Enhanced TDS
Identification & Functionality
- Blend
- No
- CAS Number
- 25513-64-8
- Chemical Family
- Function
- Binder & Resin,Hardener,Curing Agent
- Product Functions
- Single Ingredient
- Yes
- Technologies
- Product Families
Features & Benefits
- Product Features
- Features and Benefits
Depending on the formulation and the epoxy resin used, the surface technologies present the following features:
- good resistance to aliphatic and aromatic hydrocarbons
- very good mechanical properties following optimal cure
- good colour stability
- good resistance to aqueous neutral and alkaline solutions
Applications & Uses
- Product End Uses
- Markets
- Applications
- Application Details
Liquid to semi-solid ARALDITE® epoxy resins or resin solutions (e.g. ARALDITE® GY 250, GY 260 or GY 280) do not cure fully when processed solely with ARADUR® 21; the resulting films are brittle and tend to exude. If formulated, as hardener for epoxy resin mortars, floorings, mastics and solvent-free coatings (also for corrosion resistance).
Properties
- Physical Form
Regulatory & Compliance
Safety & Health
- Handling Precautions
Mandatory and recommended industrial hygiene procedures should be followed whenever our products are being handled and processed.
Packaging & Availability
- Regional Availability
Storage & Handling
- Storage Information
ARADUR® 21 should be stored in a dry place, preferably in the sealed original container, at temperatures between 2 and 40°C. The product should not be stored exposed to direct sunlight. Shelf life (at storage temperature between 2 - 40 °C) - 3 years at least
Other
- Appearance
- Clear liquid
- Color (SDS)
- Clear Colorless
- Material Compatibility
- Miscible in (SDS)
- Water
- Odor
- Ammoniacal
- Application Information
Value Units Test Method / Conditions Mix Ratio 18.0 g/100g - Chemical Properties
Value Units Test Method / Conditions Amine Hydrogen Equivalent Weight 40.0 g/eq Amine Value 680.0-720.0 mg KOH/g - Physical Properties
Value Units Test Method / Conditions Density 0.87 g/cm³ ISO 1675 at 20°C Flash Point min. 102.0 °C Pensky-Martens Closed Cup (PMCC) Flash Point min. 102.0 °C ISO 2719 Gel Time 60.0 m Gel Time 95.0 m Tecam Gelation Timer at 23°C, 250g with Araldite® GY 250 Viscosity 0.0-10.0 mPa.s ISO 3219 at 25°C Viscosity 0.0-10.0 mPa.s Mini-Rotary Viscometer at 25°C