Heat Seal Coatings

Michem® Flex HS-series heat seal coatings are water-based, often primerless, and balance low initiation temperatures with high ultimate bond strength. Owing to our continuous innovation of the product line, a broad range of products are available to suit various application requirements.

Additives & Modifiers for Heat Seal Coatings Available Form % Non-Volatile Emulsifier Charge metal Substrate - paper

Michem® Prime 4983R

(Copolymer dispersion)

Provides outstanding adhesion to both metallic and cellulosic substrates, and enhances the water, grease, oil and solvent resistance of coatings and adhesives. Can serve as a tie coat or primer for extrusion coatings, a foil laminate, a specialty paper coating, a paper sizing agent, a heat sealable coating, nonwoven binder and can also be used as a thermally active binder in thermal transfer release coatings.

Specialty Dispersion 24.2 - 25.4 N/A

Michem® Prime 4990R

(Copolymer dispersion)

Provides outstanding adhesion to both metallic and cellulosic substrates, and enhances the water, grease, oil and solvent resistance of coatings and adhesives. Can serve as a tie coat or primer for extrusion coatings, a foil laminate, a specialty paper coating, a paper sizing agent, a heat sealable coating, nonwoven binder and can also be used as a thermally active binder in thermal transfer release coatings.

Specialty Dispersion 32.0 - 35.0 Ammoniated dispersion
Formulated Coatings for Heat Seal Coatings metal Substrate - film Substrate - paper

Michem® Flex 1306

(Water based heat seal coating)

A low COF, heat seal coating suitable for application to paper or aluminum/paper laminated structures. Having a low COF makes this grade particularly suitable for use in high speed VFFS applications.

 

Michem® Flex 4915

(Water-based heat seal coating for foil and paper)

A general purpose A-A heat seal coating for sealing aluminum foil or paper to itself.

 

Michem® Flex HS185

(Water-based heat seal coating for plastic flexible packaging)

A low temperature heat seal coating for plastic films for flexible packaging applications.

   

Michem® Flex HS268

(Water-based heat seal coating for flexible packaging)

Used for heat sealing applications offering low temperature seal initiation and stronger bonds to paper, metal (foil or metalized surface), various primed films such as matte, pearlized cavitated BOPP or BOPET films. It should be used with the addition of a wax emulsion to control the coefficient of friction (typically 2 to 4% by weight) e.g. Michem® Lube 160 RPH.

Michem® Flex HS777

(Water-based heat seal coating for use in flexible packaging)

Provides excellent adhesion to paper and is heat sealable to polyolefins and paper. This coating is primarily used in medical device packaging.

   

Michem® Flex HS9010

(Water-based heat seal coating for heat-sensitive goods and high-speed packaging lines.)

A water-based heat seal coating designed for heat sealing with a variety of substrates over a wide temperature range. It is excellent for sealing through contamination and ideal for horizontal and vertical form fill seal applications that require high speeds, have temperature sensitive products, or have products that can contaminate seal areas.

Michem® Flex HS9020

(Water-based heat seal coating for heat-sensitive and high-speed packaging lines)

A water-based heat seal coating designed for heat sealing with a variety of substrates over a wide temperature range. It is excellent for sealing through contamination and ideal for horizontal and vertical form fill seal applications that require high speeds, have temperature sensitive products, or have products that can contaminate seal areas. Michem® Flex HS9020 has a low seal initiation temperature for improved hot tack performance.

Michem® Flex P1853R

(Water-based primer and heat seal coating for extrusion coated resins and treated film substrates)

A water-based primer designed for a variety of substrates used in multiple applications including extrusion lamination, extrusion coating, and applying other functional coatings such as PVDC, acrylics, etc. It is designed for high-abuse applications including liquids and chemicals by providing exceptionally high bond strength with excellent chemical and water resistance. Michem® Flex P1853R is approved for direct food contact and can be utilized as a heat seal coating adhering to a variety of materials such as film, paper, and metal.

Michem® Flex P1883

(Water based heat seal coating and primer for extrusion coated resins.)

Primer for metal and paper substrates promoting good adhesion to extrusion coated resins resulting in strong bond strength as well as excellent water and chemical resistance. It may also be used as a low temperature heat seal coating for bonding aluminum foil to itself or to paper.

 

Contact Michelman for more information or to request a sample.