Gasket Kit Material Types & Properties: A Complete Buyer’s Guide

May 28, 2026

Gasket failure is one of the most common causes of engine leaks, machinery breakdowns, and premature equipment wear. For global machinery distributors, engine repair shops, and wholesale buyers, choosing the right gasket kit material is the key to improving equipment durability, reducing after-sales returns, and ensuring long-term stable operation.

Different gasket materials vary greatly in pressure resistance, temperature resistance, oil resistance and application scenarios. Using the wrong gasket will easily lead to oil leakage, air leakage, and even equipment shutdown. To help overseas buyers quickly screen and select qualified gasket kits for different machinery and engine models, we have sorted out a complete gasket material specification guide covering all mainstream, high-end, general and obsolete materials in the industry.

Common Gasket Kit Materials & Industry Specifications

The table below shows standard material names, professional abbreviations and official industry applications, which supports bulk procurement, model matching and product listing parameter editing.

Material	Professional Specification & Abbreviation	Industrial Application & Features
Multi-Layer Steel Gasket	MLS	Standard factory configuration for high-end heavy-duty machinery and high-pressure engines, featuring extreme pressure resistance and long service life.
Graphite Gasket	Graphite	Widely used mid-end material with balanced cost and sealing performance, suitable for most standard industrial equipment.
Metal Clad Graphite Gasket	Metal Clad Graphite	Iron sheet and graphite composite structure, cost-effective and durable, the best-selling option for general sealing replacement.
Non-Asbestos Fiber Gasket	NAF	Global eco-friendly standard material, compliant with international environmental protection regulations, universal for most civilian and industrial equipment.
Asbestos Gasket	Asbestos	Restricted material, banned for sale in the EU market. Only applicable to outdated low-end machinery, not for new equipment.
Solid Copper Gasket	Solid Copper	High-strength sealing material, specially designed for racing engines and heavy construction machinery under extreme working conditions.
Paper / Fiber Paper Gasket	Fiber Paper	Lightweight and low-cost, mainly used for low-pressure parts, side covers and non-critical sealing positions.
NBR Rubber	NBR (Nitrile Butadiene Rubber)	Professional oil-resistant material, widely used for oil seals and rubber sealing rings in general machinery.
FKM / Viton Rubber	FKM / Viton	Premium high-temperature and corrosion-resistant rubber, applied to high-end precision equipment and harsh working environments.
Cork Gasket	Cork	Traditional material for old-style valve cover gaskets, gradually phased out in modern mechanical maintenance.
Silicone Rubber	Silicone	Universal sealing material with excellent high and low temperature resistance, suitable for diversified general sealing scenarios.
Composite Fiber Gasket	Composite Fiber	Mixed fiber material with stable performance, perfectly matching the sealing needs of ordinary civilian engines.

How to Choose the Right Gasket Material for Your Equipment

Professional buyers usually select gasket kits according to equipment load and working environment. We summarize simple and practical selection rules for quick reference:

Heavy-duty & high-pressure equipment: Choose MLS multi-layer steel gaskets or solid copper gaskets for maximum durability.
Standard industrial engines: Graphite gaskets and metal clad graphite gaskets are the most cost-effective solutions.
Oil-sealing & general rubber parts: NBR rubber is the standard choice for daily maintenance and replacement.
High-temperature & corrosive environments: Upgrade to FKM/Viton rubber for long-term stable sealing.
Environmental compliance markets: Adopt NAF non-asbestos fiber gaskets to meet global green trade standards.

Final Summary

Gasket material determines the overall sealing quality and equipment service life. With this standardized material guide, buyers can quickly confirm product parameters, avoid model mismatch, and complete bulk procurement efficiently. For mechanical parts suppliers, this standard terminology also ensures consistent product listing information and smooth international trade transactions.

Contact Person :	Yu
Tel :	86 13570910096