23Sep
23Sep
ASTM D5150-17 Standard Test Method for Covering Power of Architectural Coatings Applied with Rolls
Meaning and use 5.1 The laboratory covering power of architectural coatings is usually measured using a scraper coater, which lays a film of uniform thickness. However, practical applicators, such as rollers, liners, and brushes, often apply films that lack uniformity due to incomplete leveling, resulting in the actual covering power of most coatings being less than that measured on films coated with a scraping blade. This test method simulates real-world applications and conditions in order to provide an indication of... 23Sep
ASTM D5324-16 Standard Guide for Testing Water-Based Architectural Coatings
abstraction This guide covers the selection and use of procedures for testing water-based architectural coatings for exterior, interior, or both types of surfaces. The properties that can be checked by the test methods listed herein are as follows: liquid paint properties (skin, conditions in containers, coarse particles and foreign bodies, density or weight per gallon, fineness of dispersion, flash point, odor, absorption, colorant) acceptance, dilution stability, packaging stability, thermal stability and settlement; Coating application and film formation characteristics (brush application... 23Sep
ASTM D5326-0 “Standard Test Method for Color Development in Colored Latex Paints”
Meaning and use 5.1 Due to poor compatibility, the colorant is sometimes not fully dispersed in the base paint, which may be a disadvantage of the colorant, the paint or both. This will result in poor color rendering, which is easily demonstrated by the conventional method of applying paint with a scraper and rubbing small areas of partially dried film through your fingers so that scraping produces high shear stress. This tends to disperse the undeveloped colorant (if any) and... 23Sep
Causes and solutions of paint shrinkage holes
In the process of coating construction, the shrinkage problem of the paint film may lead to the quality and appearance of the coating, so it is necessary to deeply understand the causes of shrinkage holes and solutions. This paper will discuss the causes of paint shrinkage and how to effectively deal with this challenge. 1. Causes of shrinkage holes Shrinkage holes are usually caused by small particles or droplets with low surface tension. These low surface tension substances can be present... 23Sep
Preparation and application of fatty acid emulsified asphalt waterproof coating
In the construction and infrastructure sector, waterproof coatings are a key element in ensuring the long-term protection of building structures and underground facilities. Fatty acid emulsified asphalt waterproof coating is a common waterproof coating with excellent waterproof performance and durability. The preparation method of fatty acid emulsified asphalt waterproof coating and its wide application fields are introduced in this paper. Preparation method The preparation method of fatty acid emulsified asphalt waterproof coating is relatively simple, but it is critical to ensure... 23Sep
Preparation and application of asphalt based thick waterproof coating
In construction and infrastructure engineering, waterproofing is one of the key factors to ensure the durability and durability of structures. Asphalt based thick waterproof coating, as an important waterproof material, plays a key role in the waterproofing of roofs and other building surfaces. This paper introduces the preparation method of asphalt based thick waterproof coating and its main application fields. Preparation method The preparation of asphalt based thick waterproof coating is a delicate process, which requires reasonable operation and temperature control.... 22Sep