The Petaholic portable blackout blind utilizes a high-density 420D Oxford polyester fabric paired with a silver polyurethane coating. While the fabric itself is highly effective at blocking nearly all light, tests show that the suction cup attachment points are the primary mechanical bottleneck. These PVC components are designed for a high initial grip but may lose elasticity and sliding resistance when exposed to glass temperatures exceeding 30°C.
Specifications indicate a lightweight profile of less than 500g, making this a compact choice for travel. However, because the unit lacks a rigid frame, small gaps where light can enter may occur at the edges of the window. The overlock stitch finish on the edges helps maintain the fabric's integrity, but manual trimming is not recommended as it may lead to fraying over time.
Usage Considerations
- Designed for application on non-porous surfaces like glass or smooth plastic.
- Suction reliability is improved by cleaning the window surface thoroughly before installation.
- The silver coating helps manage heat, but the unit is not intended to support the weight of additional curtains.
Summary: This unit provides a functional, lightweight light-blocking solution for temporary needs, though its performance depends heavily on the condition and temperature of the window surface.
If you prefer a mounting system that utilizes magnetic connections rather than suction, you might consider the magnetic shades by Bksai for your home.
You can find a variety of window darkening solutions to help create a better sleep environment in our removable blackout curtain panels section.
