EPiC database - Solvent-based paint

This material is part of the free Environmental Performance in Construction (EPiC) Database. The EPiC Database contains embodied environmental flow coefficients for 250+ construction materials using a comprehensive hybrid life cycle inventory approach.Paint is used to protect surfaces from moisture, UV and wear. It can protective coating for timber, metals, plastics and plaster products. There are two main types of paint: water-based paint (including waterborne acrylics, and acrylic latex paints) and solvent-based paint (also known as alkyd or oil-based enamel paints).Paint is produced by combining resin, solvents, pigment, and additives. Resins are used to bind together the ingredients. For solvent-based paint these include: dammar, mastic, copal and alkyd resin. Pigments are added to create colour and sheen, and can include calcium carbonate, talc, oxides and mica amongst others. Solvents such as mineral spirits or turpentine are used to dilute and thin the paint. Other additives are included to reduce drying time and give the paint particular properties. Solvent-based paints are becoming less common, due to the high levels of volatile organic compounds (VOCs) present. Paints with high levels of VOCs are toxic to the environment, have a harsh odour and can be dangerous to inhale. Solvent-based paints are cheaper and tougher than the water-based alternative, and are commonly used in high-traffic areas (although they are more susceptible to UV deterioration). They are more abrasion resistant and have a more brilliant gloss, with a smooth finish. They are difficult to clean, and require mineral turpentine, rather than water.

该材料属于免费的环境性能在建筑（EPiC）数据库的一部分。EPiC数据库收录了超过250种建筑材料的环境流系数，采用了全面的混合生命周期清单方法。油漆用于保护表面免受潮湿、紫外线和磨损的影响，它可作为木材、金属、塑料和石膏制品的保护涂层。油漆主要分为两大类：水基油漆（包括水性丙烯酸和丙烯酸乳胶油漆）和溶剂基油漆（亦称为油性醇酸或油基磁漆）。油漆的生产过程涉及将树脂、溶剂、颜料和添加剂混合。树脂用于将成分粘合在一起。对于溶剂基油漆，这些包括：达玛尔树脂、沥青、柯巴树脂和醇酸树脂。颜料被添加以产生颜色和光泽，其中可能包括碳酸钙、滑石粉、氧化物和云母等。矿物精炼油或松节油等溶剂用于稀释和稀释油漆。其他添加剂被包含以缩短干燥时间并赋予油漆特定的性能。由于挥发性有机化合物（VOCs）含量高，溶剂基油漆的使用正在逐渐减少。高VOCs含量的油漆对环境有毒，具有刺鼻的气味，吸入可能危险。与水基油漆相比，溶剂基油漆价格更低，耐久性更强，常用于高流量区域（尽管它们更容易受到紫外线退化的影响）。它们具有更好的耐磨性和更明亮的光泽，以及光滑的表面处理。清洁困难，需要使用矿物精炼油而不是水。