Ceramic Coatings

Ceramic coating is a thermally sprayed layer of oxide ceramic, such as chrome oxide or aluminium oxide, applied to a metal part to give it a hard, wear-resistant, chemically inert and electrically insulating surface. Ultraweld Coat applies and finishes ceramic coatings in Pune for sleeves, rollers and seal areas.

One of the well-known Ceramic Coatings Service Providers in Pune is Ultraweld Coat. We tailor our services to meet the needs of our clients. As a leading Ceramic Coatings Service Providers, we are offering you ceramic coated rollers of superior quality, suitable for a range of industrial applications.

This device has a ceramic coating on it, making it more suitable for lowering large weights. The quality of our products has been improved. crafted to order in accordance with client requirements. Find the best Ceramic Coatings Services, at Ultraweld Coat Pvt. Ltd. in Pune.

Properties of Ceramic Coatings :

High Hardness: Provides a tough, durable surface that resists scratches and wear.
Corrosion Protection: Shields materials from rust and corrosion, especially in harsh environments.

Electrical Insulation: Provides excellent electrical insulation properties, useful in various electrical and electronic applications.
Improved Aesthetics: Enhances the appearance of coated surfaces with a smooth, polished finish.

Potential Benefits :

Reduced Friction

The smooth surface of ceramic coatings reduces friction, which can improve the efficiency and performance of machinery.

Chemical Resistance

These coatings are resistant to a wide range of chemicals, protecting equipment from chemical damage and corrosion.

High Temperature Resistance

They can withstand extreme temperatures without degrading, making them ideal for high-heat applications.

What are ceramic coatings?

Industrial ceramic coatings are layers of oxide ceramic, such as chrome oxide, aluminium oxide or alumina titania, applied to a metal part by thermal spraying. The ceramic is melted in the spray stream and builds up on the prepared surface as a hard, chemically inert layer that also insulates electrically. The part itself stays cool during spraying, so it does not distort.

Ceramic coating materials

Material	Best at	Keep in mind
Chrome oxide	Sliding wear, corrosion resistance and low friction against seals and packing	Not suited to sharp thermal shock
Aluminium oxide	Electrical insulation combined with wear resistance	More brittle than alumina titania
Alumina titania	Toughness and a fine surface finish for thread and wire guides	Lower electrical resistance than pure alumina

Where ceramic coatings are used

Pump sleeves, shaft seal areas and oil flingers
Rollers and idler pulleys for textile, wire drawing and polymer film lines
Furnace rolls and other parts working at high temperature
Components that must be electrically insulated from the machine
See also our ceramic coated metal sleeves

How a ceramic coating is applied

Preparation: the surface is cleaned and grit blasted so the coating can key to it.
Spraying: the ceramic is thermally sprayed to the specified thickness, over a bond coat where the application calls for one.
Sealing: sprayed ceramics contain fine porosity, so coatings for corrosive service can be sealed.
Finishing: the coating is ground, and polished or lapped where a fine finish is required.

Ceramic or carbide coating?

Ceramic coatings are the usual choice for sliding wear, chemical resistance, electrical insulation and low friction. Where a part also faces impact, particle erosion or heavy loads, a carbide coating applied by HVOF is tougher and better bonded. Tell us the wear mechanism and operating conditions and we will suggest the suitable route.

Frequently asked questions

How thick is a ceramic coating?

The thickness of a ceramic coating is set by the application. Thermally sprayed ceramic layers are typically a fraction of a millimetre thick after grinding. Thicker is not always better: a thin, well-bonded layer resists cracking from thermal expansion better than a heavy build-up.

Which metals can be ceramic coated?

Most engineering metals can be ceramic coated, including carbon steel, alloy steel, stainless steel and aluminium alloys. The surface is cleaned and grit blasted first so the coating keys to it, and a metallic bond coat is used where the application needs extra adhesion.

Do ceramic coatings withstand high temperature?

Yes. Oxide ceramics such as aluminium oxide and chrome oxide remain stable at high temperature. In practice the limit is usually set by the base metal and bond coat, and by the difference in thermal expansion between metal and ceramic, which can crack the coating under rapid temperature changes.

Last updated: 5 October 2026

Ceramic Coatings