Sika Sikalastic 720 Base 20 Gallon Kit

Two-component, aromatic, chemically cured, elastomeric polyurethane coating intended for use as the waterproofing base coat under polyurethane or epoxy wearing surfaces for pedestrian and vehicular traffic bearing applications.

Resistant to Water and De-icing Salts
Excellent Crack Bridging Properties
Low Odor, Fast Turnaround

$1,513.51

SKU

19221

Sika Sikalastic-720 Base – Two-Component, Fast-Curing Polyurethane Waterproofing Base Coat

Sika Sikalastic-720 Base is a high-performance, two-component, chemically cured polyurethane base coat designed for waterproofing pedestrian and vehicular traffic surfaces. This solvent-free, elastomeric coating delivers exceptional crack-bridging capabilities and flexibility, ensuring long-lasting protection against water, de-icing salts, and harsh environmental conditions. Ideal for multi-story parking garages, stadiums, balconies, and mechanical rooms, Sikalastic-720 Base serves as the foundation for Sikalastic waterproofing systems, requiring a compatible top coat for UV stability.

Key Features:

Two-component, chemically cured polyurethane formula
Elastomeric with excellent crack-bridging capabilities
Fast curing for quick project turnaround
Resistant to water and de-icing salts
Solvent-free, low-odor formulation
Designed for multi-story parking garages, stadiums, balconies, and mechanical rooms
Compatible with polyurethane and epoxy wearing surfaces
Requires a top coat for UV stability and long-term durability

Technical Specifications:

Property	Value
Solid Content by Volume	100% (ASTM D-2697)
VOC Content	Refer to SDS
Shore A Hardness	80 ± 5 (ASTM D-2240)
Tensile Strength	2500 ± 100 psi (ASTM D-412)
Elongation at Break	800 ± 50% (ASTM D-412)
Tear Strength	300 ± 25 pli (ASTM D-624)
Coverage	70 ft²/gal at 23 wet mils (23 dry mils)
Pot Life	10-15 minutes

Frequently Asked Questions:

What are the primary applications for Sikalastic-720 Base?
It is used as a waterproofing base coat for pedestrian and vehicular decks, including parking garages, stadiums, footbridges, and balconies.

Does Sikalastic-720 Base require a top coat?
Yes, it must be top-coated with a compatible polyurethane or epoxy wearing surface for UV stability and long-term performance.

Can Sikalastic-720 Base be applied to metal surfaces?
No, it is designed for concrete and similar substrates. Metal surfaces should be properly cleaned and primed before application.

What is the recommended surface preparation before applying Sikalastic-720 Base?
Surfaces should be clean, dry, and free from dust, grease, and laitance. Concrete should be prepared via mechanical means such as shot blasting.

For the latest technical specifications and application guidelines, visit Sika USA.

More Information