Polyester powder coating

TGIC-free powder coating options are available and are being used by manufacturers worldwide to achieve the same durable finish benefits as TGIC powder coatings. In fact, there are several advantages to the newer technology. It offers not just exterior durability, but enhanced mechanical performance, as well as flow and leveling properties. TGIC-free powder coatings provide cost-saving benefits to finishers by offering superior first-pass transfer efficiencies. Companies that have converted to TGIC-free based coatings have documented first-pass transfer efficiency improvements of asRead More …

Several types of acrylic resins have been introduced since the mid 1980s. Capable of producing powders that are highly weatherable, they are intended to meet the new demands of the automotive industry. Carboxy acrylics Carboxy acrylics/TGIC combinations never really showed significant weatherability improvements over carboxy polyester TGIC systems,and the general concern about the use of TGIC has just about killed off this chemistry. Carboxy acrylic / HAA combinations ,which have recently been promoted ,offer another possibility for this class ofRead More …

TGIC Replacement chemistries Hydroxyalkylamide(HAA) As the future of TGIC is uncertain,manufacturers are searching for an equivalent replacement for it. HAA curatives such as Primid XL-552 ,developed and trademarked by Rohm and Haas,have been introduced. The chief drawback to such hardeners is that, since their cure mechanism is a condensation reaction, films that build to thicknesses exceeding 2 to 2.5 mils (50 to 63 microns) may display outgassing ,pinholing ,and poor flow and leveling . This is especially true when theseRead More …

Powder coating industry in China over the past decade, the continued rapid growth, compared with developed countries, there are still some gaps. 1. powder coating a single species, low-grade, high-grade Powder coating a single species specific performance is: compared with U.S. and European markets, the powder coating structure of the varieties compared with foreign countries is somewhat different, 12% epoxy powder coatings, epoxy polyester powder coatings accounted for 65% Polyester TGIC powder coatings accounted for 19%, 3% polyester / Primid powder coating,Read More …

Foreign production of powder coating application began in the 1950s of the last century, after 50 years of development, production increased from 70,000 t in 1980 to grow to 793 000 t in 2001, an increase of 11.5 times the average annual growth rate of 13%. The world about the powder coating manufacturer more than 500 (excluding China), Europe is at least 100, United States, about 70, about 15 Japanese, South Korea, about 7. The world average factory annual output ofRead More …

Many new performance characteristics are available in today’s coatings, from antibacterial properties to the ability to be cured by ultraviolet or even near-infrared radiation. Advanced Durability Recent research and testing has developed specially formulated polyester powder coating that provides even greater weatherability than achievable in previous years, and showing greater success in long-term Florida exposure testing. New TGIC-based powders are being used on outdoor stadium seating and other exterior applications that were previously susceptible to degradation from ultraviolet rays. LightRead More …

As the powder coating finish continued to gain further acceptance, other issues involving coatings were coming to light in Europe. These issues would affect the way the industry, as a whole, would progress through the 1970s and into the present. The highly industrialized nations of Western Europe,with population densities of more than 1,000 people per square mile, were fighting ever-increasing air and water pollution hazards. The paint and coatings industries of these countries feared legislation similar to the “Los AngelesRead More …

There is a full range of masking products to cover the finishing needs, masking caps, plugs and hooks to tapes and masking dots. Masking tape is a type of pressure sensitive tape made of a thin and easy-to-tear paper, and an easily released pressure sensitive adhesive. It is available in a variety of widths. It is used mainly in painting, to mask off areas that should not be painted. The adhesive is the key element to its usefulness, as itRead More …

Polyester degradation is affected by solar radiation, photocatalytic admixtures, water and moisture, chemicals, oxygen, ozone, temperature, abrasion, internal and external stress, and pigment fading.Out of all these, the following factors, all present in outdoor weathering, are the most important to coating degradation: moisture, temperatures, oxidation ,UV radiation. Moisture Hydrolysis occurs when a plastic is exposed to water or humidity.This chemical reaction may be a major factor in the degradation of condensation polymers such as polyesters , where the ester groupRead More …