Author: doPowder

 

Differences Between Tribo and Corona

Differences-Between-Tribo-and-Corona

When evaluating the two type guns for a specific application, there are some fundamental items to take into consideration. The differences between tribo and corona guns are outlined in this Manner. Faradav Cage Effect: Probably the most common reason to consider tribo guns for an application is the ability of the tribo gun to coat products with a high degree of Faraday cage effect areas.(See diagram #4.) Examples of these areas are corners of boxes, fins of radiators, and supportRead More …

The wood furniture manufacturer must know – Powder Coating

furnituremanufacturerpowdercoating2

We are often asked about the difference between powder coating and traditional liquid coating. Most people are also interested in wanting to know more about the advantages of powder coating, many of which are incomparable to other coatings. Powder coating is solvent-free 100% dry solid powder, and liquid coating needs solvent to keep liquid, so the most obvious difference is that the powder does not require solvents. Powder coating become more interesting due to its advantages. Let’s take a lookRead More …

The application of powder coating for wood furniture is developing rapidly

smartcoatings

Powder coating has long been applied to metal substrates. In recent years through the industry’s continuous efforts to reduce the curing temperature, improve spraying technology, Powder coatings have been applied in MDF and other wood. Powder spraying can make the industrial application of wood products to minimize water loss and size changes, while the coating can achieve a higher gloss and bright color effect, meanwhile in the state of the more stringent VOC restrictions on the situation, provides a substituteRead More …

Trend Of Titanium Dioxide (TiO2) Global Market

Titanium dioxide

The global market value of titanium dioxide (TiO2) is expected to reach $66.9 billion by 2025, according to a new report by the Grand View study. As demand for paints and paper pulp industry surges, the annual CAGR of the Asia-Pacific region from 2016 to 2025 is expected to grow at more than 15%. 2015, the global titanium dioxide market total of more than 7.4 million tons, CAGR is expected from 2016 to 2025 more than 9%. Automotive special coatingsRead More …

Titanium Dioxide’s Safety and Supply Issues in 2017

Titanium dioxide

Titanium dioxide (TiO2) is one of the most critical pigments in our daily life. It is crucial in everyday items such as toothpaste, sunscreen, chewing gums and paints. It has been in the news for most of 2017, beginning with higher prices. There has been significant consolidation in China’s TiO2 segment, leading to higher prices, and China has also reportedly restricted production due to air quality concerns. A January 2017 fire at Huntsman’s TiO2 plant in Pori, Finland, further restrictedRead More …

Preparation of Carboxylterminated for Fusion-bonded-epoxy Powder Coating

fusion-bonded-epoxy-external-coating

Preparation and Characterization of Carboxylterminated Poly (butadiene-co-acrylonitrile) -epoxy Resin Prepolymers for Fusion-bonded-epoxy Powder Coating 1 Introduction Fusion-bonded-epoxy (FBE) powder coatings which were first developed by 3M Co., are used widely when long-term corrosion protection is critical such as in the oil, metal, gas and water pipelines industries. However, the performance requirements for FBE powder coatings are challenging because of their high cross-linking density. The inherent brittleness of cured coatings is one of the major obstacles preventing wider application for epoxiesRead More …

The use of epoxy electrically conductive putty

conductive putty

Conductive putty Intended Uses Used to repair and fill up the floor surface before painting with antistatic finish in order to provide smooth conductive surface for next coat. Product Information conductive putty can be applied by doctor blade. Thick film may be obtained. After drying, no contraction or crack takes place to the film. Easy to be applied.The film possesses good adhesion, high strength, and small electric resistance. Its apperance is smooth. Application details Volume Solids:90%Color:BlackDry Flm Thickness: Depending onRead More …

Magical Light Decoration Is Created By Gold Nanoparticles Coating

nano-coating

Recently, scientists from the University of California studyed and found that gold nanoparticles change colors when pressure occurs. It is understood that the scientist embedded the particles to the polymer film, film color is bright blue, but after pressure, it will turn red. However, if the pressure is not very large, the color would show purple. In other words, the color change of film may reflect the presure degree. In fact hundreds of years ago, artists started using gold nanoparticlesRead More …

Bending Test – Qualicoat Testing Process

powder coating test

All organic coatings except class 2 and 3 powder coatings: EN ISO 1519 Class 2 and 3 powder coatings: EN ISO 1519 followed by a tape pull adhesion test as specified below: Apply an adhesive tape to the significant surface of the test panel following the mechanical deformation. Cover the area by pressing down firmly against the coating to eliminate voids or air pockets. Pull the tape off sharply at right angles to the plane of the panel after 1Read More …

Low Temperature Cure Powder Coatings For Heat-sensitive Substrates

heat sensitive substrates

Low Temperature Cure Powder Coatings For Heat-sensitive Substrates For application on heat-sensitive substrates like MDF, the powder must cure below 302°F (150°C) or even 212°F (100°C). Several approaches have been developed to achieve this goal, ranging from low-temperature-cure conventional chemistries to radiation-curable evolving chemistries. A vast number of published articles and patents have confirmed the ability of UV-curable technologies to produce glossy, smooth coatings on MDF within three to five minutes of process time.8The main advantages of UV-cured powders includeRead More …

What is Benefits of UV Powder Coating on Wood

UV Powder Coating on Wood

What is Benefits of UV Powder Coating on Wood UV powder coating technology offers a fast, clean and economic attractive method to achieve high-quality finishes on wood-based substrates. The coating process consists of the following steps: First the article is hung or placed onto a conveyor belt and the powder is sprayed electrostatically onto the object. Then the coated object enters the oven (temperatures of 90-140 degC are sufficient) where the powder melts and flows together to form a film.Read More …

The Use of Polyester Epoxy Combined Chemistry for UV Powder coating

Chemistry for UV Powder coating.webp

The combination of methacrylated polyester and acrylated epoxy resin offers an interesting blend of properties to the cured film. The presence of a polyester backbone results in good resistance of the coatings in weathering tests. The epoxy backbone gives outstanding chemical resistance, improved adhesion and smoothness. An attractive market segment for these UV powder coating is as replacement for PVC laminates on MDF panels for the furniture industry. The polyester/epoxy blend is achieved in four major steps. The polycondensation in theRead More …

QUALICOAT Standard for Natural Weathering Test

Natural Weathering Test

Exposure in Florida according to ISO 2810 , The natural weathering test should start in April. Class 1 organic coatings Samples shall be exposed facing 5° south to the horizontal and facing toward the equator for 1 year. 4 test panels per colour shade are required (3 for weathering and 1 reference panel) Class 2 organic coatings Samples shall be exposed facing 5° south for 3 years with an annual evaluation. 10 test panels per colour shade are required (3 per yearRead More …

What Hazardous chemicals in powder coating process

What Hazardous chemicals in powder coating process

Triglycidylisocyanurate (TGIC) TGIC is classified as a hazardous chemical and is commonly used in powder coating activities. It is: a skin sensitiser toxic by ingestion and inhalation genotoxic capable of causing serious eye damage. You should check SDSs and labels to determine if the powder coat colors you are using contains TGIC. Electrostatic powder coating containing TGIC are applied by electrostatic process.Workers who may come into direct contact with TGIC powder coatings include persons: filling hoppers manually spraying powder paint,Read More …

Binder and Crosslinkers for UV Powder Coatings

UV Powder Coating on Wood

Binder and Crosslinkers for UV Powder Coatings The most suitable approach for a coating formulation is the use of a major binder and a crosslinker. The cross¬linker may control the network density for the coating, while the binder determines properties of the coating such as discoloration, outdoor stability, mechanical properties, etc. Furthermore, this approach will lead to a more homogenous concept in the powder coating applications as a category bringing similitude to thermosetting coatings where crosslinkers such as TGIC andRead More …

Pearlescent Pigments

Pearlescent Pigments

Pearlescent Pigments Traditional pearlescent pigments consist of a high-refractive-index metal oxide layer coated onto a transparent, low-refractive-index substrate such as natural mica. This layering structure interacts with light to produce constructive and destructive interference patterns in both the reflected and transmitted light, which we see as color. This technology has been extended to other synthetic substrates such as glass, alumina, silica and synthetic mica. Various effects range from satin and pearl luster, to sparkle with high chromatic values, and hue-shiftingRead More …

How To Powder Coat

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 …

Cross Cut Test ISO 2409 Renewed

Cross Cut Test

The ISO 2409 Cross Cut Test has been recently updated by ISO. The new version that is now valid has several changes compared to the old one: Knives The new standard includes an enhanced description of the well-known knives.The knives need to have a trailing edge, because otherwise it skates instead of scratches. Knives that do not have this trailing edge are not according to the standard. Tape The new version of the standard has a huge change compared toRead More …

What is Powder Coating Line

powder coating spray both

Powder Coating Line – Powder coat line – Powder spray both – Spraying gun – Curing oven Spraying both A powder booth is an enclosure that is designed to contain the powder application process. A recovery system is attached to the powder booth shell. The recovery system uses a fan to pull air into the booth and prevent the oversprayed powder from migrating out of the enclosure. Spraying gun The spray gun is designed to impart an electrostatic charge to theRead More …

what is Powder Coating MSDS

powder coating msds

Powder Coating MSDS 1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME:   Powder Coating MANUFACTURE/DISTRIBUTOR: Jinhu Color Powder Coating Co., Ltd Address: Dailou Industrial Zone,Jinhu County,Huai’an,China Emergency Response Call: 2. COMPOSITION/INFORMATION ON INGREDIENTS HAZARDOUS INGREDIENTS : CAS No.   WEIGHT (%) Polyester resin : 25135-73-3   60 Epoxy resin : 25085-99-8   20 Barium sulfate: 7727-43-7   10 Pigments: N/A   10 3. HAZARDS IDENTIFICATION Primary Routes of Exposure : Skin Contact,Eye Contact . Inhalation :Inhalation of dust or mist caused during heating and processing can cause irritation of nose, throat and lungs,headache,nausea Eye Contact :Material can cause irritation Skin ContactRead More …

Pearlescent pigments still encounter some resistance in market promotion

pigment

With rapid development , pearl pigments have been more widely used in packaging , printing, publishing industry, from cosmetics , cigarette , alcohol , gift packaging, to business cards, greeting cards, calendars, book covers , to pictorial printing, textiles printing, pearlescent pigments figure everywhere. In particular pearls film for food packaging , increasing its market demand , such as in the ice cream, soft drinks , cookies , candy , napkins and packaging areas , the use of pearl filmRead More …

What Is Powder Coatings Manufacturing Process

What Is Powder Coatings Manufacturing Process

Powder Coatings Manufacturing Process The process of powder coatings production includes the following steps: Distribution of raw material Pre-mixing of raw material Extrusion (mixing of melted raw materials) Cooling and crushing the extruder’s output Grinding , classifying, and controlling of the particles Packaging Pre-mixing of raw materials In this step, the distributed raw materials of each production unit will be mixed based on the guidelines and formulization of research and development unit in order to have a homogeneous mixture underRead More …

Powder coatings curing process in the Oven

Powder coatings curing process

Powder coatings curing process in the oven consists of three stages. First,the solid particles are melted,then they combine together ,and finally they form a uniform film or coating over the surface . Maintaining low viscosity of the coating for an adequate time is very significant to have a smooth and even surface. Having decreased during the curing process, viscosity tends to increase as soon as the reaction (gelling )begins. Thus ,reactivity and heat temperature have a significant role in creatingRead More …

Procedure for X-CUT TAPE TEST METHOD-ASTM D3359-02

ASTM D3359-02

Procedure for X-CUT TAPE TEST METHOD-ASTM D3359-02 7. Procedure 7.1 Select an area free of blemishes and minor surface imperfections. For tests in the field, ensure that the surface is clean and dry. Extremes in temperature or relative humidity may affect the adhesion of the tape or the coating. 7.1.1 For specimens which have been immersed: After immersion, clean and wipe the surface with an appropriate solvent which will not harm the integrity of the coating. Then dry or prepareRead More …

Standard Test Methods for Measuring Adhesion by Tape Test

Test Methods for Measuring Adhesion

Test Methods for Measuring Adhesion This standard is issued under the fixed designation D 3359; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. 1. Scope 1.1 These test methods cover procedures for assessing the adhesion of coating films to metallic substrates byRead More …

ASTM D7803-Standard for Preparing HDG steel for powder coatings

coil powder coating

ASTM D7803 Bridges are one example of construction projects that are often built from hot-dip galvanized steel. How to coat this steel without adhesion failure of the powder system is explained in the new ASTM standard. The new standard, ASTM D7803, “Practice for Preparation of Zinc (Hot-Dip Galvanized)Coated Iron and Steel Product and Hardware Surfaces for Powder Coatings” covers surface preparation and thermal pretreatment of iron and steel products and hardware which have not been painted or powder coated previouslyRead More …

Coil coating is a continuous industrial process

Coil coating

Coil coating is a continuous industrial process in which multiple layers of organic film are applied and cured on a moving metal strip. The paints used are liquid (solvent-based) and are generally composed of polyesters with acid- or hydroxy- endgroups able to crosslink with melamines or isocyanates to form a complete network with film properties that are tailored to the final application of the coated metal panel (building products, beverage cans, domestic appliances, etc.). The total film thickness is aroundRead More …

Electrostatic fluidized Beds for Powder Coatings

Electrostatic-Fluidized-Bed-Powder-Coating

Electrostatic fluidized beds are especially applicable to continuous coating of sheets,wire screen and small simple configuration parts.The effective coating range is only 3-4inches over the bed and will not coat parts with deep recesses.Coatings range from 20-74um on relatively high speed lines. Electrostatic Fuidized Bed Advantages include:  High speed lines ;  Easily automated;  Acceptable to continuous length products Disadvantages include:  Coating area limited to 3-4inches above bed Restricted product flexibility; Best for 2 dimensional parts

QUALICOAT SPECIFICATIONS for PAINT, LACQUER AND POWDER COATINGS

QUALICOAT

SPECIFICATIONS FOR A QUALITY LABEL FOR PAINT, LACQUER AND POWDER COATINGS ON ALUMINIUM FOR ARCHITECTURAL APPLICATIONS 12th Edition-MASTER VERSION approved by the QUALICOAT Executive Committee on 25.06.2009 Chapter 1 General Information 1. General Information These Specifications apply to the QUALICOAT quality label, which is a registered trademark. The regulations for use of the quality label are set out in Appendix A1. The aim of these Specifications is to establish minimum requirements which plant installations, coating materials and finished products mustRead More …

Prevention of powder coating orange peel

Powder coating orange peels

Prevention of powder coating orange peel The appearance of the coating is becoming increasingly important in the new equipment manufacturing (OEM) Painting. Therefore, one of the main objectives of the coatings industry is to make the final requirements of the user paints to achieve the best performance, which also includes the surface appearance of satisfaction. Affect the visual effects of the surface condition by the factors such as color, gloss, haze, and surface structure. The gloss and image clarity isRead More …