Heating Polystyrene

[jenSCy]

I have been experimenting with using reclaimed polystyrene as an art medium. I would like to shrink EPS for easier long-term storage by heating it to its glass transition point. However, I am worried about inadvertently releasing styrene vapor.

At what temperature will polystyrene begin releasing styrene vapor, and will it release large enough quantities to pose a threat to human and animal health?

[john125wheeler]

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@jenSCychoiceADVANTAGE wrote:

I have been experimenting with using reclaimed polystyrene as an art medium. I would like to shrink EPS for easier long-term storage by heating it to its glass transition point. However, I am worried about inadvertently releasing styrene vapor.

At what temperature will polystyrene begin releasing styrene vapor, and will it release large enough quantities to pose a threat to human and animal health?

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Hello,

When polystyrene (PS) is heated, it begins to release styrene vapor. The glass transition point of PS is approximately 100°C (212°F) . However, it’s important to note that styrene is a storage hazard above 32°C (89.6°F), and when it decomposes due to heating, it releases acrid smoke and irritating fumes . While the quantities released during typical art-related processes may not pose an immediate threat to health, it’s advisable to work in a well-ventilated area and take necessary precautions.


Best regards,
john125wheeler

[katelyn2598]

When working with polystyrene (PS), it's crucial to be aware of the risks associated with its heating. Polystyrene begins to release styrene vapors when heated, particularly above its glass transition temperature of approximately 100°C (212°F). Styrene vapors can be irritating and, if inhaled in high concentrations, can cause symptoms such as headache, dizziness, and respiratory irritation. While the quantities typically released during art-related processes may not pose an immediate threat to health, it's essential to work in a well-ventilated area to minimize exposure. Additionally, wearing appropriate personal protective equipment, such as gloves and respiratory protection if ventilation is inadequate, is advisable. Being mindful of these precautions helps ensure a safer working environment and reduces the risk of potential health effects associated with styrene exposure from heated polystyrene. Read more 

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