SHD Prepreg composite material
Bio-Content prepreg

LTB310-1

30% bio based Epoxy Carbon/Glass Tooling
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Key Features & Benefits

Key Feature Longer outlife bio-based tooling compared to LTB300
Application Commercial low temp epoxy tooling with 30% bio content
Initial Cure Temp 115°F- 160°F
Initial Cure Time 40 Hours- 4 Hours
Post Cure Option Yes
Outlife 4 days at 70°F
TG Onset* 394°F -DMA
TG Peak* 446°F -DMA
Toughened No
Cure Autoclave
Availability All sites

LTB310-1 is an epoxy resin tooling system with 30% bio content derived from a renewable source and is designed to cure at low temperatures whilst giving the potential for high temperature tooling. It can be supplied on a variety of fabrics to meet your cost and manufacturing requirements.

Why choose this material

LTB310-1 is a longer outlife version of LTB300, offering the same benefits with a longer work life for increased flexibility.

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) Military drone 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 Defense 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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Defense

SHD Composites is actively working on many defense 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 1.0°C (2.0°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 high-temperature composite tooling?

LTB310-1 contains 30% bio-based content from a renewable source. It offers a lower-impact option for composite tooling while still providing the high-temperature performance needed for demanding manufacturing applications. 

02

Can bio-based prepreg be used for high-temperature tooling?

Yes. LTB310-1 cures at relatively low temperatures but can achieve a Tg of around 390°C (734°F) after post-curing. This makes it suitable for tooling that will later be exposed to much higher temperatures. 

03

What is the difference between LTB310-1 and LTB300?

LTB310-1 offers the same 30% bio-based content as LTB300, but with a longer working and storage life. This gives manufacturers more time and flexibility when laying up larger or more complex tools. 

04

Can low-temperature prepregs be used for large composite tools?

Yes. LTB310-1 can cure from 45°C (115°F) and has a low-viscosity resin suited to heavier reinforcements. This makes it a practical option for larger tooling where easy handling and low-temperature processing are important. 

05

Can sustainable tooling prepreg use natural fibres?

Yes. LTB310-1 can be supplied with natural fibre and flax/carbon hybrid reinforcements, as well as standard carbon and glass options. This gives manufacturers more choice when looking to reduce the environmental impact of composite tooling. 

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