Automotive window film buyers often look for a balance of heat rejection, visibility and durability. For distributors and installers, choosing a product with clear specifications and reliable performance is essential.
KSB K-4 Series is a 4mil nano ceramic window film designed for these everyday requirements. With four VLT options and a combination of nano materials, it provides different levels of light transmission and solar control for various market preferences.
Nano Ceramic Materials and Core Features
The K-4 Series combines three materials:
- Pure Nano Ceramic
- Nano Titanium Nitride
- Tungsten Oxide
Its main features include:
- High Definition
- High Heat Insulation
- Strong Explosion-Proof Performance
- 5G Compatibility Without Affecting Signal
The 4mil construction distinguishes this series from many conventional thinner ceramic films. Its material combination is designed to provide solar control while maintaining wireless signal compatibility.
For a basic understanding of this product category, see What Is Nano Ceramic Window Film?.
K-4 Series Specifications
The series includes four models with different VLT levels. Buyers can select according to their preferred balance between visibility and heat rejection.
| Parameter | K7095-4 | K3595-4 | K1895-4 | K0895-4 |
|---|---|---|---|---|
| VLT | 70% | 35% | 18% | 8% |
| IRR (950nm) | 92% | 91% | 94% | 93% |
| IRR (1400nm) | 97% | 96% | 97% | 97% |
| UVR | 99% | 99% | 99% | 99% |
| TSER | 55% | 81% | 89% | 93% |
| Thickness | 4mil | 4mil | 4mil | 4mil |
| Color Decay Time | 8 years | 8 years | 8 years | 8 years |
K7095-4 offers the highest VLT at 70%, while K0895-4 has the lowest VLT at 8% and the highest TSER at 93%. K3595-4 and K1895-4 provide options between these two levels.
When comparing solar control performance, it is important to understand that IRR and TSER measure different aspects of heat rejection. Solar Control Film Performance Metrics explains these indicators in more detail.
How It Differs from Other KSB Film Products
KSB also offers specialized film technologies. Their main differences are in material composition and core functions.
| Product | Main Material | Core Function |
|---|---|---|
| K-4 Nano Ceramic | Nano Ceramic | Heat insulation |
| NDC Negative Ion | Negative Ion + Magnetic | Antibacterial |
| TK Titanium Gold | Nano Titanium Gold | Thermal reflection |
These products serve different market needs. K-4 focuses on conventional nano ceramic solar control, NDC combines negative ion and magnetic technologies, while TK emphasizes titanium-based materials and thermal reflection.
What Should Distributors Consider?
When selecting a nano ceramic film for wholesale or private-label business, buyers should pay attention to three key points:
- Product specifications: Compare VLT, IRR and TSER rather than relying on a single performance figure.
- Market demand: Offer suitable VLT options based on local customer preferences and regulations.
- Supply consistency: Confirm product specifications, sample quality, packaging and production arrangements before placing bulk orders.
For additional sourcing considerations, see our guide to How to Source OEM Window Film from China.
FAQ
What is the advantage of 4mil nano ceramic window film?
K-4 features a 4mil construction and a combination of nano materials. Buyers can evaluate its thickness alongside its solar-control and optical specifications.
Which K-4 model provides the highest TSER?
K0895-4 has the highest TSER at 93%, with a VLT of 8%. The other models provide higher light-transmission options.
Does nano ceramic window film affect 5G signals?
K-4 is designed for 5G compatibility without affecting signal transmission.
Further Reading
On this site:
- Nano Ceramic vs Carbon Window Film: Which Is Better? — Compare two common window film technologies.
- How Nano Ceramic Window Film Blocks Heat — Understand the heat-control principle of nano ceramic film.
- How to Test Nano Ceramic Window Film Performance — Learn what to consider when evaluating film performance.
KSB Manufacturing and Wholesale Support
Dongguan Kashibang Film Materials Co., Ltd. was established in 2014, with a 50,000 m² factory, three production lines and an annual production capacity of 80 million m².
- Quality Management Certifications: ISO 9001 and IATF 16949
- Product Compliance: CE and RoHS
KSB provides automotive window film solutions for distributors, wholesalers and private-label brands.
For product details, samples, wholesale orders and OEM cooperation, Contact Us.
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