The typical pot life range at 25°C for screen printing silicone is usually between 30 minutes and 2 hours, depending on the specific formulation and manufacturer.
Factors Affecting Pot Life:
Silicone Type: Different silicones (e.g., platinum-cured or tin-cured) have varying pot life ranges. Platinum-cured silicones, commonly used for screen printing, often fall within this range.
Catalyst Ratio: The ratio of Part A to Part B (or catalyst) can influence pot life. A higher catalyst concentration typically reduces pot life.
Additives: Retarders or accelerators mixed into the silicone can extend or shorten the pot life.
Application Requirements: Some formulations are designed specifically for faster curing, offering a shorter pot life when speed is critical.
Recommendations:
Always check the technical datasheet provided by the manufacturer for the exact pot life specifications.
Work efficiently within the pot life to avoid curing issues in the screen printing process.