Are those slivers of sunlight interrupting your rest?
Even with high-quality blackout curtains, light gaps on the sides can defeat the purpose. Traditional rigid blockers can be difficult to cut and often fail to seal properly against older or uneven window frames.
Meet the EYUNSTAR Flexible Silicone Solution.
We reimagined the traditional light blocker using premium high-density silicone. It addresses the common installation challenges of rigid tracks: it contours to your window, cuts effortlessly, and seals effectively.

Why Choose Flexible Silicone?
✂️ Zero-Tool Customization: No heavy tools required. Our strips trim cleanly with just a pair of household scissors.
〰️ Perfect for Uneven Walls: Rigid material pops off if your wall has a slight curve. Our flexible silicone conforms to the shape of your window frame for a superior seal.
🔇 Safe & Durable: No sharp edges to scratch your hands or snag curtains. The material is soft to the touch, durable, and odorless[cite: 24].

Select Your Ideal Match:
⚫ The Black Option (Maximum Performance):
Recommended for absolute darkness. The black silicone naturally absorbs light, preventing reflection or glow. Ideal for light-sensitive sleepers and home theaters.
⚪ The White Option (Aesthetic Focus):
Recommended for light-colored interiors. It blocks light gaps while blending seamlessly with white window frames for a clean, integrated look.

📝 Installation Tips for Best Results:
1. Restore Shape: Our flexible silicone is coiled for protection. Please unroll the strips and let them rest flat for 24 hours to straighten fully.
2. Prep the Surface: Wipe your window frame thoroughly to ensure the adhesive bonds directly to the surface.
3. Measure & Apply: Cut to size, peel the backing, and press firmly for a gap-free upgrade[cite: 21].