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Premium Aluminum & Butyl Spacer Bars for Insulated Glass Units

Rock Well Building Material Hubei Co., Ltd. is a leading manufacturer of high-quality spacer bars and glass accessories in China. With over 22 years of experience and 25 advanced production lines, we deliver reliable, durable, and innovative solutions for double glazing and architectural glass applications worldwide.

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Who We Are

Rock Well Building Material Hubei Co., Ltd. is one of the top three spacer bar manufacturers in China. Since our inception over 25 years ago, we have specialized in producing high-performance aluminum spacer bars, butyl spacer bars, and a full range of insulated glass accessories.

We were the first in China to adopt US Thermtool high-frequency welding technology, ensuring superior quality and consistency. Our headquarters are based in Beijing, and our products are trusted by clients across Europe, North America, the Middle East, and Asia.

25+
Production Lines
22+
Years Experience
7x24
Customer Support
4-40A
Spacer Sizes
Factory Production Product Detail Glass Unit

Our Top Products

Explore our comprehensive range of high-quality spacer bars, sealants, connectors, and accessories designed for durability, thermal efficiency, and ease of installation.

Aluminum Spacer Bar

Aluminum Spacer Bar 4-40A

High-purity 1100/3003 alloy, bendable, corrosion-resistant. Ideal for UPVC and aluminum windows.

  • • Size: 4mm to 40mm
  • • Surface: Anodized, painted, golden
  • • Smooth welding line
Get Best Price
Butyl Spacer Bar

Butyl Spacer Bar

Solvent-free butyl sealant with excellent adhesion and anti-fogging properties.

  • • UV and weather resistant
  • • No corrosion, no oxidation
  • • For double glazing units
Get Best Price
Windows Georgian Bar

818 Black/White/Golden Georgian Bar

Decorative leaded glass spacer with UV-proof plastic patterns. Fits insulated glass units.

  • • Size: 8*18mm
  • • Color: Black, White, Golden
  • • Warranty: 1 Year
Get Best Price
Warm Edge Spacer Bar

Warm Edge Spacer Bar

Composite aluminum spacer with molecular sieve and flexible butyl for improved thermal insulation.

  • • Reduces heat loss
  • • Prevents condensation
  • • Online technical support
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Plastic Corner Connector

Plastic Corner Connector

Durable black/gray/white plastic corner keys for aluminum spacer bars. Easy to install.

  • • Size: 6A-27A
  • • Material: High-strength plastic
  • • For insulating glass units
Get Best Price
Butyl Sealant Tape

Butyl Sealant Tape

High-performance butyl tape for sealing insulated glass units. Solvent-free and non-fogging.

  • • Excellent adhesion
  • • Long-lasting durability
  • • Suitable for all climates
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Molecular Sieve Desiccant

Molecular Sieve Desiccant

High-efficiency 3A/4A desiccant for moisture absorption in double glazing units.

  • • Prevents fogging
  • • Long service life
  • • Packed in sealed containers
Get Best Price
Cork Pad

Cork Pad

Natural cork pads for glass support and vibration damping in window frames.

  • • Eco-friendly material
  • • Excellent insulation
  • • Prevents glass breakage
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Why Choose Rockaluspacer?

High Quality

Shiny surface, smooth welding line, and fade-resistant golden color for up to 5 years under sunlight.

Fast Production

25+ advanced production lines ensure fast turnaround and large-scale supply capacity.

One-Stop Solution

Full range of IGU accessories: spacers, sealants, desiccants, connectors, and machines.

24/7 Support

Our team provides round-the-clock online support and technical assistance.

25+
Production Lines
22+
Years in Business
4-40A
Spacer Sizes
100+
Global Clients

Frequently Asked Questions

What materials are your aluminum spacer bars made from?

Our aluminum spacer bars are made from high-purity 1100 or 3003 aluminum alloy, known for excellent formability, corrosion resistance, and thermal performance.

Do you offer custom sizes and colors?

Yes, we offer a wide range of sizes from 4mm to 40mm and various surface finishes including anodized, painted, and golden. Custom orders are welcome.

What is the warranty on your products?

Most of our products come with a 1-year warranty. We also offer online technical support and return/replacement services where applicable.

How do I place an order?

You can request a quote directly through our official website or contact our sales team via WhatsApp or email for detailed assistance.

Get in Touch

For inquiries, quotes, or technical support, please visit our official website to contact us directly.

Contact Information

Jenny Yang - Sales Representative

Rock Well Building Material Hubei Co., Ltd.

+8617701124070 (WhatsApp)

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