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Nanjing SiSiB Silicones Co., Ltd.
Nanjing SiSiB Silicones Co., Ltd.
SiSiB® PSA508
SiSiB® PSA508

SiSiB® PSA508 is a high-performance silicone pressure-sensitive adhesive (PSA), consisting of polydimethylsiloxane adhesive and resin diluted in toluene. It features excellent adhesion, peel strength, temperature resistance, moderate viscosity, and strong resistance to moisture and aging.

SiSiB® PSA508

Characteristics


  • >1000 gf/in peel strength to PET substrates.


  • Good peel force stability (5%) after thermal/UV aging tests.


  • No adhesive transfer or residue on PET surfaces.


Physical Properties


Appearance

Transparent liquid

Viscosity 25°C

30000-100000 cP

Solid content

58-62 %

Solubility

Soluble in ethyl acetate and xylene


Guide Mixing Ratio


PSA508:

1000 g

Solvent (Ethyl Acetate)

1000 g

Curing Agent

20-25 g

Curing conditions

170°C, 90-120 Second

Curing Agent: Di(2,4-dichlorobenzoyl) peroxide

Application


  • Electronics: Insulation films, flexible circuit board masking.


  • Industrial: Heat-resistant masking in powder coating or PCB assembly.


  • Automotive: Engine component protection during thermal treatments.


  • Compatibility: Optimized for PET roll applications-verify compatibility with alternative substrates (e.g., PI, PTFE) before scaling up production.

Packing and Storage


SiSiB® PSA508 is supplied in 20Kg plastic drum or 180Kg steel drum.


In the original unopened packaging, SiSiB® PSA508 has a shelf life of 6 months in a dry and cool place.

Documents

DownloadSiSiB® PSA508 Technical Data Sheet
DownloadSiSiB® PSA508 Safety Data Sheet
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