Sikalastic® HLM 5000 GC

Manufacturer: Sika
Product Type: Pedestrian Deck Membrane

Short Description

Sikalastic® HLM 5000 GC is a high-performance, cold-applied, elastomeric waterproofing membrane designed for below-grade and between-slab applications. This one-component, bitumen-modified polyurethane coating provides seamless waterproofing, crack-bridging properties, and resistance to chemicals and extreme weather conditions. Ideal for foundations, parking garages, plaza decks, balconies, and planters.

Quantity Needed

Sikalastic® HLM 5000 GC is a liquid-applied, moisture-curing waterproofing membrane engineered to provide seamless protection for below-grade structures and between-slab applications. Formulated with bitumen-modified polyurethane, it delivers superior elasticity, crack-bridging capabilities, and long-term durability, making it ideal for high-performance waterproofing solutions.

This cold-applied, fully adhered system is designed for concrete, plywood, foundation walls, and split slabs. It offers high chemical resistance, wide service temperature tolerance (-40°F to 120°F), and seamless application without the need for hot-melt equipment.

Key Benefits of Sikalastic® HLM 5000 GC:

  • Cold-applied, seamless waterproofing membrane—eliminates seams and potential leaks
  • High elongation and crack-bridging ability for structural flexibility
  • Compatible with damp concrete for faster installation
  • Resistant to bacterial attack, chemicals, salts, and alkalis
  • Wide service temperature range (-40°F to 120°F) for all climates
  • Available in standard and high-build systems (60–120 mils)
  • No hot-melt equipment required for application
  • Compliant with ASTM C 836 and national waterproofing standards

Common Applications:

  • Below-grade waterproofing for foundation walls and slabs
  • Plaza decks, parking garages, and split slabs
  • Balconies, terraces, and planters
  • Bridge decks, culverts, and infrastructure waterproofing
  • Above-grade applications between two-course concrete

💡 Available in 5-gallon (18.9 L) pails, with a 12-month shelf life when stored properly.