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Identification & Functionality
- Chemical Family
- CASE Ingredients Functions
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- CASE Ingredients Features
- General Features and Advantages
Styacryl NMS 1021 is raw material for the coatings industry, including:
- Gloss varnish
- Clear coatings
- Not pigmented coatings
Advantages
- High outdoor durability
- High gloss form
- Very good scratch & block resistance
- Superior Alkali Resistance
- Lower water uptake
Applications & Uses
- Applications
- Coating Type
- Usage
Styacryl NMS 1021 dries at temperatures higher than approx. 12 °C to form crack-free films with high elasticity, high alkali resistance and small water absorption. Because of the medium MFFT of the dispersion, only low amounts of coalescing agents are necessary in paint formula-tions(Texanol show good result ) . When applying pigmented gloss paints in thick coatings or on highly porous substrates it is advisable to use sufficient amounts of propylene glycol to prolong the open time. An over dosage may however have an adverse effect on the wet adhesion.
Salts of low molecular weight polyacrylic acids work well as dispersing agents, sometimes in combination with suitable wetting agents (for example Disperbyk 190 ) . Depending on the na-ture of the pigments and extenders, the required quantity is in range between 0.1 and 0.4 % ac-tive substance of dispersing agent relative to the pigment/extender mixture. To obtain high gloss values of the dried paint film it is necessary to use a mill base. The addition of suitable as-sociative acrylic PU thickeners imparts rheological properties to gloss paints similar to those of conventional alkyd paints. Many commercially available defoamers can be included in order to prevent excessive foaming in the paints. Trials must be carried out to determine the most suitable grades.
Properties
- Appearance
- Hard, Flexible, Clear and Tack free
- Physical Properties
- Film Properties
| Value | Units | Test Method / Conditions | |
| Solids content (130 °C , 30min) | 49±1 | % | ISO 3251 |
| Brookfield viscosity (25 °C, 4/20) | 7500 ±5000 | mPa.s | ISO 2555 |
| pH value | 7.0-9.0 | - | ISO 976 |
| Value | Units | Test Method / Conditions | |
| Particle size | 100 | μm | - |
| Minimum film forming temperature | 12 | °C | ISO 2115 |
| Glass transition temperature | 20 | °C | ISO 16805 |
Safety & Health
- Product Safety and Environmental Protection
The usual protective measures employed during the handling of aqueous polymer emulsions should be observed.
Storage & Handling
- Preservation and Storage
The dispersion contains some initial preservatives to prevent attack by microorganisms. In order that the product is also sufficiently protected against microbial contamination during further storage in opened drums, tanks or other storage facilities a suitable preservative should be added despite our preliminary preservation measures and the tanks and pipe work should be kept adequately clean. Emulsion has minimum shelf life of 6 months from the dispatch date, provided the product is at temperatures between 5 °C and 25° C, avoiding frost and direct sunlight. Furthermore, it must be ensured that already opened drums and containers are always tightly closed. For bulk storage, additional conditions like the addition of preservatives or frequent stirring are technically applicable and recommended. To remove any skins or lumps that could have been formed during longer storage of the dispersion due to its film forming nature a filtration or sieve process is recommendable before further processing. The technical data ascertained by our quality control laboratory at the time of product release may vary according to the storage time and storage conditions and may deviate from the original values.