Epoxy resin ER-305-IBC

for application on woodfor fabric impregnationfast-curing

Short description
Epoxy resin formulated for rapid-cycle compression molding of fiber-reinforced composites. Heat-activated, fast polymerization for high-temperature compression molding processes. Super Sap® formulation with 28% biobased content (USDA BioPreferred® certified).

Common uses

• Skis and snowboards
• Skateboards
• Compression-molded composite parts
• Wood laminates

Overview

• ENTROPY 305 is designed for rapid cycling in heat-assisted compression molding of fiber-reinforced composites.
• High organic/biobased content with excellent fiber impregnation and thixotropic behaviour to limit sagging during high-temperature cure.
• High modulus combined with good elongation for durable, lightweight composite components.
• Super Sap® formulation; USDA BioPreferred® certified (28% biobased).

Available options

• 305 CPM resin + CPF (fast curing agent) — Mixing ratio by volume: 2:1; Mixing ratio by weight: 100:40; Mixed viscosity at 25°C: 1994 cPs; Pot life at 25°C: 20 minutes; Recommended full cure: 15 minutes at 82°C. Characteristics: superior adhesion, very low viscosity to facilitate fiber wetting and accelerate polymerization for high production rates.
• 305 CPM resin + CPS (slow hardener) — Mixing ratio by volume: 2:1; Mixing ratio by weight: 100:38; Mixed viscosity at 25°C: 1546 cPs; Pot life at 25°C: 50 minutes; Recommended full cure: 20 minutes at 82°C. Characteristics: superior adhesion, very low viscosity to facilitate fiber wetting.

Consumption / Typical yield

• Approximately 3 liters for 2 snowboards or 2 pairs of skis (example yield).

Usage advice

• Respect the indicated mixing ratios by weight for best results.
• Mix thoroughly for at least 2 minutes, scraping container surfaces to ensure homogeneous blending.
• Use in environments with cool ambient temperatures or where humidity control is required.
• Ensure substrates are dry and free of dirt, debris or oil; surface preparation by sanding is recommended.
• Perform pre-tests with your materials and process to confirm curing behaviour under your working conditions.

Technical specifications

• Reference / SKU: ER-305-IBC
• Commercial designation: ENTROPY 305
• Format / pack: 1000 kg (IBC; large bulk formats available)
• Biobased content: 28% (USDA BioPreferred® certified)
• Formulation: Super Sap®
• 305 + CPF (fast): mixing ratio by volume 2:1; by weight 100:40; mixed viscosity 1994 cPs at 25°C; pot life 20 min at 25°C; recommended full cure 15 min at 82°C
• 305 + CPS (slow): mixing ratio by volume 2:1; by weight 100:38; mixed viscosity 1546 cPs at 25°C; pot life 50 min at 25°C; recommended full cure 20 min at 82°C
• Consumption example: ≈3 L for 2 snowboards or 2 pairs of skis
• Designed for rapid heat-activated polymerization in high-temperature compression molding
• Typical full cure temperature: 82°C (see specific cure times above)