FREKOTE FMS-100
Harmonization Code : 3403.19 | Lubricating Preparations (With 70% or More Petroleum Oils) For Automotive and Other Uses

Main features
- Room-Temperature Mold-Sealer Cure
- Microporosity-Sealing Mold Preparation
- High-Gloss Release-Ready Surface
Product Description
LOCTITE® FREKOTE® FMS-100 is a clear, colorless, solvent-based polymeric mold sealer formulated for fiberglass-reinforced polyester, epoxy, and other composite mold surfaces. It is particularly suited to new or “green” molds with microporosity, repaired areas, and other slight surface imperfections. Applied by wiping, the room-temperature-curing sealer forms a smooth, high-gloss surface before application of a compatible mold release agent. New molds typically require one or two coats, with a minimum 15-minute interval between coats and a 20-minute final-coat cure at 20°C.
Key features
- Composite mold sealing: Formulated for fiberglass-reinforced polyester, epoxy, and other composite mold surfaces.
- Microporosity treatment: Seals microporosity and slight surface imperfections in new, green, or repaired molds.
- High-gloss surface: Produces a smooth, high-gloss prepared mold surface.
- Wipe-on application: Applied using a clean, lint-free cotton cloth.
- High cured thermal stability: The cured sealer is documented as thermally stable at temperatures up to 400°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 surface imperfections
- Mold preparation before application of a compatible release agent
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Thermal Properties
Additional Information
As-supplied / before-processing properties
Documented as-supplied characteristics and application conditions for LOCTITE® FREKOTE® FMS-100.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Appearance | Clear, colorless | — | As supplied; LMS-controlled characteristic |
| Chemical type | Solvent-based polymer | — | As supplied |
| Odor | Solvent | — | As supplied |
| Specific gravity | 0.733–0.753 | — | At 25°C; LMS-controlled characteristic |
| Cure mechanism | Room-temperature cure | — | Applied mold sealer |
| Application temperature | 13–41 | °C | Recommended mold-sealer application range |
| Minimum time between coats | 15 | min | Before application of the next coat |
| Final-coat cure time | 20 | min | At 20°C |
After-processing / final-state properties
Documented characteristics of the mold surface after application and curing of LOCTITE® FREKOTE® FMS-100.
| 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 mold surfaces |
| Cured thermal stability | ≤400 | °C | Cured mold sealer; documented thermal-stability value |





















