What are the Limitations and Critical Issues for Polyurea Coatings?

Polyurea coatings do have some limitations and special considerations.

Because the coating is highly reactive and quick-curing, setting of the coating without adequate wetting out time can cause poor adhesion to the substrate. Formulators must ensure complete wetting out of the surface before the coating sets. It is a tricky situation.

Aromatic polyurea coatings may react to UV radiation, resulting in color changes and chalking. The aesthetics are negatively affected by UV radiation. For those applications that require visual appeal, an aliphatic polyurea must be used.

Hot spray applications require specialized and sophisticated spray equipment that are able to generate high pressures and high temperatures. Technicians must be specifically trained for this task.

Formulation, primer selection and stringent surface preparation are all critical steps for success.

Amber Zhang Ms.

Foreign trade 

Zhejiang Ruico Advanced Materials Co., Ltd. (Stock No.873233)

Add: No.188, Liangshan Road, Linghu Town, Nanxun District, Huzhou City, Zhejiang Province, China 313018

Phone: +86 (572) 2903236

Fax: +86 (572) 2905222

Wechat: 15534631339

Website: www.ruicoglobal.com 

Email: amber.zhang@ruicoglobal.com