LIGHT RESIN TRANSFER MOLDING (LRTM)

CLOSED MOLD LAMINATING PROCESS

UTILIZING COORDINATED “A-SIDE” AND “B-SIDE” MOLDS TO CREATE PARTS WITH LESS WASTE AND BETTER “B-SIDE” COSMETICS

Light RTM, a closed mold process, utilizes coordinating molds comprised of a rigid “A-side” mold, the base, and a lightweight rigid “B-side” mold that fits inside or on top of the A-side mold. Prior to affixing the two molds together, a pre-sized, cut and formed continuous strand glass mat, woven glass mat or Carbon fiber reinforcement is dry-loaded into the base mold. Rather than use pressure, RTM Light uses a vacuum, which pulls the catalyzed resin through the mold cavity, saturating the fiberglass reinforcement to create a part with consistent thickness, a smooth B-side surface, and controlled fiber/resin ratios. Relative to other Closed Mold Processes, Light RTM offers lower tooling costs.

Goldshield also offers a variation of LRTM, utilizing a pre-formed flexible Silicon B-side Bag Mold in lieu of the lightweight rigid B-side mold. This process favors lower volume complex geometry components, parts requiring B-side reinforcements, and reduces initial tooling investment, yet provides similar product characteristics as above.

Utilize Light RTM when your Fiberglass Reinforced Part requires:

  • A strong, yet lightweight structure
  • Durability and weight resistance
  • Smooth "B-side" appearance

Choosing the Light RTM Process

Benefits of LRTM vs. Open Mold laminating, include: less waste/scrap and cosmetic “B-side” surfaces. The LRTM laminating process is commonly used in the transportation, recreation, and agricultural markets.

Whether you’re utilizing the standard LRTM process or the flexible B-side Bag Mold, if a cosmetic A-surface is required, a gel coat layer can be pre-applied to the base mold prior to loading the fiber or glass reinforcement mat.

Production Mold Tooling Services

Goldshield’s program management team will analyze client’s product specifications, part manufacturability, program budget, and annualized volume requirements to establish a mold tooling and production fixture plan/package. To support clients from concept to reality, Goldshield will assist in coordinating the design and pattern develop phases of the mold tooling project prior to leading the building and validation of the production molds and fixtures. This process has proven to deliver quality FRP composite molds ready for full-scale production.

Numerous Market Applications

Because of its relatively low-costs, design flexibility, B-side cosmetics and environmental durability, Light Resin Transfer Molding is used throughout a variety of market sectors, including agriculture, recreation, transportation, and construction.

OTHER GOLDSHIELD FIBERGLASS SOLUTIONS

MANUFACTURING DONE RIGHT

From the employees behind the scenes, to the high-quality manufacturing processes we put in place, and the value-added services we provide to make your components a reality, Goldshield is committed to perfecting the way molded fiberglass manufacturing is done.

LEARN MORE ABOUT THE WAY WE MANUFACTURE

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CONTACT US

To begin work on your molded fiberglass project, visit our Contact Us page to send us a message. We’re standing by to deliver you with accurate, reliable, and repeatable FRP parts.