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Polyurethane Finish Coating

Polyurethane Finish Coating

The polyurethane finish coating is a paint film containing a number of polyurethane links. In addition, there are urea links, ether links, ester bonds, allophanate links, etc. in the finish coating. Conventionally, it is still named as polyurethane paint.


As a commonly seen paint, the polyurethane finish coating falls into single component and two component finish paint. The two component polyurethane finish coating is composed of isocyanate prepolymer and hydroxyl-containing resin, or normally known as firming agent and base. There are many types of the polyurethane finish coating, including acrylic polyurethane, alkyd polyurethane, polyester urethane, polyether-urethane, and epoxy polyurethane coating. With excellent mechanical properties and solid content, the polyurethane paint has wide applications and great potential.




The polyurethane finish coating can be applied through spray coating, brush painting, and roller coating, which have varied requirement for viscosity of coatings. Viscosity regulation should be achieved by means of special thinner, with water, banana oil, alcohol, and gasoline strictly prohibited.


SH Chemical Group Co.,Ltd is an experienced polyurethane finish coating manufacturer and supplier located in China. Our polyurethane finish coating has superior physical and chemical properties, such as strong adhesion, high ornamentality, chemical resistance, and excellent weathering performance. Hence, the paint is extensively applied to many fields, including national defense, aviation, transportation, household appliances, instruments and meters, carpentry and furniture, waterproof materials, leather products, glass and plastic products, and others. Currently, we have established a vast client base in the international market, and our paints are highly sought after by customers from Russia, Spain, Ukraine, Holland, India, Mexico, and Africa.


In the following we will introduce you our two component outdoor polyurethane finish coating, S52-40, in the hope of assisting customers in choosing the right products.


Outdoor Polyurethane Finish Coating, S52-40 Two Component


Introduction
Composed of hydroxyl-containing resin, weather resistant pigment and firming agent, the outdoor polyurethane finish coating features two component packaging. Firm, bright, and rich, the paint film boasts strong resistance to abrasion, weather, oil, water, boiling water, sea water, benzene solvents, and acid, alkali, salt, chemical and atmospheric corrosion, etc.


Instructions


Mixture RatioComponent A: Component B =4:1
Curing Time23±2℃: 20min
Shelf Life23±2℃: 8h
Coating MethodsAirless spraying, manual brushing and roller coating
ThinnerX-10 Polyurethane paint thinner
Maximum Dilution<5%
Spray Holes20P20
Spraying Pressure150kg/cm2 (For reference only, adjustable)
Tool CleaningX-10 Polyurethane paint thinner
Paint Film ThicknessWet film: 90um, Dry film: 35um
Coating Interval0℃: the shortest interval 3h, the longest 48h; 25℃: the shortest interval 2h, the longest 24h; 35℃: the shortest interval 1h, the longest 16h
Surface TreatmentApply the polyurethane finish coating within the allowed interval between the preceding coating.
Operating Conditions1. The two component paint should be mixed fully and evenly, according to the required mass ratio. Keep it still for 20 minutes before application. 2. The substrate temperature should be at least 3℃ higher than the dew point.3. The ideal temperature range for using the outdoor polyurethane finish coating is 0-35℃.It can not be applied when there is a relative humidity higher than 85% on rainy, foggy, and snowy days, or under burning daylight in summer.
Preceding CoatsPolyurethane iron-red antirust coating
Subsequent CoatsOutdoor polyurethane finish coating, indoor polyurethane finish coating, polyurethane oil proof paint
Recommended Number of Coats2 coats is recommended when the polyurethane coating is used as primer, with the dry film thickness of 60-70um. When the two component outdoor polyurethane finish coating is employed in the coated layer, 1 coat is needed.

Parameters


ColorAll colors
GlossGlossy
Theoretical Coverage120g/m2 (Varied for differently colored polyurethane finish coating)
Specific WeightApproximately 1.33
Drying Time23±2℃: Surface drying: 2h Complete drying: 24h
Complete Curing23±2℃: 7d
Flash PointComponent A: 25℃, Component B: 30℃
Storage Life6 months

In addition to the two component outdoor polyurethane finish coating, we at SH Chemical Group Co.,Ltd also provide chlorinated polyethylene paint, heat resistant paint, alkyd primer, and related products for customers all over the globe. You can learn more details of these products by browsing our related product webpage. With short production cycle, we can finish the production of your order within 20 days after receiving your prepayment. Attentive after sales service is available at SH Chemical Group Co.,Ltd . We offer free use guide for our customers. For the damaged products due to quality problems within warranty period, we supply raw materials for maintenance, free of charge. Years of experience in production and sale has effectively guaranteed the quality of our products and service. If you have any of our product need, please contact us via the phone number or email provided on our website. The staff at SH Chemical Group Co.,Ltd is ready and waiting to serve you.

Polyurethane Finish Coating










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