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Help CenterWanhua WANNATE PM-200 Isocyanate
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Wanhua WANNATE® PM-200 is a polymeric MDI (methylene diphenyl diisocyanate) widely used in polyurethane applications. It is ideal for producing rigid foam, integral skin foam, and high-resilience flexible foam. Common applications include insulation materials for refrigerators and construction, automotive interiors, adhesives, coatings, and elastomers. PM-200 offers excellent reactivity, flowability, and mechanical strength, making it suitable for continuous and discontinuous panel production. Its stable performance under various processing conditions ensures consistent product quality. Additionally, PM-200 is frequently used in composite wood products and molded foam parts, providing durability and thermal insulation across industrial and consumer product segments.
Typical Physical and Chemical Properties
Appearance: Brown liquid
Viscosity (25℃): 150–250 mPa·s
NCO Content: 30.5–32.0%
Density (25℃): 1.220–1.250 g/cm³
Acidity: ≤ 0.030%
Hydrolyzable Chlorine Content: ≤ 0.20%
Main Applications
WANNATE® PM-200 is a polymeric diphenylmethane diisocyanate (Polymeric MDI) with a functionality of approximately 2.6–2.7. It is widely used in polyurethane production systems, especially those requiring excellent flowability. Main applications include:
Rigid polyurethane foam insulation materials
Polyisocyanurate (PIR) foams
Coatings and adhesives
Structural foams
Integral skin foams
Automotive bumpers and interior parts
High-resilience foams
Synthetic wood and similar products
Thanks to its unique composition, WANNATE® PM-200 offers superior flowability, making it especially suitable for processes with strict flow requirements.
Packaging and Storage
Packaging: 210L iron drum, 250kg per drum
Storage Conditions:
Store at 15–35℃, avoiding direct sunlight.
Containers must be kept dry and sealed under nitrogen to avoid reactions with moisture, which may generate insoluble ureas and CO₂, leading to pressure build-up and increased viscosity.
Storage below 5℃ may cause crystallization. If crystallized, drums should be rolled and heated in a hot air oven at 70–80℃ until fully melted, then thoroughly mixed before use.
Do not heat using a water bath.
Avoid long-term storage above 50℃ to prevent formation of insoluble solids and viscosity increase.
Shelf Life
Under recommended storage conditions, the shelf life of WANNATE® PM-200 is one year from the date of manufacture.
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