Knowde Enhanced TDS
Identification & Functionality
- Carrier
- Chemical Family
- CASE Ingredients Functions
- Technologies
- Product Families
- Composition
Approx. 30 % of drying fatty acids (calculated as triglyceride)
Styrene content: approx. 29%
Applications & Uses
- Applications
- Compatible Substrates & Surfaces
- Cure Method
- Coating Type
- Uses
Very fast drying primers, wash primers, fast drying synthetic resin-based paints, hammer
finish paints
Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Non Volatile Content | 55 | w % | AV-F-F003 |
| Acid Value | max. 15 | mg KOH/g | - |
| Color value (Iodine) | Max. 10 | - | - |
| Flow Time | 100-150 | sec | AV-F-V003 |
Technical Details & Test Data
- Film Properties and Processing
Synthalat SF 260, a styrene-modified alkyd resin, is used preferably as the sole binder for
very fast drying primers and topcoats. It is also very well suited for air- and stove-drying
hammer finish paints. With Synthalat SF 260 drying times can be achieved that are
comparable to those of physically drying binders.
Synthalat SF 260 has a substantial pigment loading which makes possible especially primers
with a relatively high pigment volume concentration (up to 45%) without adversely affecting
the mechanical film properties. For wash primers and anti-corrosive primers the type and
amount of pigments and fillers are very important. Besides zinc chromate and red iron oxide
particularly flaked fillers like talc have given good results. Incorporation of small amounts of
special types of calcium carbonate (e.g. Millicarb OG) is possible.
To obtain a good overspray tolerance and also with nitrocellulose, it is necessary to maintain
pigment volume concentration in primers of at least about 40%. For high gloss topcoats,
however, the pigment volume concentration must be kept below 20% if possible to obtain a
good gloss retention.
While driers should be avoided in highly pigmented mainly to ensure of a good overspray
tolerance, topcoats require small amounts of cobalt naphthenate or octoate to promote
oxidative cross-linking. Relative to 100% Synthalat SF 260 we recommend addition of 0.02 -
0.04 % cobalt metal. Lead and manganese driers should be avoided if possible because of
the storage stability of the finished paints. Incorporation of common anti-skinning agents is
always advisable.
Dilution should be preferably with aromatic hydrocarbons. Addition of higher esters such as
ethyl glycol acetate has proved advantageous for spray application.
Packaging & Availability
- Supplied AS
55 % in xylene