Good adhesion with PVC, PS, and PET Solid methacrylate polymer used for heat seal varnish

Properties

1. Chemical Composition: Being a methacrylate polymer, SA-213 has a structure that includes methacrylate groups, which contribute to its thermal and adhesive properties.

2. Physical State: Solid form allows for ease of application in coatings and varnishes.

3. Adhesion: Exhibits excellent adhesion to various substrates including:

   • Aluminum
   • PVC (Polyvinyl Chloride)
   • PS (Polystyrene)
   • PET (Polyethylene Terephthalate)

     Appearance	Beads
     Glass transition temperature (Tg)	39℃
     Molecular weight (Mw)	130,000 g/mol
     Intrinsic viscosity (IV)	0.43
     Acid value	≤ 1.0 mgKOH/g
     Water content	≤ 0.5%

• Heat Seal Varnish: The primary use of SA-213 is as a heat seal varnish, which is important for packaging industries where heat sealing is necessary to ensure product integrity and shelf life.

• Coatings: It can be used in various coatings requiring strong adhesion and durability.

Solvent Compatibility

SA-213 is soluble in a wide range of solvents, enhancing its versatility:

• Ketones: Good solvent properties contribute to its application in diverse environments.
• Aromatic Hydrocarbons: Compatibility indicates potential use in industrial applications.
• Glycol Eters and Glycol Eter Acetates: Provides a balance of evaporation rates and solvency.
• Chlorinated Hydrocarbon Solvents: Show the ability to function in aggressive chemical environments.

Additionally, it can be mixed with petroleum hydrocarbons and alcohols, expanding its applicability in formulation chemistries where these solvents might be present.

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