Parcel Orders over $300 Ship Free.
Sika Sikalastic HLM 5000 GC 5 Gallon Pail
Sikalastic HLM 5000 GC is a one-component, moisture-curing, bitumen-modified polyurethane elastomeric waterproofing membrane for exterior below-grade or between slab applications.
- Wide Service Temperature Range
- Can be Applied to Damp Concrete
- Does Not Require Hot Melt Equipment
$194.29
Ask About Project Pricing!
SKU
22520
Sika Sikalastic HLM 5000 GC – 5 Gallon Pail
Sikalastic HLM 5000 GC is a one-component, moisture-curing, bitumen-modified polyurethane elastomeric waterproofing membrane. It is designed for exterior below-grade or between-slab applications, providing seamless, cold-applied protection against water infiltration. With excellent adhesion to concrete, masonry, plywood, and metal, this versatile membrane accommodates expansion and contraction while delivering reliable chemical and UV resistance across a wide service temperature range.
Key Features
- One-component, moisture-curing polyurethane system.
- Seamless cold-applied application eliminates lapping and seaming.
- Suitable for damp concrete surfaces.
- Passes ASTM C1305 crack bridging tests.
- Excellent resistance to acids, alkalis, salts, and bacterial attack.
- Wide service-temperature range, suitable for all climates.
- Complies with ASTM C836, CGSB 37.58-M86, and SCAQMB standards.
Applications
- Below-grade foundation walls and slabs.
- Between-slab waterproofing for plaza decks, malls, and parking garages.
- Balconies, planters, and split slabs.
- Exterior masonry and incidental metal surfaces.
- Culverts, retaining walls, and other concrete structures requiring waterproofing.
Technical Specifications
| Property | Value |
|---|---|
| Chemical Base | Bitumen-modified polyurethane |
| Color | Black |
| Viscosity | 800 poise (Brookfield) |
| Solids by Mass | 85% ± 1% |
| VOC Content | 53 g/L |
| Thickness / Coverage | 60 mils: ~25 ft²/gal; 90 mils: ~18 ft²/gal; 120 mils: ~13 ft²/gal |
| Tensile Strength (ASTM D412) | 150 psi (60 mil); 200 psi (120 mil) |
| Elongation at Break (ASTM D412) | 600% (60 mil); 300% (120 mil) |
| Crack Bridging (ASTM C1305) | Passes 1/16" (60 mil) and 1/4" (120 mil) |
| Water Vapor Transmission (ASTM E96) | 0.1 perms (60 mil); 0.075 perms (120 mil) |
| Service Temperature | -40 °F to +120 °F (-40 °C to +50 °C) |
| Shelf Life | 12 months (unopened) |
| Packaging | 5 gallon pails |
Frequently Asked Questions
What is Sikalastic HLM 5000 GC used for?
It is used for below-grade and between-slab waterproofing applications including foundations, plazas, garages, and balconies.
Can it be applied to damp concrete?
Yes, the product can be applied to properly prepared damp concrete surfaces.
What standards does it meet?
It complies with ASTM C836, ASTM C1305, CGSB 37.58-M86, and SCAQMB standards.
How thick should the membrane be applied?
Standard applications are 60 mils, while high-build systems are applied at 90–120 mils for enhanced protection.
What is the coverage rate?
At 60 mils, coverage is ~25 ft²/gal; at 90 mils, ~18 ft²/gal; and at 120 mils, ~13 ft²/gal.
Please complete your information below to login.