产品别名 |
润湿分散剂,降粘剂,防发花分散剂,颜料分散剂 |
面向地区 |
全国 |
品牌 |
DOPPEL |
包装规格 |
25kg/桶 |
用途、使用范围 |
涂料 |
CAS |
其它 |
型号 |
DIS-702 |
DIS-702
Controlled fl occulating wetting and dispersing additive for solvent-borne medium-polar to non-polar thick layer systems and primers to prevent fi llers and inorganic pigments from settling and to gel bentonites.
Product Data
Composition:
Solution of a polycarboxylic acid salt of polyamine amides
Typical Properties
The values indicated in this data sheet describe typical properties and do not constitute specifi cation limits
Acid value: 150 mg KOH/g
Density (20 °C): 0.94 g/ml
Non-volatile matter (10 min., 150 °C): 80%
Solvents: Xylene/diisobutyl ketone
Flash point: 28 °C
Amine value 39 mg KOH/g
Applications
Coatings Industry
Special Features and Benefits
The additive acts by controlled flocculating the pigments. This also prevents sagging and keeps the pigments from settling as well as flooding and fl oating. DIS-702 is also suitable for non-polar systems (white spirit compatible). The lower the polarity, the stronger the thixotropic effect will be. Long, middle, and short oil alkyds, PVC copolymers, chlorinated rubber and epoxies are the preferred binders. It can often improve anticorrosive properties when used in protective coating primers.
Recommended Use
Especially recommended applications: Industrial coatings, wood and furniture coatings, protective coatings.
Recommended application: Architectural coatings
Recommended Levels
Amount of additive (as supplied) based upon pigment:
Inorganic pigments: 1-2.5 %
Titanium dioxide/Fillers: 0.5-1.5 %
Bentonites: 30-50 %
The above recommended levels can be used for orientation. Optimal levels are determined through a series of laboratory tests.
The following suggested formulation can be used to gel bentonites:
85-87 parts (by weight) solvents
10 parts (by weight) bentonites
5-3 parts (by weight) additive
The solvent can be aromatic or aromatic white spirit, although aromatic-free white spirit is also suitable.
If the gelling effect is not sufficient, polar solvents may be added to increase it.
