ENTROPY CPF fast hardener for 305 biobased resin. For compression molding processes

305 resin is a compression moulding resin for fast cycle times in heat assisted moulding processes of fibre reinforced composites.

The 305 system has a high biological content, excellent fibre impregnation qualities and thixotropic characteristics to limit sag in high temperature curing applications.

High modulus combined with excellent elongation properties results in durable but lightweight composite parts.

Epoxy resin 305 is a USDA BioPreferred product with a 28% biobase content.

Usage: skateboard, skis, snowboards, press moulded composites

Consumption: approx. 3 litres for 2 snowboards or 2 pairs of skis

Tip for use :

• For best results, mix the two components according to the weight.
• Always stir the product thoroughly for at least 2 minutes, scraping all surfaces of the container to ensure a homogeneous mixture.
• Use the product in an environment with cold ambient temperatures or high humidity.
• For optimum curing performance, ensure that the surfaces are dry and free of all dirt, debris and/or traces of oil. Surface preparation by sanding is strongly recommended.
• Carry out preliminary tests with the materials and processes being considered to fully understand the curing characteristics of epoxy in your materials working environment.

Mechanical characteristics:

Tensile modulus (ASTM D638): 3.4 GPa

Tensile strength (ASTM D638): 73.1 MPa

Elongation (ASTM D638): 6.2%.

Flexural modulus (ASTM D790) : 3.0 GPa

Flexural strength (ASTM D790): 109.4 MPa

Compressive strength (ASTM D695): 84.1 MPa

Ultimate Tg: 66°C

Hardness (shore D): 70-80

Treatment characteristics

Mixing ratio (by volume): 2:1

Mixing ratio (by weight): 100:40

Viscosity (A/B/Mixed at 25°C): 3360/1656/1994 mPas

Component density (density at 25°C): 1.13 (resin), 0.99 (hardener) gcm-3

Mixture density (density at 25°C): 1.09 gcm-3

Time of use (at 25°C): 20 minutes

Dry to the touch (at 35°C): N/D

Recommended complete curing: 15 minutes at 82°C

Environmental features

VOC content (ASTM D2369): 1.2 g/l

Biosourced carbon content (ASTM D6866): 29%.