Energy savings plus mechanical reinforcement and rheology control

Ethyl Cellulose Hot Melt Heat Seal Coating

Adhesives Formulation

Applicable Type

Hot-melt Adhesives , Sustainability / Natural Adhesives

Applicable Base Polymer

Ethyl Celluloses (EC)

Applicable Industrial Sectors

Heat seals

Applicable Base Polymer Properties

Ethyl cellulose is available as solvent solutions or as hot melt formulations. The properties can vary considerably with the type of resin used and the adhesive formulation. Good bonds are formed to porous materials, but adhesion on nonporous substrates is not outstanding. Water resistance is only fair. Ethyl cellulose has good toughness at low temperatures and as a result their use as food packaging adhesives is common.

Typical Formulation Ingredients

Ingredient

Parts by weight

Ethyl cellulose (e.g., Dow Ethocel Standard 10)

Wax (Castorwax additive, NL Industries)

Wax (Paraffin Wax 57°C)

Resin (Super Beckacite 2000 phenolic resin, Reichhold Chemicals)

Tackifier (Staybelite Resin, Eastman Chemical)

Plasticizer (diamyl phthalate)

(Source: Adhesives Formulary Handbook, NIIR Board, Asia Pacific Business Press, Inc., 2010, p. 350)

Processing

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Resulting Properties

Ethyl cellulose adhesives adhere well, forming a tough bond to a variety of materials such as glass, leather, metals, cloth, and some plastics. They provide a relatively strong bond to polar substrates. Ethyl cellulose adhesives age fairly well, but discolor in sunlight. The adhesive formulation provided above can be used for manufacturing coatings and heat sealing compounds for food packaging, soap wraps, shelf paper and label coatings. The flexible coating has high gloss and low moisture transmission properties.