Glass Laminating Room / Safety Glass

Impact of Uncontrolled Humidity

Uncontrolled humidity adversely affects the bonding and clarity of safety glass. Moisture absorption by the hygroscopic film used in safety glass can result in improper bonding between glass layers and reduce the clarity of the glass, compromising its safety features.

Consequences of High Humidity

High humidity levels lead to increased moisture absorption by the hygroscopic film, causing improper bonding between glass layers and reducing the clarity of safety glass. This compromises the safety and effectiveness of the product, posing risks in automobile and construction applications.

Additional Effects

Excessive moisture absorption can create bubbles between the layers of glass, further diminishing clarity and weakening the bond. This not only compromises the safety of the glass but also affects its overall aesthetic appeal and structural integrity.

Causes of Uncontrolled Humidity

Uncontrolled humidity arises from the hygroscopic nature of the adhesive film (PVB film) used in safety glass. During storage and assembly processes, this film tends to absorb moisture, leading to trapped moisture between glass layers and subsequent bonding issues.

Recommendation

To ensure the quality and safety of safety glass, it is recommended to maintain the relative humidity (RH) level in the glass laminating area at 20-22% with a temperature of 20°C (68°F). Controlling humidity levels during storage and assembly processes is essential to prevent moisture-related defects in safety glass.

Solution

Josem’s Rotary Desiccant Dehumidifiers provide an effective solution for controlling humidity levels during the manufacturing, storage, and assembly of safety glass. By creating a low humidity environment, Josem’s desiccant dehumidifiers prevent moisture absorption by the adhesive film, ensuring proper bonding and clarity of the glass. This helps in maintaining the safety and integrity of safety glass products in automobile and construction industries.