FOCUS ON CHEMICAL RESEARCH & MANUFACTURE
| Place of Origin: | CHINA |
|---|---|
| Brand Name: | ShenZhen Prechem New Materials Co.,Ltd |
| Certification: | ISO9001 |
| Model Number: | SOLVENT |
| Minimum Order Quantity: | NEGOTIABLE |
| Price: | NEGOTIABLE |
| Packaging Details: | 200KG/PE DRUM; 1000KG/IBC; 20MT/ISOTANK |
| Delivery Time: | NEGOTIABLE |
| Payment Terms: | NEGOTIABLE |
| Supply Ability: | 3000MT/YEAR |
| Molecular Formula: | CH3COO（CH2O）nCH3 N=2-6 | CAS NO.: | 13352-75-5/ 628-90-0 |
|---|---|---|---|
| Appearance: | Colorless, Transparent Liquid | Purity: | ≥99% |
| Chroma (Pt-Co): | ≤15 | Boiling Point: | 150-240℃ |
| Flash Point: | 58℃ | Density: | 1.032g/cm³（25℃） |
| Refractive Index: | N20/D1.401 | Evaporation Rate (n-butyl Acetate =1): | 0.17 |
| Fusion Piont: | -10℃ |
Polyoxymethylene Dimethyl Ethers PDM Clean Paint Matching Diluent
Product Description
PDM is a kind of clean taste environmental protection, low thin slow drying solvent, low smell, can be used for clean taste paint or supporting thinner; The middle part of the molecule of PDM is polyformaldehyde with low degree of polymerization, and both ends are capped by methyl. General formaldehyde, paraformaldehyde and triaformaldehyde provide polyformaldehyde with low degree of polymerization, while methanol, methylal and dimethyl ether provide the capped methyl group, which is condensed on acid catalyst. The steric resistance between molecules is low, with a unique high fugacity coefficient, so as to the film forming stage, provide ultra-high stability, is conducive to the overflow of gas, especially in the film forming later volatilization fast enough, the formation of continuous stable coating performance, is conducive to wet film self-leveling, improve product gloss, prevent foaming.
PDM is suitable for PU, PE polyester, polyester polyol, thermoplastic acrylic acid, thermosetting acrylic acid and other systems.
Because the product itself is neutral, it does not contain ammonia and free acid and other components, the water content is extremely low ≤0.05. So it also suitable for special thermal curing+UV curing system, for single UV curing, and the system will have certain oxygen inhibition characteristics.
Typical Properties
| Molecular formula |
CH3COO(CH2O)nCH3 n=2-6 |
| Molecular weight | 134-254 |
| CAS NO. | 13352-75-5/628-90-0 |
| Appearance | Colorless, transparent liquid |
| Chroma (pt-co) | ≤15 |
| Flash point ℃ | 58℃ |
| Boiling point | 160-200℃(13mmHg) |
| Density | 1.032g/cm³ (25℃) |
| Refractive index | n20/D1.401 |
| Evaporation rate (n-butyl acetate =1) | 0.17 |
Product Features
• Normal evaporation rate with high stability in film coalescing, high gloss and smooth.
• Greater solubility than PMA & CAC, and owns amphipathic feature.
• Lower odor than PMA, CAC, cyclohexanone.
• Great levelling performance, better than PMA & CAC.
• High cetane ratio.When used as diesel fuel additives, it improves the combustion efficiency and reduces the emissions.
Product Applications
• PDM could be widely used in wood coatings, coil coating, baked coating, and can highly • reduce the leaving odor.
• Use as a solvent, dispersant or diluent in coatings, ink, dyeing, pesticides, cellulose
• PDM can substitute for PMA, DBE and CAC etc.
• Excellent solvent for nitrofiber, alkyd resin, or phenolic resin modified with anhymalic hydride.
• Widely applied in a variety of fields, such as coating, painting, ink, architecture, textile, resins etc.
Packing & Storage
• 200kg/drum
• 1000kg/ IBC
• 20,000 kg ISO tanks
• store in a dry, well ventilated place.
