How to Remove Bubbles from Silicone Rubber?

Why do bubbles form?

Bubbles in silicone rubber are primarily caused by the following reasons:

1. Air incorporation during mixing: The mixing process can easily trap air in the mixture, forming tiny bubbles.
2. Improper pouring method: Pouring silicone rubber from a high height can encapsulate air into the silicone liquid, creating bubbles.
3. Gas generation from chemical reactions: During the curing process, trace amounts of gas may be generated during the curing process, potentially resulting in internal bubbles.

Professional bubble removal methods:

1. Use Air-Zero Bubble Remover:

After mixing the silicone rubber in the mixing cup, place it into the Air-Zero Bubble Remover for bubble removal. This is the fastest and most effective method.

2. Pour the silicone rubber properly:

Reduce the pouring height and pour the silicone rubber into the mold slowly and evenly in a thin stream.

3. Remove the bubble manually:

For existing bubbles, use a thin wooden stick to remove them. Alternatively, gently squeeze or tap/vibrate the mold to allow bubbles to rise to the surface, then lightly blow to pop them.