Thermally Conductive Alumina and Zinc Oxide

SILATHERM® alumina and zinc oxides grades are used to increase the thermal conductivity of polymers. With these products the quick and cost effective manufacturing process of injection moulding can be used to produce polymer parts with good levels of thermal management. Typically these materials are being used in the automotive sector however electronics and consumer items are also increasing their demand for polymers that can conduct heat away from various thermal sources. Crucial to the success of alumina and zinc oxide are applications where thermal conductivity and electrical insulation are needed in combination. Traditional metal based powders are not able to offer both of these advantages together.

SILATHERM® products come in a range of particle sizes and with optional surface treatments that allow higher filler loadings to be combined with improved mechanical properties (over untreated versions). Get in touch with Lawrence Industries today to discuss your project with one of our technical sales team.



    • Thermally conductive alumina for thermoset applications.

    • Softer, thermally conductive, zinc oxide for thermoplastics.

    • A range of particle sizes and surface treatments available.

    • Chemically inert.


    • Thermal conductivities in the range of 14-30 W/mK.

    • Electrically insualting.

    • Surface treatments allow for higher loadings to be attained/lower viscosity build and offer improved mechanical properties of the composite.

    • Comparatively cost effective way of imparting thermal conductivity to polymers.

    • Easy to colour the composite afterwards.

Typical Applications

    • Electric motor housings.

    • Micro processors.

    • Injection moulded parts (include at compound stage).

    • Adhesives and sealants.

    • Silicone rubber.

Related brochures & technical literature

You will find some of the key product brochures available for download below. There are more brochures available upon request. If you would like to discuss your enquiry further then please get in contact by phone or by filling in the "Request a Callback" form at the top of the page. Someone from the technical sales team will then call you within 24 hours, to discuss your project further.


A quick introduction to the features and benefits of SILATHERM® aluminas and zinc oxides, for compounding thermally conductive thermoplastics and thermosets.

SILATHERM® Overview Brochure /




SILATHERM® for Improvement of the Thermal Conductivity of Thermoplastic Compounds

An overview of the SILATHERM® product range with thermal conductivity performance related data in different polymer systems.

SILATHERM® for Improvement of the Thermal Conductivity of Thermoplastic Compounds Brochure /