Knowde Enhanced TDS
Identification & Functionality
- Carrier
- CASE Ingredients Functions
- Technologies
- Product Families
Features & Benefits
- CASE Ingredients Features
- Key Properties
- Low viscosity solution [alternate solution versions available]
- Tolerant mix ratio and good compatibility with epoxy resins
- Good cure rate and cure at low temperature and adverse conditions
- Excellent water and corrosion resistance
- High flexibility and toughness
- Low free amine content
- Chemical Resistance
Excellent resistance to water and salt water. Good resistance to aqueous acids and alkalis and reasonable solvent resistance but poor resistance to ketones and glycol ethers.
Applications & Uses
- Applications
- Compatible Polymers & Resins
- Coating Type
- Applications
CARDAMINE H641X90 may be utilized in a variety of applications including numerous high solids marine and heavy duty surface coatings, systems for potable water (tank and pipe lining), concrete primers and a variety of further primers and surface coatings.
- Mix Ratio – Stoichiometry
It is customary to formulate systems with numerous additives that may be employed to enhance processing or application properties. Irrespective of the additional materials used, the ratio of reactive components should be maintained in accordance with the stoichiometric levels suggested.
- AHEW [ Active Hydrogen Equivalent Weight ] = 144
- Mix ratio [ PHR – Parts Per Hundred of Epoxy resin with an EEW 190 ] – by weight = 70 – 85
CARDAMINE H641X90 has a tolerant mix ratio and formulations can be altered to enhance flexibility and cured property performance. CARDAMINE H641X90 when formulated with higher addition levels will increase adhesion and flexibility but have an adverse effect on chemical resistance.
The mix ratio quoted is based on the usage of the epoxy curing agent in a stoichiometric ratio with an epoxy resin with an EEW of 190. In the event that the system is formulated with alternate epoxy resin and systems of differing EEW values the ratio should be calculated based on:
(AHEW of CARDAMINE grade/ EEW of epoxy resin) X 100 = use ratio with 100 pts epoxy component
Properties
- Appearance
- Red To Brown Liquid
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Color | max. 18 | Gardner | BSMT A 1002-001 |
| Viscosity | 20-50 | Poise | BSMT A 1003-005 |
| Amine Value | 260-300 | Mg/KOH/gm | BSMT A 1019-001 |
Technical Details & Test Data
- Cure Schedules
Several cure schedules may be employed including ambient curing although if solvated systems are employed then the cure rates will be influenced by the chosen solvent system.
CARDAMINE H641X90 will cure at low temperatures [0° C] and under adverse conditions. With ambient cure systems whilst the initial set time may be a matter of hours it may well take several days for the full development of properties. The rate of cure may be accelerated through both the application of heat and/or inclusion of accelerators. Further performance enhancement may be obtained with post-curing operations.
Suggested cure schedule options
- 7 days at ambient condition
Packaging & Availability
- Packaging
This product is supplied in the following standard pack sizes. [alternate packaging may be available upon request]
- 210 lt drums – tight head at 200 KG net weight
- IBC units at 1000 KG net weight
Storage & Handling
- Storage
CARDAMINE H641X90 should be kept in the original containers and sealed. Containers should be stored in a cool, dry place in compliance with the appropriate legislative controls.
CARDAMINE H641X90 will absorb moisture and carbon dioxide, which may influence the physical properties and cure when reacted with epoxy resins.
- Shelf Life
If stored in accordance with the guidelines provided this grade has a minimum shelf life of 12 months. If material is held beyond this period of time then it should be evaluated to confirm that it remains suitable.