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PU111 Polyurethane Primer

PU111 is an excellent two-component polyurethane primer, offering superior adhesion and anti-corrosion properties. Characterized by good constructability and corrosion resistance, it enables low-temperature curing, making it primarily suitable for anti-corrosion primer systems in engineering machinery and equipment.

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SKU: PU111 Polyurethane Primer Category: Tags: ,
Description

Overview

PU111 is an excellent two-component polyurethane primer, offering superior adhesion and anti-corrosion properties. Characterized by good constructability and corrosion resistance, it enables low-temperature curing, making it primarily suitable for anti-corrosion primer systems in engineering machinery and equipment.

Technical Parameters

ItemDetails
Resin/Pigment TypePolyurethane
ColorMud yellow, etc. (customizable according to color cards)
Surface FinishSemi-gloss
Mixing RatioWeight ratio 4 (base material) : 1 (curing agent)
Curing AgentCPU1110
Specific GravityApproximately 1.22 kg/L
Volume Solids Content60% (theoretical)
Flash Point33°C (91.4°F)
Pot Life3 hours at 23°C
Theoretical Spread Rate12 m²/L (based on 50μm dry film thickness)
Single Coat ThicknessWet film: 100μm; Dry film: 60μm
Application MethodsBrush coating, airless spraying
Nozzle Size (Airless)0.43-0.48mm
Outlet Pressure (Airless)15 MPa
ThinnerTH004
Tool Cleaning SolventTH004
VOC Content418 g/L
Drying TimeTouch dry: approx. 1 hour at 23°C, 50% relative humidity
Recoating IntervalRefer to application guidelines
Recommended Ambient Temperature for PrimingMin: -10°C; Max: 50°C. Avoid application at relative humidity >85%.
Storage & Shelf LifeStore in compliance with national regulations. Keep in a cool, well-ventilated place away from excessive heat; seal containers tightly. Shelf life: 1 year.

Application Guidelines

Surface Preparation
Before applying WH-PU111, ensure the substrate is free of grease, dust, moisture, and other contaminants, and has appropriate priming. To ensure film appearance, the primer should be smooth and free of surface defects such as dry spray or orange peel.
Mixing and Dilution
As a two-component product, WH-PU111 requires precise component ratio. Use the entire contents of each paint container after thorough 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 the product’s pot life. High temperatures shorten the mixture’s working life, while low temperatures extend it. Dilution is generally unnecessary; if required, add a small amount of thinner (5% or less) in compliance with local VOC and air quality regulations.
Application
WH-PU111 can be applied by airless spraying, roller coating, or conventional spraying.
Ventilation: Maintaining good ventilation in enclosed spaces is critical for applicators’ safety and the product’s proper performance. Air must be dry, as application is not permitted at humidity >85%.
Recoating Intervals
Physical parameters under different ambient temperatures:

Ambient Temperature-10°C0°C10°C20°C30°C
Touch Dry3 days36 h16 h8 h6 h
Full Curing (RH 70%)2 months32 days14 days7 days5 days
Minimum Recoating Interval6 days3 days32 h16 h12 h
Maximum Recoating IntervalUnlimitedUnlimitedUnlimitedUnlimitedUnlimited

Safety Precautions

Warning: Irritating to eyes and skin. Vapors may cause respiratory allergies in sensitive individuals. May induce skin allergic reactions. Avoid inhaling vapors. Keep away from eyes and skin. Use protective equipment for eyes, ears, and skin. Use a suitable respirator to prevent potential respiratory irritation. Thoroughly wash skin after use. Launder contaminated clothing before reuse. In case of respiratory arrest, perform mouth-to-mouth resuscitation and seek immediate medical attention.
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.

Declaration

The information herein is reliable. Each value is theoretically calculated from the product formulation. Upon request, our company can provide internal standard testing methods for the data above. Since usage conditions are beyond the manufacturer’s control, this information is not provided as a guarantee. The product is for professional use only. For any questions, contact our company.
Our Technical Support and Customer Service Center is ready to provide product consultation and application technical services. Welcome to contact us by letter or phone.

Contact:

Wanhua Energysav Science & technology Group Co.,Ltd
Address: No. 56 Taiyuan Road, Yantai, Shandong, China
Fax: 400-059-1116 | Tel: +86-17761309662 | Postal Code: 264006
 
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