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CAB-531-1
CAB-531-1 is a cellulose acetate butyrate (CAB) with high butyrate content. It is used as a film former in solvent-based coatings that require good flexibility.
Eastman CAB-531-1 is a low–molecular weight, mixed cellulose ester with high butyrate content. CAB-531-1 is the ideal resin for coatings that require best-in-class appearance and performance. Pigment orientation, flow, leveling, durability, and gloss are all improved with Eastman CAB-531-1. When combined with thermoplastic acrylic resins, this cellulose acetate butyrate forms durable films with excellent weathering resistance.
CAB-531-1 has better flexibility than lower-butyrate CABs and is compatible with a broader range of solvents and resins. Due to this increased flexibility, CAB-531-1 requires less plasticizer modification. As this cellulose acetate butyrate has a higher viscosity than other Eastman CABs, it is very effective in increasing cold-crack resistance. CAB-531-1 has also been used in nail care applications as a replacement for nitrocellulose due to superior UV stability and product safety since cellulose esters are much less flammable than nitrocellulose.
Improves flow and leveling Reduces cratering Reduces dry time Provides polishability Improves sprayability Serves as a pigment dispersion medium Imparts metallic pigment control Increases redissolve and sag resistance Enhances color uniformity Decreases sand scratch telegraphing Facilitates intercoat adhesion
Problems Solved
Poor color strength and luster due to poor pigment dispersion Sagging of solvent-based coatings Long dry times of solvent-based coatings with good flow and leveling High cost of plasticizers used in coatings Use of flow and leveling agents made not using naturally derived materials Insufficient viscosity build using low–molecular weight CABs Safety issues using nitrocellulose
Eastman Solus™ performance additives are the newest cellulose esters designed for high-solids solvent-borne systems. Solus™ is specifically engineered to meet lower VOC target while improving performance in clear, pigmented and metallic automotive coatings.
Eastman CAB enhances efficiencies and reduces waste through fewer rejects and reduced need for re-coating while substantially improving finished outcomes.
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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.
Thank you
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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