Sika Sikasil 728 RCS Limestone 40oz Unit

$72.30

Self-leveling, two-component, very rapid cure, ultra low modulus elastomeric, neutral cure silicone sealant. Exceptional performance in extreme high and low temperature applications.

Jet Fuel Resistant
All Season Application
Open to Traffic in One Hour

SKU

19054

Details

Sika Sikasil-728 RCS - Rapid Cure Silicone Sealant for Horizontal Joints

Sika Sikasil-728 RCS is a two-component, self-leveling, ultra-low modulus silicone sealant specifically designed for horizontal joint applications. This rapid cure system offers excellent flexibility, dynamic movement capabilities, and outstanding adhesion to a wide range of substrates, including concrete, steel, and masonry. Ideal for use in highway and bridge joints, parking decks, and other high-performance applications, Sikasil-728 RCS ensures long-term durability and resistance to harsh environmental conditions, including jet fuel and road salts.

Key Features:

Ultra-low modulus for extreme joint movement (+100%/-50%)
Rapid cure time—open to traffic in just one hour
Resistant to jet fuel, road salts, and extreme temperatures
Self-leveling and easy to apply with no tooling required
Excellent adhesion without the need for primer
All-season performance, suitable for cold climates

Applications:

Highway and bridge expansion joints
Saw cut joints—new and remedial
Plaza and parking decks
Airports, stadiums, and driveways
Horizontal concrete and steel joints

Technical Specifications:

Specification	Details
Packaging	40oz Unit (Two 20oz Sausages)
Shore Hardness	50 ± 5 Shore OO, 4-6 Shore A
Tensile Strength	70 psi
Elongation at Break	>1000%
VOC Content	30 g/L
Service Temperature	-80°F to 350°F
Movement Capability	+100% / -50%
Cure Time	90% in 1 hour