• STEK NEX+ 20 window tint shade shown on a car window shape
  • STEK LUNARAY NEX+ premium graphene-infused nano-ceramic window film with 99% UV and SIRR, 69% IRER and TSER
  • Driver in a car with STEK LUNARAY NEX+ window film, showing lifetime warranty, graphene cooling and no signal interference
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STEK

STEK NEX+ 20 Window Film

Size
€1.095,00
€1.095,00
Tax included. Shipping calculated at checkout.

Free delivery over €100 to Ireland & NI

Click & collect from our Galway studio

Tested and used in our detailing studio

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STEK NEX+ 20 window tint shade shown on a car window shape
STEK LUNARAY NEX+ premium graphene-infused nano-ceramic window film with 99% UV and SIRR, 69% IRER and TSER
Driver in a car with STEK LUNARAY NEX+ window film, showing lifetime warranty, graphene cooling and no signal interference

Description

STEK LUNARAY NEX+ 20 Window Film is STEK’s premium graphene-infused nano-ceramic window tint, built for installers and customers who want the best heat rejection, clarity and longevity in the STEK range.

NEX+ uses STEK’s patented Graphene Cooling Technology. Graphene’s honeycomb structure gives exceptional thermal conductivity, dispersing heat efficiently so the cabin stays cooler and the air conditioning has less work to do, even in strong sunlight.

With 22.1% visible light transmittance, NEX+ 20 gives a dark, premium black tone with strong privacy, while blocking 99.8% of UV rays and up to 98.1% of infrared heat. With no metal layers, there’s no signal interference, and it’s backed by a limited lifetime warranty.

Available in a 1.524m roll width.

  • Graphene-infused nano-ceramic construction
  • 22.1% visible light transmittance with a premium black tone
  • Blocks 99.8% of UV rays – certified by the Skin Cancer Foundation
  • Up to 98.1% IR rejection (1400nm) and 68.6% IRER
  • 63% total solar energy rejection (TSER)
  • 75.3% glare reduction
  • No signal interference for phones, GPS and radio
  • High optical clarity with minimal haze
  • Scratch resistant with lasting colour stability
  • Limited lifetime warranty against fading, bubbling and cracking

Specification STEK NEX+ 20
Technology Graphene-infused nano-ceramic
Thickness 1.5mil / 2ply
Visible Light Transmittance 22.1%
Visible Light Reflected — Exterior 5.5%
Visible Light Reflected — Interior 5.5%
Solar Energy Transmittance 14.9%
Solar Energy Reflectance 4.9%
Solar Energy Absorbance 80.2%
IR Rejection — IRER 780–2500nm 68.6%
IR Rejection — SIRR 900–1000nm 90.6%
IR Rejection — SIRR 1400nm 98.1%
UV Rejection 99.8%
Solar Heat Gain Coefficient 0.37
Glare Reduction 75.3%
TSER 63%
Shading Coefficient 0.42
Warranty Limited lifetime

Compare STEK 20% window films

Feature ICY 20 SMART+ 20 NEX+ 20
Technology Metallized Nano-ceramic Graphene nano-ceramic
Visible Light Transmittance 19.9% 22.4% 22.1%
UV Rejection 99.0% 99.8% 99.8%
IR Rejection (1400nm) – 78.2% 98.1%
TSER 48% 54% 63%
Signal Interference Minimal None None
Best For Value privacy tint Ceramic performance Maximum heat rejection

For tint shops and installers who want to offer a true top-tier film, NEX+ 20 delivers the heat rejection, clarity and peace of mind that premium customers expect.

The warranty applies when NEX+ is installed by an authorised STEK Automotive installer or dealer.

Product Details

WHAT IS STEK LUNARAY NEX+ 20?

STEK LUNARAY NEX+ is STEK’s premium window film range, made with patented Graphene Cooling Technology in a nano-ceramic film. Graphene’s honeycomb structure disperses heat very efficiently, so the cabin stays cooler and the air conditioning has less work to do. That makes it a strong choice for EVs and vehicles with large glass areas.

NEX+ 20 is a dark shade with 22.1% visible light transmittance and a premium black tone. With no metal layers, there is no signal interference, and it is backed by a limited lifetime warranty.

PERFECT FOR:
- Premium privacy tint installations
- Customers who want maximum heat rejection
- Electric vehicles and cars with large glass areas
- Rear passenger windows
- Rear windscreens, where legally permitted
- UV protection for occupants and interiors
- Professional tint installers
- Automotive window film services

Product Name: STEK LUNARAY NEX+ 20 Window Film
Type: Automotive window tint film
Series: LUNARAY NEX+
Technology: Graphene-infused nano-ceramic
Thickness: 1.5mil / 2ply
Shade / VLT: NEX+ 20 / 22.1% visible light transmittance
Visible Light Reflected: 5.5% exterior / 5.5% interior
Solar Energy: 14.9% transmittance / 4.9% reflectance / 80.2% absorbance
IRER (780–2500nm): 68.6%
SIRR (900–1000nm): 90.6%
SIRR (1400nm): 98.1%
UV Rejection: 99.8%
SHGC: 0.37
Glare Reduction: 75.3%
TSER: 63%
Shading Coefficient: 0.42
Base Material: Optical-grade PET
Hard Coating: Anti-scratch coating
Adhesive: Urethane-based laminating adhesive, acrylic-based pressure-sensitive adhesive
Liner: Silicone-based liner
Signal Interference: None
Warranty: Limited lifetime against fading, bubbling and cracking (authorised installer)
Application: Interior side of flat and curved automotive glass
Use: Professional automotive window tinting
Brand: STEK

How to use it?

STEK NEX+ 20 is intended for professional interior application on flat and curved automotive glass, by skilled, trained and authorised installers.

Basic installation workflow:
1. Clean the glass thoroughly
2. Prepare the window film and liner
3. Apply slip solution to the glass
4. Position the film on the interior side of the glass
5. Squeegee out solution and air
6. Shrink where required for curved glass
7. Trim and finish edges professionally
8. Allow proper drying and curing time

Pro Tip: Always check local tint laws before installation, especially for front side windows and windscreens.

STORAGE & HANDLING NOTES:
- Store in original packaging
- Keep rolls horizontal
- Avoid direct sunlight during storage
- Avoid extreme temperature ranges
- Do not place heavy objects on top of packaging
- Recommended storage temperature: 20 ±2°C
- Recommended relative humidity: 40–60%

Safety Data Sheet

STEK NEX+ 20 TDS