Meldin® Polyimides

Meldin® 7000
Meldin®
7000 PI Based

A thermosetting polyimide, the Meldin® 7000 material series exhibits extremely high dimensional stability at elevated temperatures. Testing has shown that Meldin® materials have less than 0.04% variation from their original dimensions after cycling from 73°F (22.77°C) to 500°F (260°C) over a two-day period.

This material is able to withstand thermal shocks very well, adding to the dimensional stability of the material. One particular grade - Meldin® 7022 exhibits an extremely low coefficient of thermal expansion, resulting in a thermal expansion behavior similar to aluminum.

These compounds can also be formulated with other fillers to increase the mechanical and thermal performances of the final parts. In addition, the Meldin® 7000 PI series is processed via direct forming which enhances the cost-effectiveness and productivity. 

See More

The self-lubricating grades of Meldin® do not melt when exposed to high load (P), or high speed (V) applications, as compared to more traditional PTFE or thermoplastic polymers. P x V limits for Meldin® self-lubricating grades exceed 300,000 psi·ft/min (10.5 W/mm2) in dry environments and past 1,000,000 psi·ft/min (35.0 W/mm2) in liquid or grease lubricated environments.

Download the Meldin® 7001-HCM Datasheet
Download the Meldin® 7021-HCM Datasheet
Standard Specifications
Materials

Polyimide (PI) Based
Engineered for extreme temperature

Service conditions

Temperature: -200°C to +315°C
Max load: 40 MPa

Features

Tolerance control: +/- 10 um

Dimension

Rods: (phi) 80mm x (L)1m
Tubes: (phi) 10,5mm x (L)50mm
Sheets: (L,W) 300mm x (T)50mm
Custom shapes: (L,W) 180mm x (T)50m

  • Self-lubrication
  • Long durability under extreme temperature and load
  • Dimensional stability in chemicals
  • Consistency with 100% part inspection

Discover More

Meldin® 7000 is a popular choice for structural parts in aviation and other applications where metal replacement is desirable. The purity of Meldin® in combination with its other properties, makes this material the ideal choice for semi-conductor applications, successfully replacing aluminum, ceramic, and other high-performance plastics. The Meldin® 7021 line has 15% by weight graphite fillers, which makes it self-lubricating. This provides customers the best all-around choice for high-temperature bearings, seals, thrust washers, and other low-wear applications.

Omniseal Solutions can help you with your project

Industry

A team of expert designers

Design Engineering

Customized products and materials to suit your projects

Extreme Applications

Expert of critical seals

Omniseal Solutions can help you with your project

Market and case studies