SHD Prepreg composite material
Bio-Content prepreg

MTB350

Med Temp Cure - 30% bio-based
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Key Features & Benefits

Key Feature 30% bio-based content, long outlife, structural component system
Application Multi-purpose 30% bio content system with exceptional outlife. For use with all fibre types, including flax.
Initial Cure Temp 80°C- 140°C
Initial Cure Time 16 Hours- 15 mins Hours
Post Cure Option Yes
Outlife 182 - 365 days at 20°C
TG Onset* 171°C -DMA
TG Peak* 190°C -DMA
Toughened Yes
Cure Autoclave
Availability Uk/eu

MTB350 is a unique epoxy resin system with 30% bio content derived from a renewable source. It has an outstanding shelf life at room temperature and is designed to cure between 120°C (248°F) and 140°C (284°F), allowing flexibility in component manufacture. MTB350 is a toughened epoxy resin system designed for component manufacturing and can be supplied in a variety of fabric and UD formats. It's inherent low viscosity allows for improved impregnation on natural fibre reinforcements. MTB350 can be stored and transported at ambient temperatures without detriment to the product potentially removing the requirement for cold storage.

Why choose this material

MTB350 offers a 30% bio-based system to help meet sustainability goals whilst providing long outlife and structural performance. You don't need to sacrifice performance for sustainability with this prepreg system.

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 solution for Motorsport Advanced composite solutions for a car Advanced composite solutions for aerospace (passenger plane seating) Jet plane Tooling Prepregs Natural Fibre Composites SHD support a number of markets, including Marine, Sport and Leisure, Defence, Industrial and Rail.

Recommended markets

Motorsport Automotive Aerospace Defence Tooling Sustainability Other Sectors

Motorsport

SHD Composites is the advanced prepreg partner behind winning race teams
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Automotive

World-class performance with unmatched premium aesthetics for prestigious supercar and hypercar brands
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Aerospace

Advanced composites specified across major commercial aircraft today
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Defence

SHD Composites is actively working on many defence programs with customers around the world
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Tooling

A tool for every geometry, a material for every tool
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Sustainability

Our enhanced sustainability product range has applications in all our key sectors including Aerospace, Automotive, Motorsport, Marine and Sport & Leisure.
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Other Sectors

Our products can be applied to a variety of markets, and this range of applications will always remain important for SHD.
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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 is a more sustainable prepreg for performance composite parts?

MTB350 contains 30% certified bio-derived resin from a renewable source. It is designed for performance components where manufacturers want to reduce environmental impact without moving away from proven epoxy prepreg technology. 

02

Can bio-based prepreg be used with natural fibres?

Yes. MTB350 has been developed to work particularly well with natural fibre reinforcements such as flax. Its low-viscosity resin helps the material fully wet the fibres during manufacture. 

03

Does bio-based prepreg need frozen storage?

Not always. MTB350 can be stored and transported at room temperature for up to six months, potentially reducing the need for frozen transport and storage. 

04

What prepreg is suitable for sustainable automotive or motorsport parts?

MTB350 is designed for general purpose components in markets such as automotive,motorsport, aerospace or defence. It combines 30% bio-derived resin with good all-round performance and can be used with carbon, flax and hybrid reinforcements. 

05

Can sustainable prepreg still handle high temperatures?

Yes. MTB350 can be used at service temperatures of around 140°C (284°F) after post-curing, making it suitable for many performance applications where both heat resistance and lower environmental impact are important. 

Accreditations

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