SHD Prepreg composite material
Epoxy prepreg

APS75

Autoclave Panel System

Key Features & Benefits

Key Feature High class finish with reduced pre-paint preparation
Application Automotive body panels with higher service temp
Initial Cure Temp 150°F- 265°F
Initial Cure Time Consult Data sheet Hours
Post Cure Option Yes
Outlife 21 days at 70°F
TG Onset* 338°F -DMA
TG Peak* 376°F -DMA
Toughened Yes
Cure Autoclave
Availability All sites

APS75 material is designed to give a high class finish with reduced pre-paint preparation and versatile curing. It can be supplied with carbon or glass fabric reinforcement.

Why choose this material

APS75 delivers expectional surface finish on higher temperature components from autoclave processing. Post-processing steps are minimised.

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 a car

Recommended markets

Automotive

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

FAQs

01

What is the best prepreg for high-temperature automotive body panels?

APS75 is designed for automotive and motorsport body panels that need to cope with higher temperatures. It also delivers a smooth, high-quality surface, making it well suited to visible painted parts.

02

How can I reduce surface preparation before painting carbon fibre parts?

APS75 is designed to create a high-quality surface straight from the mould. This can reduce the amount of filling, sanding and preparation needed before painting, helping save time during production.

03

What is the difference between APS75 and OPS75 prepreg?

APS75 is better suited to body panels that need to withstand higher temperatures. OPS75 is more focused on achieving an excellent visible surface finish and offers more flexibility for oven-based processing.

04

Can carbon fibre prepreg be used for painted automotive body panels?

Yes. APS75 can be supplied with carbon fibre and is designed specifically for painted automotive panels. It combines a good surface finish with the strength and temperature resistance needed for demanding vehicle applications.

05

How do you prevent carbon fibre body panels from showing surface defects after heat exposure?

Using a prepreg designed for higher temperatures can help. APS75 is made to keep a good surface finish when exposed to heat, making it a strong choice for visible automotive and motorsport body panels.

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