Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Dow DOWSIL 7645 Pressure Sensitive Adhesive

Dow DOWSIL 7645 Pressure Sensitive Adhesive is a high-performance silicone-based PSA from Dow’s DOWSIL™ portfolio. Designed for demanding bonding applications, it offers excellent thermal stability, UV resistance, and adhesion to low-energy surfaces. Ideal for medical devices, electronics, and automotive components requiring long-term reliability under harsh conditions.
  • dow dowsil 7645 pressure sensitive adhesive_40c57440
  • dow dowsil 7645 pressure sensitive adhesive_40c57440

Features Of Dow DOWSIL 7645 Pressure Sensitive Adhesive

  1. High-performance silicone-based pressure-sensitive adhesive offering excellent adhesion to low-surface-energy substrates including fluoropolymers and siliconized release liners.

  2. Outstanding thermal stability with continuous service capability up to 200 °C and short-term resistance to 250 °C.

  3. Consistent peel adhesion and shear holding power across wide temperature and humidity ranges.

  4. Low extractables and high purity—suitable for demanding applications in medical device assembly and electronics manufacturing.

  5. Easy solvent-based coating process compatibility with standard gravure, reverse-roll, or slot-die application equipment.

Typical Applications Of Dow DOWSIL 7645 Pressure Sensitive Adhesive

  1. High-temperature masking tapes for aerospace composite curing and paint-bake operations.

  2. Release liner–backed labels and functional tapes in medical diagnostics and wearable sensor assemblies.

  3. Bonding of silicone elastomers and polyimide films in flexible printed circuit (FPC) fabrication.

  4. Thermal interface tapes for power electronics requiring long-term reliability under thermal cycling.

  5. Die-cut gasketing and sealing components for LED lighting and automotive EV battery modules.

Specifications Of Dow DOWSIL 7645 Pressure Sensitive Adhesive

Chemical TypePlatinum-cured silicone pressure-sensitive adhesive
Product FormSolvent-based liquid (toluene/acetone/isopropanol blend)
AppearanceClear, viscous liquid; slight amber tint
Primary ApplicationsHigh-temperature industrial tapes, medical device assembly, electronics bonding
Key FeaturesLow surface energy adhesion, thermal stability, low extractables, coating versatility
BenefitsReliable performance in harsh environments, regulatory support for medical use, consistent processability
Storage ConditionsStore at 15–25 °C in sealed containers; protect from moisture and direct sunlight
Curing MethodHeat-activated platinum catalysis (typical cure: 120–150 °C for 2–5 minutes)


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