About epoxy resins
Excellent characteristics of epoxy resins
Curing of one-part epoxy resins
Characteristics of one-part epoxy resins
- One-part, which is easily managed.
- Low probability of skin damage due to the hardener.
- Excellent heat resistance.
- Needs heat for curing.
- Thick film curing may be difficult.
- Probability of uncured state when used in a minute clearance.
Points for selecting one-part epoxy resins
| Properties before curing | Viscosity, thixotropy, and color |
|---|---|
| Curing conditions | Heat resistance of workpieces and time from application to curing |
| Properties after curing | Adhesive strength, hardness, elasticity, luster, properties of insulation and heat dissipation, and ease of repair |
| Strength during heating (hot processing) | Tg (Glass transition temperature) |
Curing of two-part epoxy resins
Characteristics of two-part epoxy resins
- Cures at room temperature without heating.
- Excellent chemical resistance and dielectricity.
- Burdensome measuring and blending of two agents.
- Probability of skin irritation due to the hardener.
- Short working time.
Points for selecting two-part epoxy resins
| Base agent | Consider color and viscosity. |
|---|---|
| Hardener | Curing time/temperature, strength, flexibility, etc. |
Frequently Asked Questions from customers
- Use a glass transition point as a measure of the maximum temperature for adhesion. Pyrolysis temperature of the epoxy resin is from about 250 to about 350°C.
- Basically, it is impossible, although it may sometimes become more peelable when soaked in a solvent or heated above the glass transition point.
- One of the following might be a cause:
One-part: Insufficient temperature and/or time, sinking, or separation.
Two-part: Incorrect blending ratio, mis-blending, or insufficient temperature and/or time.
Epoxy resins are one-part or two-part industrial materials that have respective advantages and can be exploited in a wide variety of industries offering excellent mechanical strength, heat resistance, and chemical resistance.
We, ThreeBond, are always making efforts to offer products that will best suit your design requirements.
Other series of Seminars on Adhesives
No.7
About epoxy resins
No.8
About liquid gaskets
