HEPA filter sealed jelly glue

1.HEPA filter sealed jelly glue application field

HEPA air filter can be widely used in the air supply end air supply of dust-free purification workshops in optical electronics, LCD liquid crystal manufacturing, biomedicine, precision instruments, beverage and food, PCB printing and other industries. Both HEPA and ultra-HEPA filters are used at the end of the clean room. They can be divided into: separators HEPA, mini-plated HEPA, high air volume HEPA, and ultra-HEPA filters.

2.Performance of HEPA filter sealed jelly glue

1) , HEPA filter sealed jelly glue and groove wall adhesion, if you move or remove the filter, the glue will be easily separated from the filter, restore elasticity, and can automatically restore the sealing effect.

2) Excellent weather resistance, excellent chemical stability, corrosion resistance, absorption of stress caused by thermal expansion and contraction without cracking, moderate hardness and good elastic recovery. 

3), the two-component sealed jelly glue is used in a ratio of 1:1, which is convenient to weigh. After mixing, the potting and sealing production is convenient, and no waste gas, waste liquid or waste residue is discharged. 

3.The performance parameters of HEPA filter sealed jelly glue:




Before vulcanization Appearance(A/B component

colourless/Light blue clear liquid

Viscosity(A/B component)mpa.s


Operating performance Operating time≥min


The mixing ratio(A:B)


Vulcanization time H


After vulcanization Needle penetration(25℃)1/100mm


Breakdown resistivity MV/m≥


Volume resistivity Ω.cm≥


Dielectric constant(1MHz)≤


Dielectric loss(1MHz)≤


4.the use of HEPA filter sealed jelly glue:

1), the silica gel and the curing agent are accurately weighed according to a ratio of 1:1;

2) Stir the well-weighed silica gel and curing agent evenly;

3), vacuum, do not vacuum for more than 5 minutes;

4) Pour the vacuumed silica gel into the liquid tank or aluminum tank of the filter;

5), after 3-4 hours, it will solidify.


Post time: Feb-17-2022