FREKOTE R-120

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

FREKOTE R-120

Main features

  • Semi-Permanent Rubber-Mold Release Coating
  • 4-Minute 150 deg C Cure
  • Multiple Releases with Low Transfer

Product Description

LOCTITE® FREKOTE® R-120 is a one-part, water-based, semi-permanent release agent for rubber molding. Applied as a finely atomized spray to a preheated mold, it chemically bonds to the surface and forms a thin, inert, thermally stable release coating. The product supports natural and synthetic rubber polymers, including some thermoplastic urethanes, across mold application temperatures from 60°C to 200°C. It is intended for demanding molding processes where minimal mold buildup and low transfer to the molded part are required.

Key features

  • Water-based formulation: Supplied as a translucent, non-flammable emulsion with mild odor.
  • Semi-permanent release coating: Chemically bonds to a preheated mold surface to support multiple releases.
  • Broad application-temperature range: Suitable for mold temperatures from 60°C to 200°C.
  • Fast heat cure: Full cure time decreases as mold temperature increases, reaching 4 minutes at 150°C.
  • Controlled mold condition: Recommended where minimal mold buildup and low transfer to molded parts are required.

Applications / Suitable for

  • Natural and synthetic rubber molding
  • Some thermoplastic urethane molding applications
  • Demanding molding processes requiring minimal mold buildup
  • Preheated molds operating from 60°C to 200°C
Product Family

FREKOTE R-120

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Color
The color
Translucent emulsion
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.
0.98–1.02
Thermal Properties
Temperature Resistance
Temperature resistance is the maximum temperature that the material or product can withstand for a period of time. The temperatures listed should be considered as guidelines for an operating temperature of about 30 minutes. Typically, the material can withstand much longer times at temperatures about 20°C lower and can withstand much higher temperatures for short, intermittent times.
315 ˚C

Additional Information

Technical properties

As-supplied / before-processing properties

Documented as-supplied characteristics and application conditions for LOCTITE® FREKOTE® R-120.

Property Value Unit Method / condition
Appearance Translucent emulsion — As supplied; LMS-controlled characteristic
Chemical type Water-based emulsion — One-part semi-permanent release agent
Odor Mild — As supplied
Specific gravity 0.98–1.02 — At 25°C
pH 3.9–4.1 — LMS-controlled characteristic
Application temperature 60–200 °C Preheated mold surface
Full cure time 25 / 10 / 4 min At 60°C / 93°C / 150°C, respectively
Optimal storage temperature 8–21 °C Unopened container in a dry location
Technical properties

After-processing / final-state properties

Documented characteristics of the heat-cured LOCTITE® FREKOTE® R-120 release coating.

Property Value Unit Method / condition
Cured thermal stability ≤315 °C Heat-cured release coating
Release-film form Thin, inert coating — Chemically bonded to a properly prepared, preheated mold surface
Epoxy release test ≥4 — LMS-controlled cured-material test
Finish reflection Matte — Henkel product-page technical specification

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