Epoxy Resin 3221A with Hardener 3221b Adhesive for Filament Winding Process

• CAS No.: 25068- 38-6
• Formula: (C11h12o3)N
• Molecular Principal Chain: Other
• Color: Colorless Transparent
• Mixing Density (25oc, g/cm3): 1.1- 1.2
• Mixing Viscosity (25oc, MPa.S): 350-600
• Model NO.: 3221A/B
• Glass Transition Temperature, Tg (Oc): 120-130
• Tensile Strength (MPa): 75-85
• Tensile Modulus (MPa): 2700-3200
• Bending Strength (MPa): 120- 130
• Bending Modulus (MPa): 2700-3200
• Transport Hazard Class(Es): 9
• Transport Package: Container
• Specification: A Grade Quality
• Trademark: UNION
• Origin: China
• HS Code: 35069120
• Production Capacity: 10000ton/Year

Product Description

Product Description

 The 3221A/B Filament Winding System consists of an epoxy resin and an acid anhydride hardener. This system is intended to provide good thermal and chemical Resistance, low viscosity, high fiber bond with ease of processability and long pot-life.

Our Advantages

    Long operating time

    Long pot-life
    Good infiltration for glass fibers & carbon fibers

Applications

This 3221A/B Filament Winding System is suitable for the manufacture of structural composites for the Oil, Gas and Chemical industry.
    Pressure vessels, such as hydrogen cylinder
    Pipes
    Tanks

   

Product Parameters

 

Property*	3221A Epoxy	3221B Hardener
Viscosity ( 25oC, mPa.s )	1200- 1500	100-200
Density ( 25oC, g/cm3 )	1.1- 1.2	1.1- 1.2
Epoxide equivalent weight (g/mol)	175- 190
Acid anhydride equivalent weight (g/mol)		180-220
Shelf Life ( 25oC, Months )	24	24
*Typical value, not to be construed as specifications.     Recommended Process The curing system can be adapted to each applications. Accordingly, times, temperatures, and heating rates should be adjusted such that the entire composite product fully cured to attain full properties.
3221A/B
Ratio by weight	100:100
Mixing viscosity (25oC, mPa.s)	350-600
Mixing density (25oC, g/cm3)	1.1- 1.2

Please mix the resin/hardener in correct ratio specified above, any change would not affect the

reaction speed but cause curing problem. Adding hardener into the resin and stir it thoroughly.
    Casting Properties

Property*	3221A/B	Test Method
Glass Transition Temperature, Tg (oC)	120- 130	DSC, Mid-point
Tensile strength (MPa)	75-85	ASTM D638
Tensile modulus (MPa)	2700-3200	ASTM D638
Elongation (%)	6.5-9	ASTM D638
Bending strength (MPa)	120- 130	ASTM D790
Bending modulus (MPa)	2700-3200	ASTM D790
Curing condition	2hour@ 90o C and 3hour@ 110 oC
*The listed data is typical physical property, not to be construed as product specification

Detailed Photos

Packaging & Shipping

IBC Packing
1000kg/drum
A:B= 1:1
In 20ft DG container, load 20pallets, 20tons. 

Give us a chance, and we' ll return you with satisfaction.