Alan Harper composites


fiRST Technology Features

  • Reusable up to 500 times
  • Self releasing – No release coats required
  • Cost effective after 8 cycles over consumable bags
  • “Net Shape” Full perfect fit – even for complex shapes and undercuts
  • Bag up in seconds, reduce labour bag up times
  • Sprayable – Time saving
  • Odorless – No solvents, no VOCs
  • No Silicone contamination
  • Safe for Aerospace application
  • Up to 240 C service temperature
  • Built in Vacuum seal
  • Vacuum secure built in fittings
  • As low as 4 hours from manufacture to production use
  • Ideal for infusion, Prepreg and de baulk
fiRST® is the most recent closed mould technology providing rapid production of reusable silicon membrane B tool faces which also allow ease of manufacture for undercut designs (negative draft).
fiRST is todays proven alternative to costly one use consumable vacuum bags used in the composite moulding industry today.
Almost everyone will agree that there is a need to find an alternative to costly and wasteful consumable vacuum bags whilst still maintaining the flexibility of bagging film technology for infusion, pre preg and de baulk activities.

fiRST offers the solution in offering all that is needed to convert to a less wasteful and more economic reusable vacuum bag approach. A range of machines to spray manufacture the vacuum bags is offered to suite your budget.

fiRST system also offers a comprehensive range of vacuum bag accessories to ensure successful manufacture, vacuum secure and robust use of your bag.

After 42 years experience within the fibre composite moulding community involved specifically with environmentally safer closed mould production tooling the transition to a self releasing reusable vacuum bags became an obvious choice to develop. Based upon earlier rigid metal and composite moulds the fiRST system was proven to be the most economic solution to many of the earlier system drawbacks.

Vacuum bag moulds can be manufactured in a few hours and put into production the same day. If you are a moulder of composite parts for standard polyester frp components to advanced aerospace primary structures and wish to advance into a lower cost and cleaner production then fiRST is the way forward

Our Products

Manufacturing the Tools for the Technology

We provide the full range of reusable bag manufacturing machines and proprietary ancillaries.
What is fiRST®

Find out what fiRST can do for you

fiRST is the most recent closed mould technology providing a clean and cost effective composite production process.
Our Services

Services to compliment the technology

Alan Harper Composites Ltd supports the fiRST technology with a range of services.
Free VPI™ Guide

Saving you time, and money

Are you looking for composite moulding? we’d love to send you a free copy of our new guide to show you more…


Please feel free to contact us to discuss your next project

+44 (0) 1752 841 222

Alan: +44 (0) 7768 335 600

4 Gwel Avon Business Park, Gilston Road, Saltash, Cornwall, PL12 6TW