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Dianal BR-220
Dianal BR-220 is a relatively low molecular weight acrylic resin with high solubility and compatibility. It is used for flexographic inks and metal coatings.
Dianal BR-220 is a thermoplastic acrylic resin with a relatively low molecular weight. It is supplied as a nondusting solid bead that is soluble in solvents such as ketones, toluene, and glycol ethers. BR-220 is used to form films with excellent adhesion to metals and creates a high degree of flexibility while maintaining good hardness.
BR-220 is an ideal binder for flexographic inks, where it is compatible with most pigments and additives. With it measuring a 1 on the Gardner color scale, it is also used as a binder for clear coats that help protect bright metals, such as silver, copper, and brass. BR-220 produces durable films with high resistance to abrasion, chemical attack from dilute acids and bases, yellowing due to UV exposure, and weathering. This resin may be combined with nitrocellulose to improve drying speeds.
Specifications
Nonvolatiles, min %: 99.0 Clarity in toluene at 30% solids: Clear Gardner color, max: 1 Gardner viscosity at 25°C and 30% solids in toluene: E–J Glass transition temp, onset °C: 50 Molecular weight: 65,000 Acid number, mg KOH/g resin: 9 MFI, g/10 min at 190°C: 20
Primary Chemistry: Acrylic
Features & Benefits
Forms films with a good balance of flexibility and toughness Forms clear solutions and films with high gloss
Problems Solved
Coloration of clear topcoats due to the presence of resins that impart color to films Poor durability of coatings or inks on flexible plastic or metallic substrates Degradation of coatings or inks due to exposure to chemicals or harsh environmental conditions
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Thank you for your inquiry and interest in ChemPoint. We will respond to you shortly.
ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
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