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Polyurea Applied Over 30 Gage Galvanized Flashing

Polyurea Applied Over 30 Gage Galvanized Flashing
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Several coating systems and designs were chosen to protect a concrete chamber with side walls coated with a polyvinylidene fluoride (PVDF) material. When polyurea was identified as the coating to be used at this engineering pilot plant, which contains harsh caustic chemicals in conjunction with PVDF coated panel walls; an extensive research was conducted to determine which method will be utilized to create a seamless protective film between these two systems. 

Product Number: 41212-716-SG
Author: Ernst Toussaint
Publication Date: 2012
Industry: Coatings
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$20.00
$20.00

Several coating systems and designs were chosen to protect a concrete chamber with side walls coated with a polyvinylidene fluoride (PVDF) material. When polyurea was identified as the coating to be used at this engineering pilot plant, which contains harsh caustic chemicals in conjunction with PVDF coated panel walls; an extensive research was conducted to determine which method will be utilized to create a seamless protective film between these two systems. In this area, there is a gap which exists between the floor and the vertical wall which varies between 1” and ¼”. To bridge the gap between the two surfaces, it was decided by the Engineer that galvanized flashing plates will be the metal of choice as most coatings are unable to have great adhesion to PVDF. This metal is easy to work with, readily available and from a cost perspective it will save the project over ninety percent of material costs compared to standard carbon steel plates. The selected coating system needs to be chemically resistant to all caustic chemicals in the plant as well as have an adhesion value greater than 400 psi.

Several coating systems and designs were chosen to protect a concrete chamber with side walls coated with a polyvinylidene fluoride (PVDF) material. When polyurea was identified as the coating to be used at this engineering pilot plant, which contains harsh caustic chemicals in conjunction with PVDF coated panel walls; an extensive research was conducted to determine which method will be utilized to create a seamless protective film between these two systems. In this area, there is a gap which exists between the floor and the vertical wall which varies between 1” and ¼”. To bridge the gap between the two surfaces, it was decided by the Engineer that galvanized flashing plates will be the metal of choice as most coatings are unable to have great adhesion to PVDF. This metal is easy to work with, readily available and from a cost perspective it will save the project over ninety percent of material costs compared to standard carbon steel plates. The selected coating system needs to be chemically resistant to all caustic chemicals in the plant as well as have an adhesion value greater than 400 psi.

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