CAS 127-19-5 Dimethylacetamide (DMAc or DMAC) is a high-boiling-point polar non-protonic solvent. Its exceptional solvency, high boiling point, and strong compatibility with various polymers and resins make it widely used in the coatings industry.
In coating formulations, DMAc aids in dissolving complex polymers, improves film-forming properties, and maintains stable viscosity during application and curing.
Synonyms:
- N,N-Dimethylacetamide (Full IUPAC name)
- DMAc or DMAC (Common abbreviations)
- Dimethyl acetamide
- Acetic acid dimethylamide
What Are the Uses of Dimethylacetamide Solvent in Coatings?
1. Polyurethane Coatings: Dimethylacetamide solvent DMAc serves as the primary solvent in polyurethane coating production, offering excellent film-forming properties and long-term stability.
2. Polyimide Coatings/Films: N,N-Dimethylacetamide is the ideal solvent for high-performance polyimide resins, widely used in electronics, aerospace, and insulation coating applications.
3. Paint strippers and coating removers: Leveraging its strong solvent properties, DMAc is incorporated into formulations to efficiently remove paint and coatings.
4. Specialty coatings: Utilized in acrylic fiber spinning and the production of heat-resistant, durable coatings to meet diverse industrial requirements.
DMAC vs. Other Solvents
| Solvent | Solvent Type | Boiling Point | Typical Coating Applications | Advantages |
|---|---|---|---|---|
| Dimethylacetamide (DMAc) | Polar aprotic solvent | ~165°C | Polyurethane coatings, synthetic leather coatings, specialty polymer coatings | Excellent polymer solubility, high thermal stability, stable viscosity |
| Dimethylformamide (DMF) | Polar aprotic solvent | ~153°C | PU coatings, synthetic leather, specialty coatings | Strong solvency, widely used in polymer coatings |
| Acetone | Polar solvent | ~56°C | Fast-drying coatings, cleaning solvent | Very fast evaporation, low cost |
| Ethyl Acetate | Ester solvent | ~77°C | Paints, varnishes, coatings | Fast drying, widely available |
Notes for Buyers/Manufacturers
When using DMAC in coating production, manufacturers typically focus on the following aspects:
1. Dimethylacetamide Solvent Purity: High-purity solvents help ensure stable and consistent coating performance.
2. Storage Conditions: DMAC should be stored sealed in a cool, well-ventilated area.
3. Packaging Options
Common industrial packaging includes:
- 200 kg drums
- IBC containers
- Bulk tanker supply
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Gneebio Product Packaging
| Packaging Type | Net Weight |
|---|---|
| Steel Drum | 160 kg |
| ISO Tank | 20–22 MT |
| IBC Tank | 800–1000 kg |
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