Ship hardener EH-CCS-4

Description
CCR is a low-viscosity, water-clear, UV-resistant biobased epoxy system developed for casting, molding and thick coatings. The CCS slow hardener is formulated specifically for high-density, large or deep castings and coatings and is part of the Super Sap® family with ~30% biobased content (USDA BioPreferred Certified).

Use

• Resin jewellery
• Thick coatings and high-build applications
• Large or deep castings and inlay work

Key system behaviour
Low viscosity enables bubble-free, crystalline castings suitable for artistic, hobby and industrial applications. Two cure speeds are available in the CCR system: CCS (slow) for high-thickness/high-density castings and CCF (fast) for smaller or rapid projects such as jewellery.

Tips for use

• Measure mixing ratio by weight for best accuracy.
• Stir thoroughly for at least 2 minutes, scraping container surfaces to ensure homogeneity.
• Work in a temperature-controlled environment (recommended 15°C–25°C); avoid cold or very humid conditions.
• Ensure surfaces are dry and free of dust, debris and oil; surface preparation by sanding is recommended.
• Perform preliminary trials to verify curing behaviour and material compatibility in your process.

Important note
Moisture or presence of water can cause hazing or opacity; if this occurs, a heat gun may be used to restore clarity.

Technical specifications

• Product type: CCS slow hardener for CCR biobased casting and molding resin (Super Sap® formulation)
• Biobased content: ~30% (USDA BioPreferred Certified)
• Mixing ratio (volume): 2:1 (resin:hardener)
• Mixing ratio (weight): 100:42 (resin:hardener)
• Viscosity (A / B / Mixed at 25°C): 2160 / 15 / 270 mPas
• Component density (25°C): resin 1.12 g·cm-3, hardener 0.95 g·cm-3
• Mixture density (25°C): 1.07 g·cm-3
• Working temperature: 15°C–25°C
• Pot life (at 25°C): 360 minutes
• Dry to the touch (at 35°C): 72 hours
• Recommended full cure: 7 days at 25°C
• Maximum casting thickness with CCS slow hardener: up to 100 mm (system-dependent)
• Density examples (system): fast: 250 g / 231 ml (max thickness 62 mm); slow: 1000 g / 935 ml (max thickness 100 mm)
• Mechanical properties: Tensile modulus (ASTM D638) 3.0 GPa; Tensile strength (ASTM D638) 54.5 MPa; Elongation (ASTM D638) 6.5%
• Flexural modulus (ASTM D790) 2.8 GPa; Flexural strength (ASTM D790) 76.5 MPa; Compressive strength (ASTM D695) 74.9 MPa
• Ultimate glass transition temperature (Tg): 52°C
• Hardness (Shore D): 70–80
• VOC content (ASTM D2369): 8.0 g/L
• Biosourced carbon content (ASTM D6866): 20%