FREKOTE FMS

Harmonization Code : 3403.19 | Lubricating Preparations (With 70% or More Petroleum Oils) For Automotive and Other Uses

FREKOTE FMS

Main features

  • Composite-Mold Microporosity Sealing
  • High-Gloss Prepared Mold Surface
  • 20-Minute Final-Coat Cure at 20 deg C

Product Description

LOCTITE® FREKOTE® FMS is a clear, colorless, solvent-based polymeric mold sealer formulated for fiberglass-reinforced polyester, epoxy, and other composite molds. Applied by wiping during mold preparation, it seals microporosity and slight surface imperfections to create a uniform base for subsequent mold release-agent application. The room-temperature-curing sealer is particularly relevant for new or “green” molds and repaired areas, providing a high-gloss surface with straightforward application and a 20-minute final-coat cure at 20°C.

Key features

  • Composite mold sealing: Formulated for fiberglass-reinforced polyester, epoxy, and other composite molds.
  • Microporosity control: Seals microporosity and slight surface imperfections in new, green, or repaired molds.
  • High-gloss preparation: Produces a high-gloss mold surface and supports uniform release-agent application.
  • Wipe-on application: Applied using a clean, lint-free cotton cloth.
  • Fast room-temperature cure: Final coat cures in 20 minutes at 20°C.

Applications / Suitable for

  • Fiberglass-reinforced polyester molds
  • Epoxy and other composite molds
  • New or green molds with microporosity
  • Repaired mold surfaces and areas with slight imperfections
  • Mold preparation before applying a compatible release agent
Product Family

FREKOTE FMS

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Color
The color
Clear Liquid
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
0.757–0.771

Additional Information

Technical properties

As-supplied / before-processing properties

Documented as-supplied characteristics and application conditions for LOCTITE® FREKOTE® FMS.

Property Value Unit Method / condition
Appearance Clear, colorless — As supplied; LMS-controlled characteristic
Chemical type Solvent-based polymer — As supplied
Odor Hydrocarbon — As supplied
Specific gravity 0.757–0.771 — At 25°C; LMS-controlled characteristic
Application temperature 13–35 °C Recommended application range
Minimum time between coats 15 min Before applying the next coat
Final-coat cure time 20 min At 20°C
Technical properties

After-processing / final-state properties

Documented characteristics of the prepared mold surface after application and curing.

Property Value Unit Method / condition
Surface finish High gloss — Cured mold-sealer surface
Surface-sealing function Seals microporosity and slight surface imperfections — New, green, or repaired composite molds
Release-system preparation Uniform release-agent coating — Prepared base surface before compatible release-agent application

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