Polyester Powder Coating Vs Pvdf
Powder coatings are available in numerous choices and a wide variety of colours textures finishes.
Polyester powder coating vs pvdf. The two most common types of fluoropolymers found in powder coatings are feve and pvdf. After natural leveling drying of pvdf the coating film is very thin. Excellent adhesion can be obtained through pretreatments of the metal involved including sandblasting and phosphate coating. Pvdf coatings are the finest for metal roofing and curtain wall components.
Anodized polyester and pvdf. Pvdf powder coating s vs. Pvdf coating is more expensive than powder coating. Drying of powder coating is mainly by baking.
Powder coatings are stronger than pvdf coatings. Anodized and polyester coatings are best for handrails and storefront. Pvdf fluoropolymers always need a primer beneath them whether liquid or powder and are. Overspray can not be recovered and becomes hazardous waste no loss of powder materiel due to evaporation of solvents.
There s a test on pvdf coatings super durable powder coatings and exterior powder coatings. The powder coating has good performance of anti corrosion high adhesion and thick coating film but it tends to discolor color fade if exposed to sunlight for a long time in the exterior area. It is useful for antimicrobial coatings. It is a powder that is easy to use and adheres to metals very well.
Tgic tri glycidyl isocyanurate and non tgic which is also known as tgic free or sometimes a primid. Coatings made from polyvinylidene fluoride resin nch 2 cf 2 baking ch 2 cf 2 n pvdf as the base material or with metal aluminium powder as the colour material fluorocarbon matrix is chemically bonded by fluorine carbonization whole bond. Anodizing is top suited to storefronts. Powder coatings are stronger than pvdf coatings.
The coated samples were placed in the hot sun of florida usa and exposed to the harsh environment of humid salty air for 12 years. The performance of pvdf coating determines that the spraying equipment must have an excellent atomizing effect to ensure the uniformity of. Pvdf has better colour fastness than polyester. Pvdf liquid coatings economic considerations powder coating liquid painting average material efficiency up to 95 of material sprayed.
Overspray may be reclaimed. Pvdf coatings are available only in matte finish in order to get super gloss more layers of coating have to be added resulting in an increase in cost of material and application. Powder coatings are available in numerous choices and a wide variety of colours textures finishes. Pvdf coatings have higher durability than powder coatings.
The test result proves that the stability and durability of pvdf coatings are 30 80 higher than the other two coats. Epoxy powder coat one disadvantage of epoxy powders is their inability to weather well. Hence it will provide better resistance to the effects of uv light. Pvdf is a premium paint finish as compared to polyester suitable for all profiles tropical tile standing seam and antilles including soffits under ceiling and wall cladding.
When comparing polyester vs. Average material efficiency is only 35. The two most widely used types of polyester powder.