Alan Harper Composites Ltd.

Global leaders in reusable vacuum-membrane technology – a closed moulding process that offers production cost savings and efficiencies over traditional composite moulding methods. Converting and supporting wetlay, infusion, LRTM and prepreg part manufacturers with lower costs and reduced waste.

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

Additional Locations:
Sift Center SDN BHD No. 10, Jalan Bunga Melur 3, Taman Suria Jaya
Cheras, 56000 MY
60 16 666 5609

Ciech SA ul. Wspólna 62
Warszawa, 00-684 PL
48 667 948 306

Resintex Technology Srl Via Armando Vona, 25
Frosinone, 03100 IT
39 0775 898325

GRP Japan Co. Ltd. 6F, 4-2-15, Goko-dori
Chou-ku, 651-0087 JP
81 782 651 671

Marky Industries Pty Ltd. 1 Magnesium Drive, Crestmead
Brisbane, QLD 4132 AU
61 738 036244


As Seen In CompositesWorld

SAERcore LEO micro sandwich for fire retardant composites

Withstanding fire without the weight
New composites meet stringent fire requirements while lightweighting ships, rail cars and battery boxes for electric cars and planes.

RVB Infusion = Light RTM?
There is some difference of opinion as to whether parts infused under reusable vacuum bags (RVBs) are the equivalent of those produced by Light resin transfer molding (RTM). See why.

Reusable vacuum membranes: Coming of age?
Durable custom elastomeric bags cut consumables cost and boost rate production.

Product Categories of Alan Harper Composites Ltd.

Primary manufacturing equipment
  • Bladder molding equipment (formerly pressure bag)
  • Vacuum-assisted resin transfer molding equipment (VARTM
  • Other primary manufacturing equipment
Tools/tooling materials
  • Other tools/tooling materials
  • Tools
    • Integrally heated
    • RTM/resin infusion
    • Resin injection
    • Composite
      • Composite, other
  • Mandrels
    • Mandrels, inflatable
  • Tooling equipment, materials and supplies
    • Flexible mold materials
    • Tooling prepreg
Auxiliary processing equipment, repair equipment, and supplies
  • Auxiliary processing equipment
    • Heaters
  • Composite repair equipment
    • Heater blankets
    • Heaters
    • Vacuum/repair tables (heated/unheated)
  • Supplies
    • Bleeder cloths
    • Breather cloths
    • Film and sheet
    • Quick disconnects for vacuum hoses
    • Vacuum valves and pumps
    • Wiping cloths
    • Vacuum bags/bagging materials
      • Vacuum bagging materials, for >600 F
      • Vacuum bagging materials, reusable
      • Vacuum bagging materials, silicone
      • Vacuum bagging materials, other
Fiber converting/prepreg manufacturing equipment
  • Metering/dispensing equipment
Fabricating services
  • Thermoset materials
    • Hand layup
    • Resin transfer molding (RTM)
    • Vacuum-assisted resin transfer molding (VARTM)
Design, testing, consulting, other services
  • Education/Training