Polyoxymethylene Dimethyl Ethers PDM Clean Paint Matching Diluent
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
PDM is suitable for PU, PE polyester, polyester polyol,
thermoplastic acrylic acid, thermosetting acrylic acid and other
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.
|Appearance||Colorless, transparent liquid|
|Flash point ℃||58℃|
|Evaporation rate (n-butyl acetate =1)||0.17|
• Normal evaporation rate with high stability in film coalescing,
high gloss and smooth.
• Greater solubility than PMA & CAC, and owns amphipathic
• 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.
• 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,
• 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
• 1000kg/ IBC
• 20,000 kg ISO tanks
• store in a dry, well ventilated place.