# Polyurethanes (MDI, TDI, polyols) and Propylene oxide

Their prices have moved together.

Source page: https://www.materialinsights.org/links/polyurethanes-mdi-tdi-polyols-and-propylene-oxide/

[Polyurethanes (MDI, TDI, polyols)](https://www.materialinsights.org/chemicals/polyurethanes/) (chemical) and [Propylene oxide](https://www.materialinsights.org/chemicals/propylene_oxide/) (chemical): 1 relationship.

## How they are linked

### 1. Price link: main product

*Cost and price · Strong · Both ways*

Polyether polyols made from propylene oxide react with MDI or TDI to form polyurethane foam. The thermosetting resins proxy moves with the basic organics proxy at 0.24 monthly and 0.74 yearly.

- **0.24** monthly change correlation
- **0.74** 12-month change correlation
- **1.55** fitted elasticity

Built from the site data on production routes, energy flows, industry value chains, input-output tables and prices.