What is a non-asbestos gasket?

Non-asbestos gasket sheets are made using organic fibers, aramid fibers, NBR and mineral fibers. These can be used for application where water or oil resistance is required. Generally, non-asbestos gasket sheets are used in low-pressure apparatus, transformers, and compressors.

What will replace asbestos gaskets?

Manufacturers found that other compressed, resilient fibers such as Kevlar and graphite were a safe and effective replacement to asbestos gaskets. Two of the most common brands for non-asbestos gaskets, ones you’ll often see on the shop floor of Breiner Non-Metallics, are Thermoseal (Klinger) and Garlock.

What material can I make a gasket with?

Because it is readily available, and has such a wide range of properties, silicone is the most commonly used material for FIP gasket production.

What is non asbestos gasket made of?

Non-Asbestos Gasket Materials Non-asbestos fibres include aramid, Kevlar and fibreglass. Aramid is often used for its excellent heat resistance and strength. The natural material is up to five times stronger than steel and twice the strength of glass fibre or nylon.

What is the difference between asbestos and non asbestos?

Asbestos are used in gasket because it can with stand high pressure ,High Temperature&its chemically inert in nature. Non asbestos gasket are made from man made fiber like carbon fiber, aramid fiber, synthetic fiber with NBR binder which insure pressure resistance, temperature resistance, chemical resistance.

What are fiber gaskets made of?

Some fibre gaskets are made from cellulose, which can be further impregnated with rubber, insulating fibre, synthetic fibre, or vulcanized fibre. Others, however, can be made from either vegetable fibre or aramid.

What are compressed non-asbestos gaskets?

These compressed non-asbestos gaskets provide excellent ability to seal, torque retention, and heat resistance that eliminates the need for asbestos. Gaskets manufactured from compressed non-asbestos materials are designed to perform in applications involving, air, water, steam, oils, acids and general chemicals.

What is the best non-asbestos gasket substitute?

The first company to come out with a quality non-asbestos substitute and to market it well was Garlock. At the time Garlock was the number two seller of compressed asbestos gasket material (number 3 was Durabla Manufacturing).

Is asbestos in a rubber gasket dangerous?

The asbestos in asbestos gasket material was embedded in the rubber it was blended with so, unless you took a grinder to the material to separate the asbestos out and then breathed in the asbestos (which could be avoided by oiling or wetting the material first), it was not going to hurt you.

What are compressed gaskets made of?

Durlon ® compressed gaskets are advanced in both quality and performance. The compressed sheets are made from unique ingredients and advanced proprietary manufacturing processes. They are high-density products containing the most homogenous combination of minerals, synthetic fibers, and elastomers available.

What is a non asbestos gasket?

Is gasket made of asbestos?

Sheet gasket material commonly contained up to 70% to 80% chrysotile asbestos. Gaskets designed for acidic environments often contained a more dangerous form of asbestos called crocidolite, which is also known as blue asbestos. The fiber filler in spiral wound gaskets was often almost completely pure asbestos.

What is a Cnaf gasket?

NAF or CNAF Gaskets (Compressed Non-Asbestos Fibre) are used widely throughout a range of industries to seal flanges and joints. Asbestos used to be the material of choice for gaskets used in many industries including ships, boilers, refineries and engines.

What is the best head gasket material?

Copper gaskets are extremely durable which makes them perfect for high performance engines. Copper transfers heat evenly throughout the entire gasket, and this reduces the effects of warping. Copper is also good at conforming to rougher, damaged surfaces for a complete seal.

When did asbestos gaskets stop?

In July 1989, the U.S. Environmental Protection Agency (EPA) prohibited the manufacture, importation, processing, and distribution in commerce of most asbestos gaskets by 1994. EPA’s decision to ban asbestos gaskets was based solely on exposure data obtained from the gasket manufacturers.

Why is asbestos used in gaskets?

Why Was Asbestos Used in Gaskets? The properties of asbestos made it a useful component in the production of gaskets. Asbestos is chemical- and heat-resistant, as well as nonconductive and noncorrosive. Gaskets create a seal between pipes and other machinery components to avoid leaks.

What is a EPDM gasket?

Description: Ethylene Propylene Diene Monomer (EPDM): Gaskets EPDM is a black plate finish sheet with superior resistance to weathering, ozone and UV exposure. EPDM gaskets provide excellent chemical resistance*, and good electrical properties.

Is graphite head gasket better?

Graphite, for example, is often less expensive than an MLS gasket, and due to their newness and unforgiving nature, it could be difficult to retrofit an engine to accommodate an MLS gasket. Similarly, graphite is much more forgiving, and can seal on a rougher surface due to the ease with which they can be compressed.

Are graphite head gaskets good?

Graphite Gaskets They have excellent compressibility, can withstand high temperatures, and won’t creep, cold-flow, or become brittle. Graphite coatings allow for gasket movement without damage.

Are compressed non-asbestos gaskets safe to use?

However, as we know now asbestos is not considered a safe material for use because of the damage its dust and fibers can have on human health. Once the hazards of asbestos became widespread common knowledge, a replacement was sought out. That is when compressed non-asbestos gaskets burst on to the scene.

What is the maximum temperature for a non asbestos gasket?

It is rated for temperatures up to 750°F. Ultra High Temp Compressed Non-Asbestos Sheet (gray): is a high temperature compressed carbon fiber non-asbestos gasket material. It is ideal for steam applications, water, fuels, lubricant alkalis and weak acids under high temperature and pressure.

Does American seal&packing sell asbestos gasket material?

Today, very few distributors in the USA will carry it (including this one) most will only sell non-asbestos gasket materials. American Seal & Packing has never sold any asbestos product and only sells non-asbestos compressed gasket materials. Below are some of the other brands we offer.

What is premium compressed non-asbestos?

Premium Compressed Non-Asbestos NBR based sheet (blue): is a premium grade non-asbestos gasket material manufactured with synthetic fibers and NBR binders. It is recommended for more severe applications in sealing oils, solvents, fuels, mild acids and alkalis, and general services conditions. It is rated for temperatures up to 750°F.