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Start  Landing  Cometic

MLS (Multi Layer Steel)

The Cometic MLS gasket is comprised of three to five layers of Stainless Steel. Cometic uses Stainless steel for increased strength, its ability to rebound and corrosion resistance. The outer layers of the gasket are embossed and coated on both sides with a Viton rubber material designed to meet the demands of a variety of harsh sealing environments, load conditions and surface finishes. The Viton coating is heat resistant to 250C or 482F.

The center or shim layer of the gasket is comprised of an uncoated Stainless Steel layer, which can be varied to accommodate multiple thickness requirements. The MLS gasket is ideal for any kind of head and block combination. By design the MLS gasket promotes an even torque load across the sealing surface allowing for measurable reduced bore distortion.

Available thickness: .027", .030", .036", .040", .045", .051", .060", .066", .070", .075", 
.080”, .086”, .092”, .098”, .120"

MLS Gasket
MLS Gasket
 

AFM (Aluminum Foam Material)

AFM is a chemically blown, compounded nitrile synthetic rubber bonded to an aluminum core with temperature resistance of over 250F. AFM material has an 85% recovery while maintaining strong torque retention. AFM does not require gasket sealers or re-tightening.

Available thickness: .018", .032", .060"

AFM (Aluminum Foam Material)
 

CFM-20

A stainless steel core with reinforced fiber facing is ideal for head gaskets allowing heat to be drawn evenly across the gasket surface while providing maximum sealing characteristics when exposed to coolants and oils.

Available thickness: .043”, .059"

 

CFM-20
 

Spring Steel

A stainless steel core with a .001" thick coating of viton rubber on both sides.

Available thickness: .008", .010”, .012"

Spring Steel
 

Aramid Fiber

Is a premium hi-temperature, hi-density creep resistant material that requires no re-torquing and is fuel resistant. All Cometic fiber materials are asbestos free and require no additional sealants.

Available thickness: .012", .015", .020", .031", .039", .047", .060", .094", .125", .188

 

Aramid Fiber
 

Copper (Dead Soft)

Available thickness: .005", .010", .016", .020", .027", .032", .043", .050", .063", .080", .094"

Copper
 

Armor Clad

Ideal for exhaust gasket applications. Can withstand temperatures up to 2000F. Compressable to seal less than perfect sealing surfaces.

Available thickness: .042", .064"

Armor Clad
 

Aluminum

Solid material ideal for spacers and shims.

Available thickness: .010”, .016”, .020”, .025”, .032”, .040”, .050”, .063”, .080”, .100”, 125”, .188”, .250”, .313”, .375”, .500”

Aluminum
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Powersports

Cometic’s line of powersports gaskets are sold both as kits and on an individual component basis. Gasket kits are broken down into three categories: EST Top End Kits (for 4-Stroke applications), 2-Stroke Top End Kits and 2 & 4-Stroke Bottom End Kits.

Today's lightweight engines are producing more horsepower, higher cylinder pressure, clamp load and extreme temperatures. Our commitment is to provide innovative, quality gaskets while maximizing your engine’s power and performance. Cometic’s gaskets are proudly made in the USA with materials manufactured on American soil. We are constantly updating and adding models to our ever growing library of gaskets.


Gasket Terminology and Materials

EST Top End Kits

EST Top End Kits

Fits 4-Stroke applications and are supplied with the necessary gaskets for a top- end build. See your specific model application for a detailed component listing. Valve cover gaskets are sold separately.

 


2-stroke Top End Kits

2-Stroke Top End Kits

Fits 2-Stroke applications and are supplied with the necessary gaskets for a top- end build. See your specific model application for a detailed component listing.

 


Bottom End Kits

Bottom End Kits

Fits 2-Stroke and 4-Stroke applications and are supplied with the necessary gaskets for a bottom end build. See your specific model application for a detailed component listing.

 


Components and Extras

Components & Extras

Hi-Compression head &base gaskets are available for select models as an accessory. See your specific model application for a detailed component listing. Components can be ordered separately and in five packs.

 


MLS Gasket
MLS Gasket

MLS (Multi-Layer Steel Head Gaskets

Provides maximum sealing performance for today’s high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flouroelastomer rubber based material that is heat resistant to 250 C/ 482 F. Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements.

 


LCE

LCE (Load Control Embossments)

LCE refers to a specific embossment design available on some MLS head gaskets. This embossment design requires less clamp load creating less bore distortion and conforms load distribution across the sealing area.


3 Layer LCE Cross Section
 


AFM

AFM Gasket Material

Commonly used in oil pump, clutch cover, ignition cover, etc. AFM is the ideal gasket material for machined surfaces, especially two uneven stamped surfaces that have been plated. AFM is a chemically blown, compounded nitrile synthetic rubber bonded to an aluminum core. It has a temperature resistance of over 250°F. AFM has an 85% recovery while maintaining a strong torque retention. No gaskets sealants or silicon bead is required. Re-torque is also not required.

 


Spring Steel

Spring Steel

Our spring steel has a stainless core with .001” thick coating of FRM rubber on both sides. Ideal for machined surfaces including timing covers and rear end housings, and base gaskets.

 


Valve Stem Seals

Valve Stem Seals

Hi temperature flouroviton with Teflon to prolong valve stem life.

 


Armor Clad

Armor Clad

An ideal exhaust flange material that withstand temperatures up to 1800°F. Armor Clad retains torque and compresses to seal less than perfect surfaces. Armor Clad is available in the following thicknesses: .042” and .064”.

 

Automotive

Individual gaskets and gasket kits are available for both the Domestic and Import Automotive Markets. The Performance Gasket Line gives you options in: head gasket bore size and shape, gasket thickness,and custom water passages and pocket dimension solutions. Valve Cover and MLS Exhaust gaskets are also a part of the Performance Gasket Line.

The StreetPro Gasket Line is a product line of Cometic Gasket manufactured by Cometic. StreetPro is geared toward the street-rodder who is looking to purchase a kit with all necessary gaskets and seals needed for a rebuild. StreetPro gasket kits are sold as a top end kits and bottom end kits. Purchase both top- and bottom-end kits for a total engine rebuild. Quality gasket materials are a priority in StreetPro kits. Kits materials include: MLS, AFM, Aramid Fiber, and Armor Clad.

>Today's lightweight engines are producing more horsepower, higher cylinder pressure, clamp load and extreme temperatures. Our commitment is to provide innovative, quality gaskets while maximizing your engine’s power and performance.Our gaskets are proudly made in the U.S.A.with materials manufactured on American soil. Cometic Gasket, Inc., is an exclusive NASCAR Performance® Product.


Gasket Terminology and Materials

 

StreetPro

StreetPro

Is a product line of Cometic Gasket manufactured by Cometic Gasket.StreetPro is geared toward the street-rodder who is looking to purchase a kit with all necessary gaskets and seals needed for your rebuild

 


MLS Exhaust Gasket

MLS (Multi-Layer Steel) Exhaust Gaskets

Are designed for extreme cylinder pressures. MLS Exhaust Manifold Gaskets maintain a torque set and resist corrosion. They will not burn through or push out. MLS Exhaust Manifold Gaskets withstand different combinations of cylinder head and exhaust manifold materials. No sealants are required.

 


Valve Cover Gasket

Valve Cover Gasket

Are manufactured from a soft durometer rubber wrapped around a steel torque limiting frame. Our valve cover gaskets offer unparalleled sealing and extended reusability. This design surpasses the quality and ability of a typical cork or paper gasket. The rubber and steel combination will withstand blowing out, over tightening, and high amounts of vacuum at an affordable price.

 


MLS Gasket
MLS Gasket

MLS (Multi-Layer Steel) Head Gaskets

Provide maximum sealing performance for today’s high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flouroelastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements.

 


LCE

LCE (Load Control Embossments)

LCE refers to a specific embossment design available on some MLS head gaskets. This embossment design requires less clamp load creating less bore distortion and conforms load distribution across the sealing area.


3 Layer LCE Cross Section
 


MLX

MLX (Multi-Layer Stopper)

Utilizes an integrated stopper layer for combustion chamber sealing and improved clamp load around the cylinder without increasing bore distortion. MLX technology can be found in some head gaskets and are made from the same materials as our MLS Head Gaskets. No sealants or re-torque required.



3 Layer MLX Cross Section
4 Layer MLX Cross Section
 


 

 

StreetPro

The StreetPro Gasket Line caters to the budget-minded street-rodder who is looking to purchase a kit with all necessary gaskets and seals needed for their rebuild. StreetPro gasket kits are sold as a top-end kits and bottom-end kits. Purchase both top- and bottom-end kits for a total engine rebuild. Quality gasket materials are a priority in StreetPro kits. Kit materials include: MLS, AFM, Aramid Fiber, and Armor Clad.

Check out Cometic’s Automotive Line of gaskets for individual and custom gaskets including Valve Cover, MLS Exhaust and MLS Head Gaskets with a variety of bore and thickness sizes.