Pecora PCS (SSG) – One-Part, Neutral Cure, Medium Modulus Architectural Silicone Sealant

Pecora PCS (SSG) is a one-part, neutral-curing, medium-modulus silicone sealant formulated for moving joints in a variety of exterior construction applications. Packaged in a 20 oz sausage (SSG format), it is ideal for use around window and door perimeters, precast concrete panels, tilt-up panels, EIFS, and curtain walls.

PCS offers primerless adhesion to the most common building materials and is engineered with 100% silicone for exceptional weatherability, UV resistance, and flexibility across a wide temperature range. It remains resilient under extreme conditions and is compatible with many substrates without requiring primer (except specific colours and substrates, as noted).

PCS meets or exceeds ASTM C920, Class 50, and other industry standards, making it a trusted choice for demanding jobsite conditions. It is particularly well suited for dynamic joint movement and provides durable, aesthetically clean finishes.

Key Features

• Neutral-Cure Silicone: Low odor and compatible with most building materials
• Medium Modulus: Supports joint flexibility in moving conditions
• Excellent Weatherability: Resists UV, precipitation, ozone, and temperature extremes
• Primerless Adhesion: Bonds to most substrates without primer
• Versatile Use: Effective in glazing, EIFS, curtain walls, and precast panels
• CTG Format: 10.1 oz cartridge for standard caulking tools

Best Suited For

• Expansion and control joints in precast or tilt-up concrete
• Curtain wall and EIFS perimeter sealing
• Bedding panels and coping joints
• Window and door perimeters
• General exterior glazing applications

Downloads

• PCS Datasheet
• PCS Pecora Contractor Silicone Colour Chart
• PCS Pecora Contractor Silicone SDS
• PCS Translucent SDS
• Pecora Capabilities Full Line Chart
• Pecora Product Reference Guide
• Pecora Sealant Application Manual
• Pecora Silicone Brochure