Tag: Powder Coating Powder
Plasticizers in Coating Formulations
Plasticizers are used to control the film formation process of coatings based on physically drying film forming materials. Proper film formation is essential in order to meet demands on specific coating properties such as dry film appearance, substrate adhesion, elasticity, in combination with high level of hardness at the same time Plasticizers function by reducing film formation temperature and elasticize the coating; plasticizers work by embedding themselves between the chains of polymers, spacing them apart (increasing the “free volume”), andRead More …
Some Points to Know the Quality of The Powder Coating Powders
Exterior Appearance Identification: 1. Hand Feel: Should feel silky smooth,loose, floating, the more smooth loose of the powder, the better of the quality, on the contrary, powder feel rough and heavy, poor quality, not Easy spraying, powder falling twice more wastage. 2.Volume: The larger of the volume, the less filler of the powder coatings, the higher of the cost, the better the quality of the coating powders. On the contrary , the smaller of the volume, the higher content ofRead More …
Environmental advantages of powder coating mean substantial savings
Today’s environmental concerns are a major economic factor in the selection or operation of a finishing system. The environmental advantages of powder coating-no VOC problems and essentially no waste- can mean substantial savings in finishing costs. As energy costs continue to rise, other advantages of powder coating become even more important. Without the need for solvent recovery, complex filtering systems are not required, and less air has to be moved, heated, or cooled, which can be a significant cost saving.Read More …
Exterior architectural gloss coatings pigment selection
There are two primary types of TiO2 pigments: those which enamel grade performances below Critical Pigment Volume Concentration (CPVC), which corresponds to gloss and semi gloss powder coatings, and those improving spacing characteristics for above CPVC coatings applications (flat aspect). Exterior architectural gloss coatings pigment selection is based upon a good balance of properties associated to tight Particle Size Distribution which enables product to provide superior exterior high gloss.Within the extensive choice of pigments, the main ones for this applicationRead More …
How To Powder Coat
How to powder coat : pre-treatment – drying to remove water – spraying – Check – baking – check – Finished. 1.The characteristics of the powder coating can give full play to extend the coating life to break the painted surface first strictly surface pre-treatment. 2.Spray, was painted to be fully grounded in order to increase the efficiency of the powder coating of puffing. 3.The larger surface defects to be painted, coated scratch conductive putty, in order to ensure theRead More …
Methods are used to capture overspray during powder coating
Three basic methods are used to capture over sprayed powder coating powder:Cascade (also known as a water wash),Baffle, and Media filtration. Many modern high volume spray booths incorporate one or more of these methods of source capture in an effort to improve overall removal efficiency. One of the most common combination systems, is a cascade style booth, with multi-stage media filtration, prior to the exhaust stack, or prior to a VOC control technology like an RTO (regenerative thermal oxidizer). Anyone that looks behindRead More …
Adhesion problem of powder coating application
Poor adhesion is usually related to poor pretreatment or under cure. Undercure -Run an electronic temperature recording device with a probe on the part to ensure that the metal temperature reaches the prescribed cure index (Time at temperature). Pretreatment – Perform regular titration and quality checks to avoid a pretreatment problem.Surface preparation is probably the cause of the poor adhesion of the powder coating powder. Not all stainless steels accept phosphate pretreatments to the same extent; some being more reactiveRead More …
Advantages of UV powder coating systems
UV powder coating powder formulations consist of:UV powder resin,Photoinitiator,Additives,Pigment / extenders. Curing of powder coatings with UV light can be described as “the best of two worlds”. This new method makes it possible to benefit from the advantages of high cure speed and low cure temperature as well as environmental friendliness. The main advantages of UV curable powder systems are: Low system costs Application of one layer Maximum powder use with overspray recycling Low cure temperature High cure speed HardlyRead More …