Product Overview

DADCO Primer D-41 is a premium fast drying cold applied primer specially formulated with high-quality bitumen and selected quick-drying petroleum solvents. This professional-grade primer provides excellent adhesive properties and serves as an essential foundation coating prior to waterproofing membrane or liquid membrane applications.

Key Characteristics

• Fast Drying: 5-hour drying time for rapid project progression
• Cold Application: No heating required – ready to use at ambient temperature
• Excellent Adhesion: Superior bonding to concrete, brick, and metal surfaces
• Multi-Surface Compatibility: Suitable for various substrate materials
• ASTM Compliant: Meets ASTM D-41 specification standards
• Professional Grade: Formulated for demanding commercial and residential applications

Primary Functions

DADCO Primer D-41 serves as an ideal primer coating for:

• Concrete Walls and Roofs: Surface preparation for waterproofing systems
• Brick Surfaces: Primer for masonry waterproofing applications
• Metal Surfaces: Adhesion promoter for metal substrate protection
• Membrane Preparation: Base coat prior to waterproofing membrane installation
• Liquid Membrane Systems: Foundation primer for DADCO Flex liquid membrane applications

Application Instructions

Surface Preparation:

• Ensure surface is clean, dry, and free from dust, dirt, grease, and oil
• Remove any loose materials, paint, or surface contaminants
• Allow new concrete to cure adequately before primer application
• Repair surface defects and ensure structural integrity

Application Methods:

• Brush Application: Use high-quality brushes for detailed work and corners
• Roller Application: Apply with rollers for large flat surface areas
• Squeegee Application: Suitable for smooth surfaces requiring uniform coverage
• Airless Spray: Professional spray application for large-scale projects
• No Heating Required: Apply directly at ambient temperature

Coverage Rates:

• Concrete Surfaces: 200-300 gm/m² (depending on surface porosity)
• Metal Surfaces: 200-300 gm/m² (actual rate depends on surface texture)
• Coverage Variation: Final consumption depends on substrate absorbency and surface conditions

Technical Specifications

Viscosity Properties:

• Saybolt Furol Viscosity @25°C: 25-125 seconds (ASTM D-88)

Distillation Characteristics:

• Distillate Volume % of Primer:
  • Up to 225°C: Not less than 35% (ASTM D-402)
  • Up to 360°C: Not more than 65% (ASTM D-402)

Performance Properties:

• Penetration @25°C: 20-50 dmm, 100 gm, 5 sec (ASTM D-5)
• Solubility in Trichloroethylene: 99% minimum (ASTM D-2042)
• Water Content: 0.5% maximum
• Drying Time: 5 hours after application

Compliance Standards:

• Primary Standard: ASTM D-41 specification compliance
• Quality Assurance: Meets all ASTM testing requirements

Packaging & Storage

Packaging:

• Standard Container: 18 Liter drum
• Bulk Packaging: Larger containers available upon request
• Professional Grade: Industrial strength containers for job site durability

Storage Requirements:

• Store material in shaded area away from direct heat sources
• Maintain containers in cool, dry, well-ventilated locations
• Ensure proper sealing to prevent solvent evaporation
• Protect from temperature extremes and moisture

Shelf Life:

• Unopened Sealed Container: 12 months from manufacture date
• Storage Conditions: Ambient temperature in shaded environment
• Quality Maintenance: Retains performance properties throughout shelf life

Health & Safety

DADCO Primer D-41 is a bituminous product requiring appropriate safety precautions:

• Personal Protection: Wear suitable gloves, mask, and safety goggles during handling and mixing
• Skin/Eye Contact: Avoid contact with skin or eyes
• Ventilation: Ensure adequate ventilation, especially in enclosed spaces
• Fire Safety: Keep away from heat sources, sparks, and open flames
• Emergency Response: Follow material safety data sheet procedures

Technical Support

Comprehensive technical support is available covering application procedures, surface preparation guidelines, coverage calculations, and product compatibility. Contact DADCO technical specialists for detailed guidance, project consultation, and troubleshooting assistance.

Quality Standards

• ASTM D-88: Saybolt viscosity testing standards
• ASTM D-402: Distillation testing procedures
• ASTM D-5: Penetration testing compliance
• ASTM D-2042: Solubility testing standards
• ASTM D-41: Primary primer specification compliance
• ISO Certification: International quality management systems
• SASO Quality Mark: Saudi Arabian Standards Organization approval

Performance Benefits

• Enhanced Adhesion: Improves bond strength between substrate and waterproofing system
• Surface Sealing: Reduces substrate porosity for improved membrane performance
• Quick Turnaround: Fast drying enables rapid project progression
• Cost Effective: Reduces material consumption of subsequent waterproofing layers
• Weather Resistance: Provides protective barrier during construction phases

Environmental Considerations

• Dispose of waste materials according to local environmental regulations
• Use appropriate containment measures during application
• Follow environmental protection guidelines and best practices
• Minimize solvent emissions through proper application techniques