RTM Lite Systems


RTM (Resin Transfer Molding) meter-mix equipment for use in closed molding processes

GS Manufacturings’ line of RTM systems accurately mixes polyester or vinyl ester resins and MEKP (methyl ethyl ketone peroxide) into closed molds containing fiberglass, carbon fiber or other reinforcements. Our RTM systems can be used in light or vacuum assisted processes and are built to order with options such as digital timers, pre determined counters and custom built control boxes.

Examples of industries using our RTM equipment are Marine- boats and personal watercraft, pool and spa, bath ware- tubs and showers, automotive- panels and parts, and aircraft components.

Vacuum Assisted Lite Resin Transfer Unit
  • Low pressure for Lite RTM tooling
  • Reduced styrene emissions
  • Higher production
  • Precise-contnuous mixing
  • Portable or stationary
  • Easy to operate
  • Low maintenance
  • Minimum purge
  • GS MEKP slave pump
  • Optional timers, MEKP alarm
  • Turn-key system available with vacuum pumps



LWRTM-LT: 5 Gallon Pail Unit (pail mounted)

LWRTM-LT1: Floor/Mast Mounted (5 or 55 gallon)

LWRTM-LT2: 5 Gallon Portable (pail siphon)

LWRTM-LT3: 55 Gallon Portable (drum siphon)

Standard Components:
  • 4:1 ARO material pump
  • Low pressure fluid regulator
  • MEKP slave assembly
  • Manual valve/nozzle
  • 25 foot hose set
  • Air/solvent purge assembly
  • Lite RTM static mixer, return valve
  • Gun rebuild kits


  • Additional hose length
  • Stroke counter
  • Pre-determined counter
  • Digital timer
  • Pneumatic X-Gun dispensing nozzle
  • Custom control box packages
RTM Lite Systems - Model LWRTM-LITE-55
RTM Lite Systems - Model LWRTM-LITE-55RTM Lite Systems - Model LWRTM-LITE-5

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