PU168 Aliphatic Acrylic Polyurethane Topcoat

Overview

Product Features

• Forms a high-strength, long-lasting anti-corrosion system when used with epoxy or polyurethane primers.
• Excellent anti-corrosion performance.
• Good recoatability.
• Capable of curing at low temperatures.

Recommended Applications

Technical Parameters

Application Guidelines

Surface Preparation

• Ensure the substrate is free of grease, dust, moisture, and other contaminants before applying WH-PU168, with appropriate primer pre-applied.
• To ensure film appearance, the primer should be smooth and free of surface defects such as dry spray or orange peel.

Mixing and Dilution

• WH-PU168 is a two-component product requiring correct component ratio. Use the entire contents of each paint container after mixing.
• First, stir the base material until uniformly smooth (no more than 2 minutes), then slowly add the curing agent and stir for 3 minutes. A variable-speed power stirrer is recommended.
• Avoid over-stirring, as this may accelerate curing and shorten pot life. High temperatures shorten pot life; low temperatures extend it.
• Dilution is generally not required. If necessary, add a small amount of thinner (5% or less), subject to local VOC and air quality regulations.

Application

• WH-PU168 can be applied by airless spraying, roller coating, or conventional spraying.
• Ventilation: Good ventilation in enclosed spaces is critical for applicator safety and product performance. Air must be dry, as application is not permitted at RH >85%.

Recoat Time

Safety Measures

• Warning: Irritating to eyes and skin. Vapors may cause respiratory allergies in sensitive individuals. May cause skin allergic reactions.
• Avoid inhaling vapors. Do not contact eyes or skin. Use protective gear for eyes, ears, and skin.
• Use a suitable respirator to prevent potential respiratory irritation. Thoroughly wash skin after use. Wash contaminated clothing before reuse.
• First Aid: In case of eye contact, flush with clean water for at least 15 minutes. Remove contaminated clothing and shoes, and wash affected skin with soap. If breathing stops, perform mouth-to-mouth resuscitation and seek immediate medical attention.

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