PURANATE M26 is a modified polyisocyanate supplied by Jiahua Chemicals Inc, based on a functional isocyanate and diphenylmethane diisocyanate (MDI) mixture. Supplied as a brown liquid at room temperature, it is used as a core raw material in polyurethane foam production, offering good cell openness and high process tolerance for formulators in the automotive, furniture, and toys industries.

PURANATE M26 Product Overview
This product belongs to the modified polyisocyanate series manufactured by Jiahua Chemicals Inc, a Shanghai-based polyurethane raw material producer. It combines functional isocyanate groups with diphenylmethane diisocyanate to deliver a reactive intermediate suited to a range of flexible polyurethane foam processes, including viscoelastic (memory) foam, continuous slabstock lines, and high-resilience molded foam. It is part of the broader modified MDI (methylene diphenyl diisocyanate) chemical family, commonly referenced under CAS 9016-87-9 for polymeric MDI-based products of this type.
Key Features and Benefits
- Good cell openness â supports consistent, breathable foam structure across production runs.
- High process tolerance â a forgiving processing window helps foam producers maintain quality across varying plant conditions.
- Reactive isocyanate chemistry â functional isocyanate groups combined with MDI provide the crosslinking reactivity needed for foam curing.
- Suited to multiple foam types â applicable across viscoelastic, slabstock, and molded foam processes.
Technical Specifications
- Viscosity (25°C): 140â220 mPa·s, tested per GB/T 12008.7
- NCO content: 26.2% ± 0.5%, tested per HG/T 2409
- Density: 1.18 g/cm³, tested per GB/T 4472
Buyers sourcing PURANATE M26 for formulation work can cross-reference these values against the current technical data sheet, and request the manufacturer’s SDS for full hazard classification data before processing.
Applications in Polyurethane Foam
It is formulated as a core raw material for flexible polyurethane foam manufacturing, with particular relevance to automotive, furniture, and toys applications where cell structure and process consistency affect finished part quality. Fabricators working across viscoelastic memory foam, continuous slabstock lines, and high-resilience molded foam can source this material for formulation trials and bulk production.
Packaging and Storage
PURANATE M26 is packaged in 240kg drums for standard industrial handling and transport. It should be strictly sealed at room temperature (20â40°C) in a well-ventilated room; if storage temperature falls below 10°C, the product may require reconditioning before use. Because this material reacts readily with moisture, drums should remain sealed and protected under dry nitrogen until use.
Safe Handling Instructions
Due to its active chemical nature, this product reacts easily with water to form insoluble urea compounds and release carbon dioxide. In case of contact with eyes, rinse immediately with plenty of water and seek immediate medical attention in severe cases. In case of contact with skin, rinse with soapy water. Operators should use proper personal protective equipment throughout handling. Buyers can review general isocyanate handling guidance through the NIOSH isocyanates safety reference alongside the manufacturer’s SDS before setting up a handling procedure at their facility.
Sourcing PURANATE M26 for Polyurethane Foam Production
Composite and foam manufacturers can source PURANATE M26 and related auxiliary agent products through our supply chain for formulation trials or bulk orders. As one of the recommended international brand products in our additive range, it is supplied with full technical support, and we are not an authorized Jiahua Chemicals distributor.
Frequently Asked Questions About PURANATE M26
What is PURANATE M26 used for?
It is used as a core raw material in flexible polyurethane foam production, including viscoelastic memory foam, continuous slabstock, and high-resilience molded foam.
What is the NCO content of this product?
It has an NCO content of 26.2% ± 0.5%, tested per HG/T 2409.
How is it packaged and stored?
It is packaged in 240kg drums and should be sealed at room temperature between 20â40°C in a well-ventilated area, protected from moisture.
Can I request a TDS or SDS for PURANATE M26?
Yes, technical data sheets and SDS documentation are available on request through our team.
Who manufactures this product?
It is manufactured by Jiahua Chemicals Inc, a Shanghai-based polyurethane raw material producer.
Get a Quote contact our team for a quote, technical data sheet, or SDS for PURANATE M26. We support bulk supply and global shipping for polyurethane foam manufacturers sourcing modified polyisocyanate.