Knowde Enhanced TDS
Identification & Functionality
- Carrier
- Chemical Family
- CASE Ingredients Functions
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
Applications & Uses
- Markets
- Compatible Polymers & Resins
- Compatible Substrates & Surfaces
- Cure Method
- Uses
In combination with aliphatic polyisocyanates for air- and stove-drying two-component coatings.
These types of 2-component paints should be used preferably wherever maximum resistance
to chemicals and weathering are required.
Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Viscosity | 3.600-4.600 | mPas | AV-F-V005 |
| Color Value (Gardner) | Max. 2 | — | AV-F-F007 |
| Density | 1.00-1.05 | g/ml | AV-F-0D001 |
| Flash point | 30-35 | °C | AV-F-f006 |
| Hydroxyl Content | 175-185 | % | Relative to NVC |
| Hydroxyl Content | 5.7 | % | Relative to NVC |
| Non Volatile Content | 60 | w % | AV-F-F003 |
Technical Details & Test Data
- Film Properties
In combination with aliphatic polyisocyantes non-yellowing for coatings with excellent
weathering resistance and gloss retention are obtained. These types of coatings have a very
high scratch and abrasion resistance combined with a very good solvent resistance. They are
also distinguished by a better flexibilty than those with Synthalat-A 190. Because of the
maximum cross-link density, SYNTHALAT-A 191 gives paints films that have by far the best
resistance to chemicals and abrasion compared with A 045, 065, 085 and A 150/151.- Pigmentation
SYNTHALAT-A 191 has a high pigment loading and a very good pigment wetting. All neutral
pigments and fillers are suitable for pigmentation. Basic pigments containing soluble metallic
compounds may exert a catalytic effect on curing and shorten the pot life of finished mixed
batches.- Catalysis
To accelerate drying, organometallic compounds may be added. Good results have been
obtained with dibutyltin dilaurate in a ratio of 0.1-0.5% DBTL - 1% in xylene (solid).- Mixing ratio with poly-isocyanates
Assuming equivalent reaction of the reactive groups (NCO:OH = 1:1), the following formula
applies for the calculation of the amount of polyisocyanate to be addad (relative to 100 parts by
weight of SYNTHALAT-A 191, solid):
42 X 100 X 5.7
17 X NCO %
42 = molecular weight of the NCO group
17 = molecular weitht of the OH group
5.7 = hydroxyl content of SYNTHALAT-A 191 in % relative to non-volatile
components.
Packaging & Availability
- Supplied AS
60% in shellsol A/butyl acetate (1:1)
Storage & Handling
- Shelf Life
If properly stored, at least one year.