Polymeric MDI (PMDI) — Rigid Foam & Binder Isocyanate
Polymeric MDI is the higher-functionality isocyanate used in rigid insulation foam, spray foam and wood panel binder systems. Allzone supplies PMDI to Canadian manufacturers with the grade confirmed against supplier documentation and full safety documentation provided.
At a glance
- Product
- Polymeric MDI (PMDI)
- Grades
- Rigid Foam & Binder Isocyanate
- Typical applications
- Rigid polyurethane and polyisocyanurate insulation foam · Spray foam insulation systems · OSB, particleboard and engineered wood binders
- Packaging
- Packaging confirmed at quotation
Handling notice. This product requires review of the supplier technical data sheet and safety data sheet before purchase and use. Request both documents for the exact grade under consideration.
- • Certificate of Analysis is provided against the confirmed shipment, grade and batch.
- • Manufacturer TDS and SDS are subject to grade and supplier confirmation and are available on request.
- • Grades, packaging and origin above are indicative sourcing options and are confirmed at quotation.
Available grades from container-direct sourcing
Rigid Foam & Binder Isocyanate
Grade and specification confirmed against supplier technical data sheet at quotation.
Typical applications
- Rigid polyurethane and polyisocyanurate insulation foam
- Spray foam insulation systems
- OSB, particleboard and engineered wood binders
- Binders for rubber crumb, foundry and composite systems
Why Canadian buyers choose us
- Container-direct sourcing coordinated through our Ontario logistics partner
- Supplier documentation (TDS, SDS, COA) requested and shared before order confirmation
- Specifications confirmed in writing at quotation stage — no assumed values
- LTL and FTL freight across Ontario, Quebec and Western Canada
- Quantities reviewed per enquiry, from smaller lots to full container loads
Typical industries served
Technical & procurement detail
Functional role of polymeric mdi (pmdi)+
PMDI contains a distribution of higher-functionality oligomers, so it crosslinks more densely than pure MDI. That crosslink density is exactly what rigid foam and panel binders need — dimensional stability, compressive strength and thermal performance — and it also makes PMDI the standard binder for engineered wood panels.
Selecting the right grade+
NCO content, viscosity and functionality distribution define the grade and control reactivity and foam rise profile. System type — rigid board, spray foam, panel binder — machine setup and blowing agent determine what is quoted.
Documentation and specification+
Properties differ between producers and between grades of the same material. Allzone confirms the applicable grade with the supplier before quoting and shares the technical data sheet and safety data sheet for the exact material offered, so the values you evaluate are the values you receive.
Frequently asked questions
How is PMDI different from pure MDI?+
PMDI has higher average functionality and gives denser crosslinking, which suits rigid foam and binders. Pure MDI is used where clarity, controlled reactivity and elastomer properties are required. They are quoted as separate products.
Which grade will I be quoted?+
The grade is set by your specification. Share the target performance, process conditions and any customer or regulatory requirement in the RFQ and the matching grade is confirmed with the supplier before quotation.
What packaging is available?+
Packaging is confirmed with the supplier at quotation for the grade and quantity discussed.
Can you deliver across Ontario and Quebec?+
Yes. LTL and FTL freight is arranged across Ontario, Quebec and Western Canada, with container-direct supply for repeat volumes.
Technical knowledge for Polymeric MDI PMDI Supplier — Canada
Engineering and purchasing guidance written for this material — understand it, apply it, compare options, specify a grade, and fix production problems.
Foundation Articles
Application Guides
Comparison Articles
Troubleshooting Guides
Related products
Materials commonly quoted alongside Polymeric MDI (PMDI) by the same plants.
Rheology Modifier
Sag and levelling control in architectural and industrial paints
Need a quote on Polymeric MDI (PMDI)?
Request pricing, TDS/SDS and available documentation. We usually acknowledge enquiries within one business day; samples are subject to supplier availability and product classification.