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

Dow DOWSIL 798 Cold and Clean Room Silicone Sealant

Dow DOWSIL 798 is a one-component, acetoxy-cure silicone sealant engineered for cold and clean room environments. It offers rapid cure, low VOC emissions, excellent adhesion to glass, aluminum, and plastics, and maintains flexibility across wide temperature ranges. Ideal for pharmaceutical, biotech, and semiconductor facilities requiring ISO Class 5–8 compliance and non-shedding performance.
  • dow dowsil 798 cold and clean room silicone sealant_b3a619b1
  • dow dowsil 798 cold and clean room silicone sealant_b3a619b1

Features Of Dow DOWSIL 798 Cold and Clean Room Silicone Sealant

  1. Low-temperature cure formulation designed for reliable performance in cold environments down to –10 °C (14 °F).

  2. Ultra-low particulate and non-outgassing silicone chemistry, compliant with ISO Class 5 (Class 100) cleanroom requirements.

  3. Acetoxy-cure system offering rapid skin formation and excellent adhesion to glass, aluminum, stainless steel, and anodized surfaces without primer.

  4. Non-corrosive to sensitive electronics and optical components — ideal for high-purity manufacturing environments.

  5. Excellent resistance to thermal cycling, humidity, and UV exposure while maintaining long-term elastomeric integrity.

Typical Applications Of Dow DOWSIL 798 Cold and Clean Room Silicone Sealant

  1. Sealing of cleanroom wall panels, ceiling systems, and pass-through chambers in pharmaceutical and biotech facilities.

  2. Glazing and perimeter sealing of HEPA/ULPA filter housings and laminar flow hoods.

  3. Bonding and sealing of semiconductor fabrication tool enclosures and wafer handling equipment.

  4. Joint sealing in cold-storage cleanrooms used for vaccine and biologics manufacturing.

Specifications Of Dow DOWSIL 798 Cold and Clean Room Silicone Sealant

Chemical TypeAcetoxy-cure silicone elastomer
Product FormThixotropic paste in cartridge (310 mL)
AppearanceOff-white, uniform paste
Primary ApplicationsCold and ISO Class 5–8 cleanroom construction and equipment assembly
Key FeaturesLow-temp cure, low-particulate, non-corrosive, primerless adhesion
BenefitsReduced downtime during cold-weather installation; validated compatibility with critical cleanroom substrates
VOC Content<10 g/L (ASTM D6886)
Shelf Life12 months from date of manufacture when stored unopened at 5–25 °C


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *