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SILRES® KX is a medium-molecular-weight methyl silicone resin that is supplied as a 50 wt.% solution in xylene. Its primary application is as a binder for highly heat-resistant coatings. SILRES® KX can be used effectively as a binder for various types of coatings. It offers exceptional heat resistance and weatherability, and when applied, it dries without being tacky. The resin can also undergo heat curing, further enhancing its performance. SILRES® KX is particularly well-suited for highly-filled coatings, allowing for the incorporation of a high level of fillers while maintaining excellent properties and durability.

Chemical Family: Silicones

Compatible Substrates & Surfaces: Metal

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
CASE Ingredients Functions
Technologies

Features & Benefits

Applications & Uses

Compatible Substrates & Surfaces
Cure Method
Applications
  • Heat-Resistant Coatings
  • Industrial Coatings
Application Details

SILRES® KX may be used as a binder for coatings. It combines outstanding heat resistance and weatherability.

  • Heat-Resistant Coatings
    • SILRES® KX is suitable for all kinds of heat-resistant paints. It is an excellent choice for (anti-corrosion) coatings on fireplaces, mufflers, exhaust systems, engine parts, boilers, furnaces, ovens and oven inserts, chimneys, barbeques, electric/gas heaters, incinerators.
    • High-heat resistant coating formulations with SILRES® KX in combination with suitable temperature stable pigments and fillers can achieve thermal stability up to 600°C (1100°F) . Aluminum pigments can be used for silver/gray colors and black pigments like iron managnese oxides or copper chromite black spinels for dark black coatings. Platelet-shaped inorganic fillers/extenders like mica or talc are suitable for such formulations.
    • The pigments and fillers must be properly dispersed in the paint. Degreasing/Cleaning and sandblasting of the substrate are recommended for obtaining optimum corrosion resistance and heat stability on metal surfaces. The adhesion will always depend on the specific coating formulation, too. Coating application can be done by spraying, dipping and brushing.
    • Coatings made with SILRES® KX dry at room temperature to tack-free films which already provide temporary corrosion protection. Such coating films are not resistant to solvents, however, and have to be heat-cured above 150°C. We propose 250°C/1h as a guideline for aluminum-pigmented coating forumlations to develop optimum mechanical properties and resistance to solvents.

Properties

Physical Form
Appearance
Clear colorless to slightly yellow solution
Typical Properties
ValueUnitsTest Method / Conditions
Density (at 20°C)1.05g/cm³DIN 51757
Flash Point24°CDIN 51755
Ignition Temperature465°CDIN 51794
Kinematic Viscosity (at 25°C)6.0 - 12.0 mm²/sDIN 51562
Solids Content (at 200°C, 1 hour)approx. 50wt %
Properties

SILRES® KX offers the following properties:

  • Good balance of flexibility, hardness, heat resistance and curing speed
  • Low viscosity
  • Air-drying
  • Limited compatibility (preferably used as a sole binder, compatibility typically exists only with other methyl silicone resins)
  • Excellent hydrophobicity and corrosion-protection

Packaging & Availability

Country Availability
Regional Availability
  • Africa
  • Asia
  • Europe
  • Latin America
  • Middle East
  • North America
  • Oceania
Packaging Information
  • 25 kg steel can
  • 200 kg steel drum
  • 950 kg IBC

Storage & Handling

Storage Information
  • SILRES® KX must be stored in tightly closed original containers with exclusion of moisture. Contact with tin (e.g. with improper metal containers) or moisture will cause gelation.
  • Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.