SHD Prepreg composite material
Epoxy prepreg

MTC412

Med Temp Cure, High Temp Service OOA
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Key Features & Benefits

Key Feature High service temperature and out of autoclave processing
Application High service temp and Out of Autoclave processing typically for Aerospace applications
Initial Cure Temp 175°F- 300°F
Initial Cure Time 16 Hours- 1 Hours
Post Cure Option Yes
Outlife 28 days at 70°F
TG Onset* 338°F -DMA
TG Peak* 374°F -DMA
Toughened Yes
Cure Autoclave and Oven
Availability All sites

MTC412 epoxy prepreg is designed to give enhanced toughness and higher service temperature with the flexibility of out of autoclave manufacture. It is a sided system giving great flexibility in component manufacture. MTC412 is a highly toughened system that can be supplied with any standard reinforcement to meet your cost and manufacturing requirements.

Why choose this material

MTC412 has been optimised for Out of Autoclave processing to deliver structural parts with a high service temperature. It is also a sided system to give you greater flexibility when manufacturing components.

Supplied with SHD's renowned service, including:

  • Short two-week lead times and low MOQs

  • Exceptional product quality

  • First class technical support

  • Excellent customer service

  • The same manufacturing equipment and processes across all sites

Advanced composite solutions for aerospace (passenger plane seating)

Recommended markets

Aerospace

Advanced composites specified across major commercial aircraft today
Find out more

Technical Guidance Information

01

Storage and Out Life

This material should be kept frozen at -18°C (0°F). It must be kept sealed in a polythene bag which must not be opened until fully thawed to room temperature. If the material is not fully used, then the material must be resealed in the polythene bag to prevent moisture absorption.

02

Health and Safety

This material contains epoxy resin which can cause allergic reactions with skin contact and must avoid repeated and prolonged skin contact.

Please refer to the product Safety Data Sheet before using this material. The following precautions must be taken when using epoxy resin prepregs:

  • Overalls must be worn

  • Impervious gloves must be worn

  • Curing schedule is meant to be as a guide only and is subject to local conditions

  • To avoid exotherm, particular care must be taken with thick laminates

  • Ramp rates must not exceed 3.0°C (5.4°F)/min during initial cure and 0.3°C (0.5°F)/min during post cure

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Frequently Asked Questions

01

What prepreg is suitable for high-temperature aerospace parts without an autoclave?

MTC412 is designed for aerospace structures that need high heat resistance without autoclave processing. It can be cured in an oven and, after post-curing, can reach a Tg of around 160°C (320°F). 

02

Can structural prepreg be cured out of autoclave?

Yes. MTC412 is specifically developed for out-of-autoclave processing, giving manufacturers more flexibility when making structural composite parts without relying on autoclave equipment. 

03

What prepreg is suitable for aerospace structures exposed to heat?

MTC412 is a strong option for aerospace structures that need both toughness and higher temperature performance. It is designed to keep its properties in demanding conditions while still allowing flexible oven or autoclave processing. 

04

Is there a tough prepreg with a long working life?

Yes. MTC412 is highly toughened and offers around 30 days of working life at 20°C (70°F). This gives manufacturers more time to complete larger or more complex lay-ups before curing. 

05

Can MTC412 be supplied with different fibre reinforcements?

Yes. MTC412 can be supplied with standard reinforcement options to suit different cost, strength and manufacturing needs, making it adaptable to a wide range of structural aerospace applications. 

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