent thermal conductivity of fiberglass warm edge spacers is extremely low (≤ 0.19 W/m·K), which is only 1/800th that of aluminum alloy. They effectively increase the temperature at the glass edge by 3-5°C, significantly reducing the overall window heat transfer coefficient (U-value), helping you easily meet national ultra-low energy building standards.
Because the edge temperature is higher, the impact of the indoor-outdoor temperature difference on the glass edge is mitigated. During cold winters, it significantly reduces condensation on window frames, preventing mold growth at the source and providing a drier, healthier living environment for your family.
The coefficient of thermal expansion of fiberglass is very close to that of glass. This means that under extreme heat or cold, the spacer and glass expand and contract synchronously, preventing micro-cracks caused by stress. Combined with the dense barrier film on the back, the annual Argon gas leakage rate is far below national standards, ensuring the insulating glass unit's lifespan exceeds 10 years.
Modern interior design trends favor "large format glass," which imposes high demands on the compressive strength of spacers. Fiberglass warm edge spacers possess a high modulus of elasticity, offering compressive strength far exceeding ordinary plastics. They are perfectly suitable for high-rise curtain walls or oversized floor-to-ceiling windows, ensuring structural safety
| Product Name | Warm Edge Spacer Glass Fiber Stainless Steel Composite, for Double Glazed Insulated Glass Units 2026 Series |
| Deep Processing Depth | Hollow Glass |
| Color | Black Sliver |
| Size | 9-20A |
| HS Code | 7008001000 |
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
2004
Total Annual:
2000000-3000000
Employee Number:
50~100
Ecer Certification：
Site Member
Rock take the lead to adopt the US Thermtool high frequency welding technology , now we have about 25 advanced spacer production lines, more lines will be introduced in future, Rock serves a high-end Aluminum spacer for the insulating glass. Rock now make it headquarter in Beijing. our products a... Rock take the lead to adopt the US Thermtool high frequency welding technology , now we have about 25 advanced spacer production lines, more lines will be introduced in future, Rock serves a high-end Aluminum spacer for the insulating glass. Rock now make it headquarter in Beijing. our products a...
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