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High-Performance Solutions

Choosing a Readily Available Alternative to Cycom® 3002 Polyimide

Mako’s P-2603 Addition-Cure Polyimide: The Reliable Choice for AMS-3845B Compliance

In the aerospace and defense industries, material reliability and supply chain consistency are non-negotiable. For years, Cycom® 3002 has been a recognized name for high-temperature applications. However, changing market dynamics and long lead times have led engineers to seek a more responsive partner.

Mako Advanced Materials offers a superior alternative: P-2603 Addition-Cure Polyimide. Designed to meet the stringent requirements of AMS-3845B, P-2603 provides the high-temperature performance you expect, backed by Mako’s technical support, industry heritage, and short lead times.

P-2603 vs. Cycom® 3002: At a Glance

When comparing P-2603 to Cycom® 3002 or L-603®, the technical parity is clear, but the logistical advantages of Mako are significant.

P-2603

Chemistry
Addition-Cure Polyimide
Addition-Cure Polyimide
Specification
AMS-3845B
Meets AMS-3845B
Thermal Stability
>450F long / >550F short
>450F long / >550F short
Processing
Standard Autoclave/Press
Seamless Drop-in Replacement
Lead Time
Often Extended
Short Lead Times
Availability
Subject to Global Supply Chain
Readily Available
MOQ
High
Will work your procurement team to understand your expected usage and order cadence

KEY BENEFITS

P-2603 Polyimide Prepreg combines specification compliance, reliable availability, and responsive technical support to help manufacturers meet demanding performance requirements while keeping critical aerospace and industrial programs moving.

1
Fully Compliant with AMS-3845B

P-2603 is engineered specifically to meet the AMS-3845B specification (Class 1 or 2, all Styles). It delivers the necessary glass transition temperatures (Tg) and mechanical properties required for structural applications in high temp ducts, exhaust wrap, jet engines, airframes, and high-performance industrial equipment. It is most commonly supplied on 7781 style fiberglass with black dye.

2
Fully Compliant with AMS-3845B

Project timelines don’t wait for “out of stock” notices. While other manufacturers are struggling with backlogs, Mako Advanced Materials prioritizes a robust inventory of resin ingredients and common fabrics. We offer significantly shorter lead times than Cycom® 3002 or L-603® polyimide prepregs, ensuring your production line stays moving.

3
Responsive Technical Support

At Mako Advanced Materials, you aren’t just buying a resin; you’re gaining a technical partner. Our sales and engineering teams are highly responsive, providing qualification support, testing, documentation, TDS, SDS, and processing guidance you need to qualify P-2603 Polyimide as an offset or alternative for your specific program.

Applications for P-2603

P-2603 Short Lead Time Polyimide Prepreg is the ideal solution for parts requiring high strength and long-term heat resistance up to 450F (230C) and short-term exposure up to 555F (290C) including: