Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- CASE Ingredients Functions
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- CASE Ingredients Features
- Materials Features
- Distinguishing Features
In comparison with BECKOPOX™ EP 384w the internally plasticized BECKOPOX™ EP 385w posesses a much better prolonged flexibility and better wet film adhesion; it is therefore preferred for metallic substrates and certain plastics.
Applications & Uses
- Applications
- Compatible Polymers & Resins
- Compatible Substrates & Surfaces
- Coating Type
- Plastics & Elastomers End Uses
- Special Properties and Uses
Internally flexibilized solid resin-Type 1-dispersion, e. g. for water reducible fast drying anticorrosion primers and coatings for plastics. Addition of BECKOPOX™ EP 147w increases hardness and chemical resistance.
- Suggested Uses and Processing Information
- BECKOPOX™ EP 385w is an internally plasticized type 1 solid epoxy resin as aqueous dispersion.
- Formulated together with adequate curing agents such as BECKOPOX™ EH 613w, EH 623w or VEH 2849w it is suited for corrosion protection primers with very good adhesion to most metallic substrates. It is also suitable for use in single coat and decorative systems for metallic substrates. For optimium corrosion protection it is recommended using 80% of the stoichiometric curing agent quantity. Formulations based on BECKOPOX™ EP 385w also have good adhesion to various plastics such as PC, PA, PUR and UP-laminates.
- Pigments and extenders should be dispersed in the curing agent component since BECKOPOX™ EP 385w does not posess sufficient shear stability.
- The formulated paint stability can be influenced by the additives used so that it is important to investigate their suitability thoroughly; such additves should not contain functional groups capable of reacting with epoxy groups.
- To improve the adhesion and penetration to porous substrates it is recommended using it together with BECKOPOX™ EP 147w or EP 122w.
MIXING RATIO AND POT LIFE
A blend of 100.0g BECKOPOX™ EP 385w/56WA 16.3g BECKOPOX™ EH 613w/80WA 13.7g deionized water has a pot life at 23°C of approx. 90 minutes. The termination point cannot be observed through viscosity increase or gelation, it is therefore necessary to use the material within the stated time limit. The substrate temperature should not be below 12°C and the relative humidity not above 80%.
Properties
- Physical Form
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Density (20°C) | approx. 1.09 | g/cm³ | — |
| Non-Volatile Matter Analogue (125°C 10 min 0,8g) | 54 - 58 | % | — |
| Flash Point | min. 65 | °C | — |
| Dynamic Viscosity (150 s⁻¹, 23°C) | 450 - 1100 | mPa.s | — |
| Epoxy Equivalent (Solids) | 480 - 520 | g/mol | — |
| Epoxy Equivalent (Form of Delivery) | 850 - 930 | g/mol | — |
| Non-Volatile Matter Analogue (1h, 125°C, 1g) | 54 - 58 | % | — |
Packaging & Availability
- Country Availability
- Regional Availability
Storage & Handling
- Shelf Life
- 270 Days
- Storage and Handling
- At temperatures up to 25°C storage stability packed in original containers amounts to at least 270 days.
- It is important to protect BECKOPOX™ EP 385w from frost and direct sunshine; at low temperatures it has therefore to be stored under frostproof conditions.
- As a result of the high solids content of the product and the solid resin character of the polymer, the product tends to form a tiny skin upon foaming and temperature changes during storage. Therefore filtration of the product (without heating) before applied by the end-user is recommended.
- Lowest storage temperature: 5°C
- When handling and processing epoxy resins and hardeners, the rules and regulations established by local authorities should be observed. A Material Safety Data Sheet is available on request.