A gasket is an essential component in the internal combustion engine (ICE) as it’s used to seal two or more surfaces together thus preventing air and liquid leakage. Between the engine block and the cylinder head, the head gasket is the primary sealing component. It not only seals but also transmits forces across the head-block interface, having a significant impact on the total force distribution in the engine system.
A gasket is a shaped ring or piece of material used to seal the space/joint between two surfaces. The fundamental purpose of an engine head gasket is to maintain the engine’s compression pressure by preventing combustion air-fuel mix from leaking out of the cylinders. A suitable gasket should be built of a material that can withstand high temperatures and pressures.
Engine head gaskets can be produced from a variety of materials. While steel is the most frequently used material for head gaskets, other materials such as copper, rubber, silicone, felt, nitrile, fibreglass, and Teflon can also be used. Head gaskets prevent combustion gases, lubricating oil, and coolant leaks. Combustion gases produced in the engine may leak into the car’s cooling system if a head gasket is broken, improperly installed or otherwise damaged, causing the vehicle to overheat.
Coolant and oil may enter each other’s circuits as a result of a burst head gasket. When this happens, neither the lubricating nor the cooling systems will function properly, leading the engine to degrade rapidly. That’s why head gasket material is one of the most essential and researched topics by the buyer’s requests and performance requirements. The following is a list of the most popular head gasket types available for purchase:
Carbon Head Gaskets
Carbon is a good conductor of heat, which helps in dissipating heat away from the combustion chamber. Carbon gaskets can tolerate extended exposure to high temperatures, making them ideal for use in engines boosted by nitrous oxide, turbochargers or blowers. They adapt more easily to reground block and head faces compared to metal gaskets, hence are sometimes preferred by overhaul mechanics to replace OEM gaskets.
Composite Head Gaskets
When compared to other materials, composites are more adaptable. They are mostly constructed of asbestos-free fibre or carbon (graphite). They are resistant to corrosion caused by coolants, alcohol, and oil, among other things.
Composite gaskets are considered old generation gaskets and are not as common as other gaskets in modern engines since they are more prone to blowouts.
MLS or Multi-Layered Steel Head Gaskets
These are more modern gaskets that are built to withstand higher temperatures and compression ratios. The gaskets are usually made up of three steel layers. Viton or another rubber compound is used to coat the contact side.
Steel’s strength and flexibility prevent the gasket from being easily distorted, resulting in better performance even under extreme conditions.
Graphite Sandwich Gaskets
A corrosion-resistant, radiation-resistant, and multifunctional gasket is created by mechanically bonding perforated metal sheets, typically steel, to flexible graphite sheets on both sides.
They’re highly compressible, resist extreme temperatures, and won’t creep, cold-flow, or grow brittle. Gasket movement is possible without damage, thanks to graphite coatings. These coatings also help prevent the gasket from clinging to heated surfaces.
Dead-Soft Aluminum Gaskets
On uneven, deformed, or irregular flange surfaces, dead-soft aluminium gaskets are exceptionally malleable and offer a great seal. Can reuse them due to their multiple-layer, solid aluminium design, which is extremely resistant to blowout and burnout.
Copper gaskets are ideal for high-performance automotive and industrial applications because they combine the malleability and high heat conductivity of copper with the strength of fibre composite layers. They can seal even if the head/block interface has a rough surface finish, but they require additional grooves to accept O-rings.
For maximum protection and longevity, high-quality gaskets are essential. When a gasket fails, the surfaces it is supposed to seal can suffer catastrophic consequences. A blown head gasket in a car can cost a lot of money in engine damage. Regardless of the type of head gasket you require, Garima Global, through its AutoGRACE® brand, manufactures engine head gaskets that will meet the highest technical standards.
The brands for which we manufacture and export engine gaskets are Caterpillar, Chevrolet, Chrysler, Citroen, Cummins, Daewoo, DAF, Daihatsu, Detroit Diesel, Deutz, Fiat, Ford, Hino, Honda, Hyundai, International, Isuzu, Iveco, John Deere, Kamaz, Kia, Komatsu, Kubota, Land Rover, Leyland, Lister Petter, Lombardini, Mack, Mahindra, MAN, Massey Ferguson, Mazda, Mercedes Benz, Mitsubishi, Navistar, Nissan, Onan, Perkins, Peugeot, Renault, Scania, Suzuki, Tata, Tatra, Toyota, Ursus, UTB, Volvo, Yanmar and Zetor, amongst others.
For vehicle models manufactured in India by Maruti Suzuki, Hyundai, Mahindra, Tata, Renault, Ford, Toyota, Nissan, Chevrolet and other well-known brands, we can supply a bumper-to-bumper range of parts in both genuine and aftermarket brands.
Garima Global supplies components for a wide variety of on-road, off-road, industrial and stationary applications such as: automotive (light duty) and light commercial, trucks (heavy duty), tractors (agricultural), earthmoving and construction machinery, generators, irrigation pumps, and defence / special purpose vehicles. We have developed components for these applications in close coordination with our customers. Our products have been tried and tested in the most demanding and quality conscious global markets.