Sikalastic 644 Lo-VOC Waterproofing System combine a cold applied, low-odor, aliphatic, single component, alkali resistant, moisture-triggered polyurethane resin
Sikalastic 644 Lo-VOC Waterproofing System may only be used by experienced professionals. Sikalastic waterproofing systems, including sikalastic plaza Deck/PMA and vegetated systems for both new construction and refurbishment. It acts as a split-slab waterproofing and allows waterproofing under tile in a mortar bed, as well as involving cementitious and asphalt pavement overlays, waterproofing around/beneath mechanical equipment. It also includes a separate wearing course (overlayment or overburden), but Sikalastic 644-Lo-VOC is UV resistant without protection board and is therefore suitable for direct exposure waterproofing projects as well.
Sikalastic 644 Lo-VOC Waterproofing System combine a cold applied, low-odor, aliphatic, single component, alkali resistant, moisture-triggered polyurethane resin with fiberglass mat or polyester fleece reinforcement to create a seamless membrane and flashing system.
- Proven technology with over 30 year track record
- Single component - no mixing and ready to use
- Alkaline resistant - suitable for under tile placement
- Fully reinforced with highly conformable Sika Reemat or Sika Fleece
- Moisture triggered chemistry that is rapidly weatherproof after activation
- Low VOC formula - low Odor
- Highly elastic and crack bridging
- Seamless and fully adhered
- Vapor permeable
- UV resistant and non-yellowing
- Abrasion and chemical resistant
- Adheres to most common construction materials when suitable primer is used.
Select primer per substrate material in accordance with the Priming Guide. Sikalastic 644 Lo-VOC: Resin used for all systems with both Sika Reemat and Sika Fleece reinforcement. Sikalastic Reemat Premium: Chopped strand fiberglass mat. Sika Fleece 120, 140, 170: Non-woven, needle-punched polyester fleece in various weights.
