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Deep Black Total Opaque Privacy PVB Interlayer

When absolute privacy and light blocking are required, our Deep Black Total Opaque Privacy PVB Interlayer is the ultimate solution. Unlike heavily tinted glass which still allows some light transmission, this specialized film blocks 100% of visible light. It creates a sleek, mirror-like black finish on the exterior while providing complete obscurity and security for the interior, all without the need for paints or secondary blackout films.

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Key Advantages & Benefits

  • 100% Light Blocking: Offers zero light transmittance, creating a completely solid black visual barrier.
  • Sleek Aesthetic: Provides a flawless, high-gloss black appearance when viewed from the outside, perfect for modern design.
  • Scratch-Proof Color: Because the black pigment is inside the PVB, it cannot be scratched, peeled, or weathered like surface-applied films.
  • High Impact Security: Functions as a heavy-duty security film, deterring forced entry and keeping broken glass intact.

Versatile Applications

  • Architectural spandrel glass (concealing building structures between floors)
  • VIP and armored vehicle rear passenger windows
  • High-security data centers and cash-counting rooms
  • Cinemas and photographic darkroom windows

Frequently Asked Questions (FAQ)

Q: Will this cause thermal stress on the glass?
A: Yes. Because the deep black PVB absorbs a massive amount of solar heat, it must be laminated using fully tempered glass to prevent thermal stress cracking.
Q: Can it be used on front windshields?
A: No, automotive regulations prohibit opaque materials on front windshields or front-side windows. It is for rear compartments or architectural use only.

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FAQ

What aluminum alloys do you use to make motorcycle engine cases?

We mainly use high-performance aluminum alloys such as ADC12 and A356. The ADC12 is ideal for complex shapes such as side covers due to its excellent flow properties, while the A356 is the first choice for structural parts such as crankboxes that require excellent strength and elongation. We use a spectrometer to confirm the composition of each melt to ensure material stability.

How to ensure the tightness of the engine cover and prevent oil leaks?

Preventing leaks is the core standard we ensure. We control internal density through precise high or low pressure casting parameters. After casting, we perform precision CNC machining on the sealing surfaces and perform pneumatic leak tests on the oil passages and water passages to ensure zero leaks in the assembly.

How long is the delivery lead time for OEM motorcycle engine covers

For new OEM projects, the lead time from mold design to T1 sample delivery is typically 35-50 days. Once samples are approved, our capacity of 5000 tons per year allows us to adjust mass production plans to meet your specific delivery deadlines

What surface polishing options do you provide for motorcycle engine case covers?

Our process includes Shot Blasting and vibration deburring to achieve a clean, matte appearance. At the same time, we can also prepare powder coated or painted surfaces based on the aesthetic requirements of your brand.

Application Background and Use Scenario

Heat Pipe R&D and Sample Preparation


Heat pipe development requires stable and repeatable sample-level processing before entering mass production. During R&D stages, engineers need precise control over heating, degassing, and welding preparation to verify product structure and process feasibility. This equipment is designed to support such sample preparation tasks under controlled conditions.


Process Validation Before Mass Manufacturing


Before scaling up to full production lines, manufacturers often need to confirm welding parameters, heating lengths, and degassing performance. This machine provides a practical platform for process validation, helping reduce risks during later mass production deployment.


Integrated Heating and Degassing Process


The heating process is controlled by both temperature and time, allowing operators to set parameters according to different pipe diameters and material requirements. This helps maintain consistent thermal conditions during sample processing.