Scott Bader Crystic 2-446-45 Polyester LSE Waxed Resin

Pre-Accelerated Low Styrene Emission Polyester Resin with Wax for Fibreglass Laminating and Finishing

Scott Bader Crystic 2-446-45 is a pre-accelerated, low styrene emission (LSE) polyester resin designed for fibreglass laminating and general composite applications. Supplied waxed, this resin cures to a tack-free surface, making it suitable for final layers and exposed laminates where a hard, fully cured finish is required. Available in 1L (1.3kg), 4.5kg, 22.5kg and 225kg sizes, it is suitable for both repair work and larger scale production. The formulation is designed to reduce styrene emissions during application, improving working conditions while maintaining reliable laminating performance. Crystic 2-446-45 offers good wet-out of reinforcement materials such as chopped strand mat and woven fabrics, ensuring consistent fibre saturation and laminate strength. It is commonly used in marine, automotive and industrial composite applications where ease of use, surface finish and curing consistency are important. Designed for use with MEKP catalyst, this resin provides predictable curing and dependable results across a wide range of fibreglass projects.

Features & Benefits

Key Features

• Pre-accelerated polyester resin for easy use
• Low styrene emission (LSE) formulation
• Waxed resin for tack-free surface cure
• Available in 1L (1.3kg), 4.5kg, 22.5kg and 225kg sizes
• Compatible with chopped strand mat and fibreglass fabrics
• Designed for use with MEKP catalyst
• Good wet-out and laminating properties

Key Benefits

• Reduces styrene exposure during application
• Provides a fully cured, non-tacky surface finish
• Ensures consistent laminate strength and quality
• Easy to use for both repairs and production work
• Suitable for final layers without additional sealing
• Reliable curing performance across applications

How It Works

• Resin is mixed with MEKP catalyst to initiate curing
• Pre-accelerated formulation ensures consistent reaction
• Wax rises to the surface during cure to block air inhibition
• Results in a hard, tack-free finished laminate

Key Applications

• Fibreglass laminating and repairs
• Boat building and marine components
• Automotive fibreglass repairs
• Composite manufacturing and fabrication
• Final laminate layers requiring tack-free finish
• General industrial fibreglass applications

Trade Tips

• Only use waxed resin for final layers or exposed surfaces
• For multi-layer laminating, use unwaxed resin between layers
• Mix catalyst accurately to control gel time and curing
• Ensure proper ventilation when working with polyester resins