Pharmaceutical Gel Seal HEPA Filter

Pharmaceutical Gel Seal HEPA Filter 

Introduce: 

These two gel types provide a physically compliant,

air tight seal between the HEPA filter frame and its housing. 

Both contain similar characteristics in terms of elasticity, surface tack and softness and will perform the basic job of sealing HEPA filters to the air delivery system. 

However there is a wider acceptance of Silicone gels in general HEPA applications.

Silicone gels are produced by several major corporations and are included in a range of electrical, electronic, vibration damping and sealing applications. They are generally more resistant to chemical breakdown and enable higher usage temperatures; but are also relatively high in cost, and may suffer cure inhibition when applied directly to some incompatible substrates.

Polyurethane gels are not commonly used by many HEPA filter manufacturers. Although they are relatively low cost and offer fairly good chemical resistance, commonly cited disadvantages include high moisture sensitivity of the unreacted components resulting in a limited raw material shelf-life, less resistance to chemical breakdown and incompatibility with certain substrates that may result in cure inhibition.

HEPA Filter Condition :

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