Technical Product Bulletin
CATALYZED MERCAPTAN EPOXY CURING AGENT
PRODUCT DESCRIPTION
CAPCURE® 3830-81 is a medium-viscosity, catalyzed mercaptan epoxy curing agent engineered for rapid curing—achieving set times of just 3 to 5 minutes at room temperature. It can be used either as a standalone curing agent or as an accelerator for amine, amide, or amido-amine epoxy systems. Its fast-setting properties across a broad temperature range (-1°C to 38°C) make it ideal for industrial, coatings, civil engineering, and fast-set epoxy/adhesive applications.
KEY ADVANTAGES
- Excellent performance in low-temperature conditions with fast-setting film formation
- Strong resistance to film bloom and blush for a cleaner finish
- High acceleration characteristics for efficient processing
- Low toxicity for safer handling and use
TECHNICAL DATA
| Property | Value | Unit | Comments |
|---|---|---|---|
| Appearance | |||
| Color | < 2 | Gardner | Clear to slightly yellow |
| Physical Properties | |||
| Viscosity | 10,000 – 16,000 | cP | Measured at 25°C, Brookfield |
| Density | 1.13 | g/mL | |
| Thermal Properties | |||
| Flash Point | > 93.3 | °C | Closed cup method |
TYPICAL APPLICATIONS
- Consumer patch kits
- Road marker adhesives
- Industrial adhesives
- Jewelry and craft adhesives
- Epoxy adhesive cure acceleration
GENERAL INFORMATION
For safe handling information on this product, consult the Safety Data Sheet (SDS).
HOW TO USE
- Carefully clean and dry all surfaces to be bonded.
- Mix CAPCURE® 3830-81 with the epoxy resin according to the recommended specifications for the epoxy system being used.
- Apply the mixed product to the prepared surfaces, ensuring even coverage.
- Allow the product to cure for 3-5 minutes at room temperature for rapid-set applications, or follow the cure schedule of the epoxy system when used as an accelerator.
- Some separation of components may occur during shipping or storage. Thoroughly mix the contents of the container prior to use.
AVAILABILITY
This curing agent can be supplied in various packages.
Data Sheets: TDS | MSDS available upon request.
