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

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
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Additional Information
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 |
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 |





















