Functional additives

Product Introduction

STD8509 consists of epoxy resin (Component A) and amine-based hardener (Component B), specifically formulated for fast-curing composite products. It exhibits excellent fiber adhesion properties.

Application Processes

• HP-RTM
• C-RTM
• WCM

Typical Physical Parameters (Uncured)

Component	A	B
Appearance	Colorless to pale yellow liquid	Colorless to pale yellow liquid
Viscosity (25°C)/mPa·s	1800-2300	5-20
Density (g/cm³)	1.10-1.20	0.90-1.00
Mixed Viscosity (25°C)/mPa·s	300-600	300-600
Epoxy Equivalent	160-190	–
Amine Value (mgKOH/g)	–	580-680

Curing Conditions & Process

Component	A	B
Weight Ratio	100	25
Pot Life (100g,25°C)	90-110min	90-110min
Gel Time (110°C)	4min±30s	4min±30s

Accurately proportion and thoroughly mix according to the specified ratio.

Cured Material Properties

Property	Value
Tensile Strength (MPa)	75-77
Elongation at Break	10%-13%
Flexural Strength (MPa)	120-130
Flexural Modulus (MPa)	2900-3200
Glass Transition Temp. (°C)	101
Post-Curing Density (g/cm³)	1.165-1.175
Impact Toughness (kJ/m²)	64-74

*Data represents typical cured material properties, not product specifications. Curing regime: 2h at 25°C + 1h at 130°C.
Packaging Specifications

25Kg, 200Kg, 1000Kg
Storage Conditions & Shelf Life

1. Store in a cool, dry, and clean environment.
2. Seal immediately after use.
3. Shelf life: 24 months in original packaging under proper storage conditions.

Personal Protection

PPE	Impermeable protective gloves to avoid skin contact.
Respiratory Protection	No special requirements.
Eye Protection	Chemical splash goggles recommended.
Body Protection	Wear protective clothing, boots, and gloves. Provide eye wash stations and emergency showers.

First Aid Measures

Skin Contact

• Wash thoroughly with soap and water for 5 minutes or until contaminants are removed.

Eye Contact

• Flush eyes with flowing water or saline solution for 20 minutes.
• Seek immediate medical attention.

Inhalation

• Move to fresh air.
• Seek medical help if symptoms occur.