GYC-EH-3 Hardener for Epoxy
GYC-EH-3 is an epoxy hardener with a fully environmentally friendly chlorine-free process. It can be added to electronic substrates where high demands on halogen-free and lead-free is required. GYC-EH-3 can also be used with dicyandiamide (DICY) without changing its physical properties and can improve the product’s thermal stability. GYC-EH-3 has the characteristics of chemical resistance, corrosion resistance, excellent bonding strength, high Glass Transition Temperature (Tg). It reduces the rate of water absorption for epoxy effectively and provides improved dimensional stability and thermal stability.
Description
Intro
GO YEN CHEMICAL INDUSTRIAL CO., LTD. (GYC GROUP) is a leading manufacturer of specialty chemicals in Asia. We devote ourselves to supplying products and solutions to our customers worldwide to satisfy and expand the market needs.
GYC-EH-3 is an epoxy hardener with a fully environmentally friendly chlorine-free process. It can be added to electronic substrates where high demands on halogen-free and lead-free is required. GYC-EH-3 can also be used with dicyandiamide (DICY) without changing its physical properties and can improve the product’s thermal stability. GYC-EH-3 has the characteristics of chemical resistance, corrosion resistance, excellent bonding strength, high Glass Transition Temperature (Tg). It reduces the rate of water absorption for epoxy effectively and provides improved dimensional stability and thermal stability.
Properties
| GRADE | GYC-EH-3 |
| Appearance | Solid |
| Color | Light brown |
| Softening Point (℃) | 70±3 |
| Nitrogen contents | 6.5±0.2 |
| OH equivalent (g/eq) | 210±5 |
| Solvent | DMF/ANON+MEK |
Features/Benefits
- Can be used as an epoxy hardener
- Fully environmentally friendly chlorine-free process
- Improves the thermal stability
- Reduces the rate of water absorption for epoxy effectively
- Features stable coefficient of thermal expansion
- Provides dimensional stability
- Improves bonding strength
- Increases epoxy Glass Transition Temperature (Tg)
- Excellent chemical resistance
- Excellent corrosion resistance
Applications
- Can be added into halogen-free electronic substrates
- Used in lead-free series circuit board
- Can be used with Dicyandiamide (DICY) without changing its physical properties
Operations
- Stir the solvent for 30-60 mins at the temperature of 190-200℃ until the solvent is completely dissolved
- Filter the mixture by using 25µ and 5µ two-stage filter before using it
- Use DMF or ANON+MEK solvent
- The configured solution should be used up as soon as possible
GYC technical department recommends that the dose should be adjusted in accordance with different epoxy hardeners development demands
Packing
25KG/bag
Storage
- Store in a dry, and well-ventilated place with the temperature below 10℃
- Keep away from high temperature area and avoid direct sunlight
- Please do not stake on top to prevent caking
