KE‑44 is a one‑component RTV silicone sealant that cures at room temperature by releasing acetic acid. It provides strong adhesion to glass, ceramics, and metals, while maintaining flexibility and moisture resistance. Its durability and ease of use make it suitable for construction, electronics, and general industrial sealing tasks.

• Rapid Cure - KE-44 cures quickly at room temperature through an acetoxy condensation mechanism. Under typical conditions of 23 °C and 50 percent relative humidity, surface skin formation usually occurs within 5 to 10 minutes, while curing progresses at approximately 2 to 3 mm per 24 hours. This curing speed supports faster handling and shorter waiting times during sealing operations.

  
  

• High Adhesion - KE-44 develops strong bonding strength to common substrates including glass, ceramics, and metals. Typical tensile adhesion strength ranges from 0.8 to 1.2 MPa under standardized test conditions. This level of adhesion supports stable joint integrity under static loads and helps reduce the risk of joint separation over time.

  
  

• Moisture Resistance - After full cure, KE-44 forms a silicone elastomer with low water absorption characteristics. Typical water uptake remains below 0.5 percent by weight after 24 hours of immersion at room temperature. This performance helps maintain sealing effectiveness and material stability in humid or moisture-exposed environments.

  
  

• Elastic Retention - KE-44 maintains flexibility after curing, allowing it to accommodate joint movement and vibration. Typical elongation at break exceeds 250 percent, while Shore A hardness generally falls between 20 and 30. These values support long-term sealing performance without cracking or loss of elasticity.

  
  

• Material Stability - KE-44 exhibits stable physical properties during application and after cure. With a viscosity of approximately 85 000 mm² per second and a specific gravity around 1.03 at 25 °C, it provides controlled flow and consistent bead formation. This stability supports uniform application quality across different working conditions.

  
  

• Service Durability - The cured KE-44 elastomer maintains reliable performance in routine service environments. Mechanical property retention typically remains above 80 percent after extended exposure to moderate temperature variation and humidity. This durability supports longer service intervals and reduced maintenance frequency.

• Construction Sealing - KE-44 is widely used for sealing joints in building applications such as windows, frames, and general construction gaps. Joint widths of approximately 3 to 12 mm can cure evenly under normal ambient conditions. The cured sealant maintains flexibility during thermal expansion and contraction commonly encountered in buildings.

  
  

• Electronics Protection - In electronics-related sealing tasks, KE-44 is applied to protect housings and assemblies from moisture ingress. After curing, silicone layers typically exhibit volume resistivity above 1 × 10¹³ ohm·cm. This electrical stability supports moisture protection for non-heat-sensitive electronic enclosures.

  
  

• Automotive Sealing - KE-44 is suitable for general automotive sealing where elastic joints are required. The cured elastomer typically operates within a service temperature range of −40 °C to 180 °C. This range supports reliable sealing performance under common automotive operating conditions.

  
  

• Household Repair - KE-44 is commonly used in household DIY and repair tasks involving glass, ceramic, and metal surfaces. Its ready-to-use paste consistency allows controlled application without specialized tools. Predictable curing behavior supports consistent results for routine maintenance work.

  
  

• Industrial Sealing - In industrial environments, KE-44 is applied to seal equipment panels, enclosures, and mechanical interfaces. Stable adhesion and curing performance support consistent sealing quality during assembly and maintenance operations. This reliability helps reduce rework and downtime.

  
  

• General Bonding - KE-44 is also used for general-purpose bonding tasks where moderate strength and flexibility are required. Controlled flow and steady cure progression allow repeatable application across different substrates. This versatility supports its use across multiple routine sealing and bonding scenarios.