Home / Roller blinds / Blackout fabric blind SILKE - concrete grey (521)
Bematech

Blackout fabric blind SILKE - concrete grey (521)

The average product rating is 5,0 out of 5 stars. 1 rating Rating details

Elegant motorized blackout fabric roller blind in a light concrete gray shade ensures perfect room darkening, maximum privacy, and effective thermal insulation for an undisturbed sleep and maximum comfort throughout the day.

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Blackout fabric blind SILKE - concrete grey (521)
Bematech
The average product rating is 5,0 out of 5 stars. 1 rating Rating details
Fabric roller blind SILKE 521 concrete grey
Easy installation
Easy installation
No wiring or complicated setup. You can install everything yourself in just 20 minutes.
Design and functionality in one
Design and functionality in one
A stylish solution that complements any interior.
Smart control
Smart control
Seamless integration with Apple Home, Google Home, and Alexa thanks to the Matter protocol.
Proven quality
Proven quality
ACCUBLIND builds on more than 25 years of experience from the Bematech brand.

Product detailed description

Do you need a perfectly darkened room for restful sleep, working from home, or movie nights?

Blackout fabric blind SILKE 521 is the ideal solution for those who value privacy and enjoy complete control over the light in an interior. With a single pull, you can create a calm and undisturbed environment exactly when you need it. Thanks to the special blackout structure of the material, the blind blocks up to 99% of light rays, providing perfect darkening even on the brightest days. At the same time, it ensures maximum privacy - no one outside can see into the room, even when the lights are on. 

A concrete grey shade that carries the strength of urban aesthetics, lending the interior a hint of modern architecture and industrial charm.

Blackout fabric blind SILKE - concrete grey (521)

Key benefits of the ACCUBLIND blackout fabric roller blind


Perfect darkening and privacy – the fabric remains completely opaque even with the lights on

Thermal comfort – keeps the room cool in summer and warm in winter

Reduced solar glare - helps protect furniture and flooring from fading

Modern battery drive – wireless operation with no structural modifications required

Easy installation – thanks to the practical mounting system

Proven quality – quality materials, fade resistance, and precise craftsmanship

Control & Motorisation


The blind is equipped with a quiet battery motor, which is controlled by:

  • a remote control
  • or a mobile app

This system is ideal for windows without access to electricity as well as for modern smart homes.

The motor operates very quietly and reliably, so it doesn't disturb the peace of the home even during evening or morning use. 

The battery lasts for up to 6 months with regular use and is easily recharged using a USB-C cable.

Include a six-channel remote control and a charger, so you can start using it immediately after installation.

Blackout fabric blind SILKE - concrete grey (521)

The blackout fabric roller blind is most suitable for bedrooms for uninterrupted sleep, children's rooms for daytime rest, home cinemas for an authentic movie experience, or offices where it is necessary to eliminate unpleasant reflections on the screens. Thanks to excellent insulation properties, it also helps reduce energy costs and maintain a stable temperature in the room throughout the year.

Technical parameters:

Fabric name

SILKE

Fabric code

521

Fabric type

Blackout

Composition

100 % Polyester

Weight

420 g/m²

Thickness

0,55 mm

Color

Concrete grey (521)

Light transmission

0 (perfect blackout)

Fire classification

Class B1 (flame-retardant material according to DIN 4102)

Certification

Oeko-Tex Standard 100


Manufacturer: BEMATECH s.r.o., [Košíkov 76, Velká Bíteš 595 01] | Country of origin: Czech Republic

Frequently Asked Questions

How long does it take to deliver a custom-made fabric blind?

Custom production usually takes 1–2 weeks, then the blind is delivered within 2–3 working days. The total delivery time is therefore typically 2–3 weeks from order confirmation.

ℹ️ Notice: According to § 1837 of the Civil Code, goods made to order cannot be returned.

How to correctly measure for a custom-made blind?

Precise measurement is key to a perfect result. You can install the blind in two ways – and you need to measure accordingly:

1) Measurement for installation into a recess (into an opening)

  • Measure the width at the top, subtract 2–4 mm
  • Measure the height from the top edge to the bottom point, leaving a gap of 5–10 mm at the bottom

2) Measurement for installation in front of the window opening

  • The recommended overlap is at least 30–60 mm on each side
  • Don't forget to add the width of the brackets to the fabric width 
  • Choose the height depending on whether the blind should end above the windowsill or lower


Detailed measurement guide

How to maintain ACCUBLIND fabric blinds?

Maintaining fabric blinds is very easy - just regularly wipe them with a dry cloth or vacuum them on low power. For more stubborn dirt, use a slightly damp cloth with mild cleaning agents. 

⚠️ Attention! This blind is not suitable for washing or ironing.

What is the warranty on ACCUBLIND fabric blinds?

We provide a 2-year warranty on all our fabric blinds. The warranty covers the fabric material, the motor, and the controls.

Category: Roller blinds
Warranty: 3 years
Fabric color: Gray
Fabric colour: gray
Shading level: Full (blackout fabrics)
Název látky: SILKE
barva: betonová šedá

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MP Avatar of author The product rating is 5 out of 5 stars. | 7.12.2025
Se zatemňovací roletou jsem velmi spokojen, naprosto splnila očekávání, prozatím funguje bezchybně.