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Application

  • Movement and connection joints in floors.
  • Indoor and outdoor applications for pedestrian and traffic areas (e. g. parking decks, car parks).
  • Warehouses and production areas.
  • Food industry applications.
  • Ceramic tiling (public buildings etc.).
  • Floor joints in tunnel construction.

Description

One-part, moisture-curing, polyurethane-based, self-levelling elastic joint sealant, suitable for interior and exterior use.

Features and benefits:

  • High mechanical and chemical resistance.
  • Self-levelling.
  • Bubble-free curing.
  • Good adhesion to most construction materials.
  • Solvent-free.
  • Suitable for use in hot and tropical climatic conditions.
  • Very low emissions.
  • Movement capability of ±25% (ISO 9047); ±35% (ASTM C 719).

Applications:

  • Movement and connection joints in floors.
  • Indoor and outdoor applications for pedestrian and traffic areas (e. g. parking decks, car parks).
  • Warehouses and production areas.
  • Food industry applications.
  • Ceramic tiling (public buildings etc.).
  • Floor joints in tunnel construction.

Approvals:

  • EN 15651-4 PW EXT-INT CC 25 HM.
  • ISO 11600 F 25 HM.
  • ASTM C 920 class 35.
  • ISEGA certificate for foodstuff area usage.
  • ASTM C 920 class 35.
  • ISEGA certificate for foodstuff area usage.
  • BS 6920 (drinking water contact).
  • Resistant against waste water according to DIBt guidelines.
  • Resistant against diesel and jet fuel according to DIBt guidelines.

General information
Specification data - Polyurethane (PUR) construction joint sealants
Product Reference

Sikaflex® PRO-3 SL

Colour

Black

Concrete grey

Standard product features

Chemical base:

i-Cure® Technology polyurethane.

Technical characteristics:

  • Density: ~1.40 kg/L.
  • Service temperature: -40°C to +70°C.
  • Application temperature: 5–40°C.
  • Shore A hardness (after 28 days): ~28.
  • Elastic recovery (to ISO 7389): ~90%.
  • Movement capability: ±25% (to ISO 9047); ±35% (to ASTM C 719).
  • Sag flow: Self-levelling, can be used on slopes ≤3%.
  • Tear propagation resistance (to ISO 34): ~8.0 N/mm².
  • Secant tensile modulus (to ISO 8339 at 100% elongation): ~0.45 N/mm² at 23°C; ~0.80 N/mm² at -20°C.
  • Elongation at break (to ISO 37): ~700%.
  • Curing rate (at 23°C, 50% RH): ~3.5 mm/24 h.
  • Skin time (at 23°C, 50% RH): ~100 minutes.

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