S421 All Purpose - RTV Silicon

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QtySKUStanley ColorPrice
SXSE1022_SBlacklogin to see price
SXSE1021_SClearlogin to see price
SXSE1020_SWhitelogin to see price
​Stanley S421 All Purpose RTV Silicone Sealant brings you the ultimate sealing solution with its acetoxy cure system. This silicone RTV sealant is specifically designed to offer robust, long-lasting adhesion for a wide range of surfaces, making it an essential tool in both home and professional settings. This versatile, one-component RTV sealant cures at room temperature, offering a reliable, mold-resistant, and flexible bond for a variety of applications. 

Features & Benefits: 

Advanced Acetoxy Cure Technology: Ensures quick setting and a powerful bond, perfect for time-sensitive projects with RTV silicone sealant. 

 

Superior Flexibility: Maintains its elasticity, making it ideal for sealing areas exposed to movement and temperature changes. 

 

Mold and Mildew Resistant: Ensures clean, hygienic seals, especially in damp areas. 

 

Weatherproof: Withstands harsh environmental conditions, ideal for both indoor and outdoor use, serving as a reliable weatherproof silicone sealant. 

 

Diverse Material Compatibility: Excellent adhesion to glass, ceramics, metals, and plastics, making it versatile for numerous applications including sealant for doors and windows. 

 

Silicone Colors: Available in clear silicone sealant, white silicone sealant, grey, and translucent, providing options to match various surfaces and aesthetics. 

Application Areas: 

Sanitary and Plumbing: Perfect for kitchens, bathrooms, and plumbing fixtures, acting as a reliable kitchen and bath silicone and plumbing sealant. 

 

Building and Construction: Ideal for window sealant and door sealant installations. 

 

Electrical Insulation and Safety: Ideal for sealing electrical, telephone sockets, and switches, providing safety and insulation against environmental elements. 

 

DIY Projects: User-friendly for various home improvements and DIY tasks. 

How to Use: 

Preparation: Ensure that surfaces are clean, dry, and free of any contaminants. 

 

Application: Apply at recommended temperatures for optimal adhesion. Cut the nozzle to the desired bead size and apply the sealant as evenly as possible using a professional caulking gun. 

 

Tooling: Tool the sealant immediately after application for a smooth finish. 

Specs: 

Packaging: 10.1 Fl oz 

Shelf Life: 18 months of optimal performance. 

Storage: Cool, dry conditions between +41°F and +77°F. 


Click Here for Technical Sheet: 

S 421  

  • DIY Projects: User-friendly for various home improvement and DIY tasks.
  • Advanced Acetoxy Cure Technology
  • Superior Flexibility
  • Mold and Mildew Resistant
  • Weatherproof