Architectural coatings are part of the building decoration industry. They not only provide a beautiful appearance to the building, but also have functions such as protection, heat insulation, and waterproofing. In the field of architectural coatings, floor coatings and wall coatings are the two main categories, and the testing of their performance is an important part of ensuring their quality and functionality. This article will take an in-depth look at the different types, performance testing items and standards of architectural coatings, as well as the development of new technologies in these areas.
Architectural coating types
In the field of architectural coatings, floor coatings and wall coatings are the two main categories, each containing multiple categories, each with unique properties and application scenarios.
Floor coating
Epoxy floor coating - with epoxy resin as the main component, it has the characteristics of wear resistance, corrosion resistance, and easy cleaning. It is often used on industrial plants, parking lots and other floors.
Polyurethane floor coating - has good elasticity and wear resistance, suitable for places with high ground requirements, such as sports venues, etc.
Antistatic floor coating - mainly used in electronics and other places that are sensitive to static electricity requirements, and can effectively prevent the accumulation of static electricity.
Mortar-type anti-slip floor coating - contains granular substances to provide anti-slip effect. It is commonly used in slippery environments, such as kitchens and bathrooms.
wall coating
Latex paint - based on latex, environmentally friendly and easy to apply, it is the mainstream choice for home wall painting.
Elastomeric paint - has strong elasticity and weather resistance, is suitable for exterior wall painting, and can cope with climate change.
Texture paint â gives walls a unique texture and is often used to create a special indoor atmosphere.
Real stone paint - contains stone powder, showing imitation stone texture and enhancing the nobility of the wall.
Colorful paint - can achieve colorful effects and meet personalized decoration needs.
Architectural coating performance testing project
In order to ensure that the quality and performance of architectural coatings meet standards, various performance testing projects have become an indispensable link. These projects cover many aspects such as environmental performance, basic performance, construction performance, film reliability and film performance.
Environmental performance testing items:
Detection of harmful substances, such as benzene, toluene and xylene content.
The determination of VOC (volatile organic compounds) content ensures that the paint will not pollute indoor air during use.
Formaldehyde content detection, pay attention to indoor air quality.
Basic performance testing items:
Detection of physical properties such as appearance, viscosity, density, etc. to ensure that the coating is easy to handle during use.
Detection of chemical properties such as paint base acid value and paint base saponification value to evaluate the stability and durability of paint.
Construction performance testing items:
Workability, coating amount, drying time, etc. directly affect construction efficiency and effect.
Washing resistance, stain resistance, etc., examine the maintenance performance of the coating during long-term use.
Paint film reliability testing items:
Resistance to liquid media, including resistance to water, acid, alkali, solvent, and oil.
Moisture resistance, heat resistance, neutral salt spray resistance, etc., test the performance of coatings under different environmental conditions.
Paint film performance testing items:
The appearance, color, gloss, thickness, etc. of the coating film are directly related to the decorative effect of the coating.
Yellowing resistance, scratch resistance, impact resistance, abrasion resistance, etc., to evaluate the durability and loss resistance of the coating.
Architectural coating testing standards
In order to standardize the production and use of architectural coatings, various countries have formulated a series of coating testing standards. These standards aim to ensure the quality and performance of architectural coatings and provide a unified evaluation system for the industry.
GB/T 9757 Solvent-based exterior wall coatings: Mainly used to evaluate the performance of solvent-based exterior wall coatings, including environmental protection, constructionability, coating performance, etc.
GB/T 25261 Reflective thermal insulation coatings for buildings: It is suitable for evaluating the thermal insulation performance of reflective thermal insulation coatings for buildings, focusing on its ability to reflect solar radiation.
GB/T 17371 Silicate composite thermal insulation coating: used to test the thermal insulation performance of silicate composite thermal insulation coating, which plays an important role in building insulation.
GB/T 9755 Synthetic Resin Emulsion Exterior Wall Coatings, GB/T 9756 Synthetic Resin Emulsion Interior Wall Coatings: used to evaluate the performance of synthetic resin emulsion exterior wall coatings and interior wall coatings respectively.
JC/T 423 Water-soluble interior wall coatings: used to test the basic performance and environmental performance of water-soluble interior wall coatings.
JG/T 206 Environmentally friendly silicone-acrylic emulsion laminated coating for exterior wall insulation: It is suitable for evaluating the performance of silicone-acrylic emulsion laminated coating for exterior wall insulation, with special emphasis on its environmental protection.
With the continuous development of technology, the architectural coatings industry is also constantly innovating, introducing some new technologies to improve the performance and functions of coatings. Smart paint uses sensors and intelligent control technology to realize self-monitoring and self-adjustment of paint, improving the adaptability of paint in different environments. Nanotechnology introduces nanomaterials to improve the stain resistance, weather resistance and other properties of coatings, while also improving its adhesion and wear resistance. Water-based coating technology Due to the increasing awareness of environmental protection, water-based coating technology has gradually become mainstream and has the advantages of low VOC and low odor. Self-cleaning coatings use photocatalyst and other technologies to make the coating surface self-cleaning and reduce maintenance costs. Biodegradable coatings use biodegradation technology to make the coating more easily degraded after its service life, reducing its impact on the environment.
As an important component of architectural decoration, architectural coatingsâ performance testing and standards play an important role in ensuring building quality and living environment. With the continuous emergence of new technologies, the architectural coatings industry is constantly moving towards a more environmentally friendly, intelligent and high-performance direction. In the future, we have reason to expect that the field of architectural coatings will continue to usher in more innovations and provide more reliable solutions for the sustainable development of the construction industry.
