腻子粉和石膏粉虽同属墙面处理材料，但在成分构成、功能用途、性能特点等方面存在明显差异，了解这些区别能帮助在施工中正确选择，避免因材料误用影响墙面质量。

　　Although putty powder and gypsum powder belong to the same category of wall treatment materials, there are significant differences in their composition, functional use, and performance characteristics. Understanding these differences can help to make the correct choice during construction and avoid the impact of material misuse on wall quality.

　　成分构成是两者最根本的区别。腻子粉以碳酸钙、滑石粉等天然矿物质为主要原料，添加适量黏合剂（如纤维素醚、淀粉醚）调配而成，整体呈现细腻的粉末状，矿物质占比通常在 90% 以上，化学性质稳定，无明显的膨胀或收缩特性。石膏粉的主要成分是二水硫酸钙，由天然石膏矿石经煅烧、磨细加工制成，遇水后会发生化学反应，形成坚硬的结晶结构，这种特性使其具有一定的凝结硬化能力，但也容易受环境湿度影响出现返潮现象。

　　The composition of the ingredients is the fundamental difference between the two. Putty powder is mainly made of natural minerals such as calcium carbonate and talcum powder, and mixed with appropriate adhesives (such as cellulose ether and starch ether). It presents a fine powder shape as a whole, with mineral content usually above 90%. It has stable chemical properties and no obvious expansion or contraction characteristics. The main component of gypsum powder is calcium sulfate dihydrate, which is made by calcining and grinding natural gypsum ore. When it comes into contact with water, it undergoes a chemical reaction to form a hard crystalline structure. This characteristic gives it a certain degree of coagulation and hardening ability, but it is also susceptible to moisture regain due to environmental humidity.

　　功能用途各有侧重。腻子粉主要用于墙面的精细找平与装饰打底，适合在墙面基层处理的后期使用。它能填补基层表面的细小孔洞、缝隙，使墙面达到光滑平整的状态（平整度误差可控制在 2 毫米以内），为后续涂刷乳胶漆、铺贴壁纸等装饰工序提供良好基础。无论是新房装修的毛坯墙，还是旧房翻新的墙面修补，腻子粉都能通过多次批刮（通常 2-3 遍）实现细腻的表面效果。石膏粉则多用于墙面的初步找平与造型制作，适合处理基层的较大凹陷、孔洞（深度 5 毫米以上），或制作石膏线条、石膏浮雕等装饰构件。在墙面基层存在明显高低差时，石膏粉可通过较厚的涂抹（5-20 毫米）快速填充，利用其硬化后的强度固定基层形态。

　　Each has its own emphasis on functional purposes. Putty powder is mainly used for fine leveling and decorative priming of walls, and is suitable for use in the later stage of wall base treatment. It can fill the small holes and gaps on the surface of the base layer, making the wall surface smooth and even (the flatness error can be controlled within 2 millimeters), providing a good foundation for subsequent decorative processes such as painting latex paint and laying wallpaper. Whether it is the rough wall of a new house renovation or the wall repair of an old house renovation, putty powder can achieve a delicate surface effect through multiple scraping (usually 2-3 times). Gypsum powder is mainly used for preliminary leveling and shaping of walls, suitable for treating large depressions and holes (with a depth of more than 5 millimeters) in the base layer, or for making decorative components such as gypsum lines and gypsum reliefs. When there is a significant height difference in the base layer of the wall, gypsum powder can be quickly filled with a thick coating (5-20 millimeters), and its hardened strength can be used to fix the shape of the base layer.

　　性能特点差异显著。腻子粉的附着力强，与墙面基层（如混凝土、水泥砂浆）结合紧密，干燥后不易脱落，且具有良好的耐水性（优质腻子粉浸泡 24 小时无软化），适合潮湿环境中的墙面处理，能减少因湿气渗透导致的鼓包、发霉。其收缩率低（通常≤0.3%），干燥过程中不易出现开裂，能长期保持墙面的平整度。石膏粉硬化速度快（加水搅拌后 30 分钟至 2 小时即可凝固），初期强度高，但干燥后收缩率较大（可达 1%-3%），容易出现细微裂纹，且耐水性较差（遇水后易软化溃散），不适合直接用于卫生间、厨房等潮湿区域的墙面，也不宜作为墙面装饰层的最终材料。

　　There are significant differences in performance characteristics. Putty powder has strong adhesion and is tightly combined with wall substrates such as concrete and cement mortar. It is not easy to peel off after drying and has good water resistance (high-quality putty powder does not soften after soaking for 24 hours). It is suitable for wall treatment in humid environments and can reduce bulging and mold caused by moisture infiltration. Its shrinkage rate is low (usually ≤ 0.3%), and it is not easy to crack during the drying process, which can maintain the flatness of the wall for a long time. Gypsum powder has a fast hardening speed (it can solidify within 30 minutes to 2 hours after mixing with water), high initial strength, but a large shrinkage rate (up to 1% -3%) after drying, and is prone to fine cracks. It also has poor water resistance (it is easy to soften and disintegrate when in contact with water), and is not suitable for direct use on walls in damp areas such as bathrooms and kitchens, nor as the final material for wall decoration layers.

　　施工方式与注意事项不同。腻子粉施工时需加适量水搅拌成膏状，用刮刀均匀批刮在墙面，每遍厚度控制在 1-2 毫米，待上一遍完全干燥（通常 24 小时）后再进行下一遍，避免因层间未干导致后期起泡。施工后需进行打磨（用 240 目以上砂纸），使墙面更加光滑。石膏粉施工时需严格控制加水量（水灰比约 1:0.6），搅拌后需在凝固前快速使用（操作时间通常 15-30 分钟），批刮厚度根据需求调整，较厚时需分层涂抹（每层厚度不超过 10 毫米），防止因内部热量无法散发导致开裂。凝固后无需精细打磨，主要依靠其自身的硬化强度保持形态。

　　The construction method and precautions are different. During the construction of putty powder, it is necessary to add an appropriate amount of water and mix it into a paste. Use a scraper to evenly apply it to the wall, with a thickness of 1-2 millimeters per layer. Wait until the previous layer is completely dry (usually 24 hours) before proceeding to the next layer to avoid later foaming caused by incomplete drying between layers. After construction, it is necessary to polish (using sandpaper with a grit of 240 or more) to make the wall surface smoother. During the construction of gypsum powder, it is necessary to strictly control the amount of water added (water cement ratio of about 1:0.6). After mixing, it should be quickly used before solidification (operation time is usually 15-30 minutes). The scraping thickness should be adjusted according to the needs, and if it is thicker, it should be applied in layers (each layer thickness should not exceed 10 millimeters) to prevent cracking due to the inability to dissipate internal heat. After solidification, there is no need for fine polishing, it mainly relies on its own hardening strength to maintain its shape.

　　在实际应用中，两者常配合使用：先用石膏粉处理墙面的较大缺陷，完成初步找平；再用腻子粉进行精细找平，形成互补。但需注意，石膏粉表面必须完全干燥（通常需 3-7 天）后才能批刮腻子粉，否则石膏粉中的水分会影响腻子粉的附着力，导致墙面出现分层、脱落。正确区分并合理使用两者，能充分发挥各自优势，保障墙面处理的质量与耐久性。

　　In practical applications, the two are often used in combination: first, use gypsum powder to treat larger defects on the wall surface and complete preliminary leveling; Then use putty powder for fine leveling to form complementarity. However, it should be noted that the surface of gypsum powder must be completely dry (usually 3-7 days) before applying putty powder, otherwise the moisture in the gypsum powder will affect the adhesion of the putty powder, leading to wall delamination and peeling. Correctly distinguishing and reasonably using the two can fully leverage their respective advantages, ensuring the quality and durability of wall treatment.

　　本文由济南腻子粉友情奉献.更多有关的知识请点击:http://www.jnfhjc.com真诚的态度.为您提供为全面的服务.更多有关的知识我们将会陆续向大家奉献.敬请期待.

　　This article is a friendly contribution from Jinan gypsum powder For more information, please click: http://www.jnfhjc.com Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.