Food grade molded colored silicone button caps, air valve buttons for lunch boxes and food storage containers. Made of pure food-safe silicone, safe for direct food contact. Flexible, good rebound performance, multiple colors available. Custom shapes and sizes are available.
Our food grade silicone button cap is a precision molded silicone air valve button specially developed for lunch boxes and food storage containers. It acts as a venting component while keeping the box sealed, bringing convenient pressure release and reliable sealing performance for food containers.
√ This silicone button cap adopts stepped circular structure with side notches for positioning and anti-rotation. The top surface can be customized with engraved or embossed marks. Made purely from food grade silicone material. We support custom diameter, height, thickness, notch layout and various color options such as yellow, pink, cyan and other custom colors according to your lunch box design.
√ The one-piece molded silicone construction delivers soft touch and stable rebound performance even after thousands of pressing cycles. Food grade silicone is non-toxic, odorless, resistant to high and low temperature, suitable for refrigerator cold storage and microwave heating scenarios. The side notch structure locks the button firmly in position to avoid rotation and displacement during repeated pressing. It can release internal pressure when opening the lunch box while preventing dust, moisture and food residue from entering the container’s valve structure.
√ In summary, these colorful food grade silicone button caps integrate food-safe silicone material, anti-rotation positioning structure and stable vent-sealing function. They are professional custom accessories for lunch boxes and food storage containers, perfectly solving the pressure release and sealing requirements of food containers, a reliable choice for food packaging product assembly.