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Fire-Glazing Compatible Intumescent PVB Interlayer

Fabricating multi-layer fire-rated glass requires extreme precision. Our Fire-Glazing Compatible PVB Interlayer is uniquely formulated to integrate into complex fire-resistant glass systems. It is chemically compatible with the intumescent (expanding) gels used in fire glass. In the event of a fire, this PVB holds the outer protective layers of glass intact long enough for the intumescent gel to activate, expand, and block extreme radiant heat and flames.

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Key Advantages & Benefits

  • Chemical Compatibility: Specially formulated to not react, cloud, or degrade when placed adjacent to fire-rated intumescent gels.
  • Structural Binder: Acts as the strong structural binder holding the multi-ply fire-resistant glass panels together prior to a fire event.
  • Impact Safety: Ensures the heavy fire-rated glass also meets human impact safety standards (preventing injury from accidental bodily collisions).
  • High Clarity: Maintains pristine optical clarity for interior fire doors and egress corridors.

Versatile Applications

  • Fire-rated egress doors and emergency stairwell enclosures
  • Hospital and laboratory fire partitions
  • Commercial building fire-separation walls
  • Server room and hazardous material storage viewing windows

Frequently Asked Questions (FAQ)

Q: Is the PVB itself fireproof?
A: No PVB is truly fireproof (it is a polymer and will eventually melt/burn at extreme temperatures). Its purpose is to structurally hold the glass together so the specialized fire-resistant gels can do their job of blocking the fire.
Q: Can it be used alone for fire rating?
A: No, to achieve a fire rating (e.g., 60, 90, or 120 minutes), it must be used as part of an engineered, tested system involving fire-rated frames and intumescent materials.

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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.