Sikadur 32LP | MCTCHEMICALS | SIKA PAKISTAN

Sikadur®-32 LP is a two-component, epoxy-based structural bonding agent designed for use in high-temperature environments. It is moisture-resistant and can effectively bond wet or dry materials to both damp and dry substrates. This product is ideal for use in hot and tropical climates.

Applications
Sikadur®-32 LP is intended for use by skilled professionals as a structural adhesive to bond fresh concrete to hardened concrete.

Features

• Application temperature range: +20°C to +40°C
• Can be applied in thicknesses up to 1 mm
• Easy to mix and apply
• Suitable for both dry and damp concrete surfaces
• Excellent adhesion to a wide range of construction materials
• Cures without shrinkage
• Components are color-coded for easy mixing control
• No primer is required
• Provides both high initial and final mechanical strengths
• Impermeable to liquids and water vapor

Certifications and Test Reports

• CE Marking and Declaration of Performance according to EN 1504-4 for structural bonding

Product Information

• Composition: Epoxy resin with selected fillers
• Packaging Options:
  • 1 kg ready-to-mix unit (Parts A + B)
  • 5 kg ready-to-mix unit (Parts A + B)
  • 25 kg ready-to-mix unit (Parts A + B)
    (Refer to current price list for variations in packaging)
• Shelf Life: 24 months from the production date
• Storage Conditions: Store in original, unopened, and undamaged packaging in dry conditions at temperatures between +5°C and +30°C. Always follow packaging instructions.
• Color:
  • Part A: White
  • Part B: Dark grey
  • Mixed (Parts A + B): Concrete grey
• Density: Mixed resin ~1.4 ± 0.1 kg/l at +23°C

Technical Information

• Compressive Strength (ASTM D 695-95) at different curing times and temperatures:
  • 1 day at +23°C: ~2 N/mm²
  • 3 days at +23°C: ~14 N/mm²
  • 7 days at +23°C: ~34 N/mm²
  • 14 days at +23°C: ~39 N/mm²
  • 7 days at +40°C: ~41 N/mm²
  • 14 days at +40°C: ~56 N/mm²
• Tensile Adhesion Strength (EN 1542):
  • 7 days on dry concrete at +23°C: >3 N/mm²
  • 7 days on moist concrete at +23°C: >3 N/mm²
    (100% concrete failure)
• Shear Adhesion Strength (ASTM C882/C882M-20):
  • ≥10 N/mm² at 28 days
• Shrinkage: Cures without shrinkage

Application Information

• Mixing Ratio: Part A : Part B = 2 : 1 by weight or volume
• Consumption: Approximately 1.3 kg/m² per mm of thickness (theoretical, surface porosity and variations may affect actual usage)
• Layer Thickness: Maximum 1 mm
• Sag Flow: Non-sag up to 1.0 mm thickness on vertical surfaces (EN 1799)
• Material Temperature: +20°C minimum / +40°C maximum
• Ambient Temperature: +20°C minimum / +40°C maximum
• Dew Point: Avoid condensation; ensure steel substrate temperature is at least +3°C above the dew point
• Substrate Temperature: +20°C minimum / +40°C maximum
• Substrate Moisture Content: Cementitious substrates should be dry or slightly damp (no standing water). For damp substrates, ensure thorough brushing of the adhesive.

Pot Life

• At +20°C: Pot life ~145 minutes, open time ~270 minutes
• At +30°C: Pot life ~55 minutes, open time ~240 minutes
• At +40°C: Pot life ~35 minutes, open time ~120 minutes
  (EN ISO 9514)
  The pot life begins once Parts A and B are mixed. Pot life is shorter at higher temperatures and longer at lower temperatures. Larger quantities mixed together will result in a shorter pot life. To extend workability at higher temperatures, the mixed product can be divided into smaller portions, or the components can be chilled before mixing (but not below +5°C).