How to Use Polyurethane Paint?
Polyurethane paint is a two-component coating with a wide range of applications. And it is easy to use.
Step one. Before applying polyurethane paint, the substrate needs to be cleaned. The steel surface needs to be polished and sandblasted to remove oil stains and rust. Furniture surfaces need to be deburred and potholes filled.
Step two. Polyurethane paint needs to be mixed with a special curing agent. Add polyurethane paint thinner. The mixture is fully stirred and cured for 20 minutes, and then the construction can be carried out.
Step three. The process method can adopt spray coating, brush coating and the like. Choose the appropriate method according to the actual situation. If the requirements for the coating film are high, the spraying method can be used. Brush coating can be used for small area coating.
PU Paint for Metal
The PU metallic paint is suitable for outdoor use. And it has the characteristics of aging resistance, weather resistance, yellowing resistance, no chalking, no discoloration, and the like. PU metal paint is a kind of decorative metallic paint with high glossiness, bright reflection, and good fullness.
The commonly used colors PU paint for metal are mainly silver, gray silver, gold, and so on. The PU metallic paint can be used for finishing the painting of landscape steel structures, public buildings, bridges, highway guardrails, mechanical equipment, storage tanks, and so on.
The intermediate coating has quite a high requirement for stone hit resistance. While polyurethane coating is the best in this regard and thus valued greatly. So some famous enterprises in the world have the patent of polyurethane anti-stone coating. They are Sanyo Chemical, BASF, PPG, and Bayer, etc.
As to the automobile finishing coat, polyurethane coating is characterized by metallic effect and the use of the paint is the development trend.
At present, two-component acrylic polyurethane varnish has been extensively used in European automobile production line. This kind of varnish has outstanding acid resistance. Polyurethane varnish is heat resistant. The temperature is 120 cent degrees.
In China, acrylic polyurethane finishing coat has been developed by many enterprises. Thermosetting acrylic paint is widely used in the coating of cars, buses, and trucks as it is low-temperature drying, self-drying, and non-yellowing, with fatty polyisocyanate as cross-linking agent.
As the China coating additive manufacturer, IRO provides the highest quality polyurethane products. For more information, please click here.