外墙保温必看：济南抹面砂浆与粘结砂浆的核心区别，别再混用了！

　　External wall insulation must see: the core difference between Jinan plastering mortar and bonding mortar, don't mix them up anymore!

　　在墙面尤其是外墙保温施工中，抹面砂浆和粘结砂浆是两种高频使用的材料，但很多人会把它们混淆，甚至误用，不仅影响施工效果，还可能导致外墙保温系统开裂、脱落等隐患。其实两者的定位、成分、性能和用途有着明确差异，作为专业抹面砂浆生产厂家，今天就从外墙保温场景出发，帮大家彻底理清这两种砂浆的区别，避免踩坑。

　　In the construction of wall insulation, especially for exterior walls, plastering mortar and bonding mortar are two frequently used materials. However, many people confuse or even misuse them, which not only affects the construction effect but may also lead to hidden dangers such as cracking and detachment of the exterior wall insulation system. In fact, there are clear differences in the positioning, composition, performance, and use of the two types of mortar. As a professional manufacturer of plastering mortar, today we will start from the exterior wall insulation scene to help everyone thoroughly clarify the differences between these two types of mortar and avoid pitfalls.

　　先从核心用途说起，这是区分两者的首要标志。抹面砂浆的核心作用是“找平与保护”，在外部保温系统中，它主要用于保温板表面的处理——一方面能填补保温板表面的微小凹凸，让基层达到平整状态，为后续外墙装饰（如刷涂料、贴瓷砖）打下基础；另一方面能在保温板外层形成防护层，隔绝外界的灰尘、雨水，保护保温板不受侵蚀，同时还能配合耐碱网格布增强抗裂性能，防止墙面因温度变化或外力冲击出现裂缝。

　　Let's start with the core purpose, which is the primary distinguishing factor between the two. The core function of plastering mortar is "leveling and protection". In external insulation systems, it is mainly used for surface treatment of insulation boards - on the one hand, it can fill the small bumps and depressions on the surface of insulation boards, making the base layer reach a flat state, and laying the foundation for subsequent exterior wall decoration (such as painting and tiling); On the other hand, it can form a protective layer on the outer layer of the insulation board, isolating dust and rainwater from the outside, protecting the insulation board from erosion, and at the same time, it can be combined with alkali resistant mesh cloth to enhance crack resistance, preventing cracks from appearing on the wall due to temperature changes or external impact.

　　而粘结砂浆的核心用途是“粘贴与固定”，它就像“胶水”一样，专门用于将保温板、瓷砖等材料牢牢粘贴在墙体基层上。在外部保温施工中，第一步往往是用粘结砂浆将保温板粘结到建筑外墙上，它需要确保保温板与墙体之间没有空隙、不空鼓，即使长期暴露在风吹雨淋的环境中，也不会出现脱落现象，是整个外墙保温系统的“固定基石”。

　　The core purpose of bonding mortar is "adhesion and fixation". It is like "glue", specifically used to firmly adhere insulation boards, tiles and other materials to the wall base. In external insulation construction, the first step is often to use bonding mortar to bond the insulation board to the exterior wall of the building. It is necessary to ensure that there is no gap or hollowing between the insulation board and the wall, and even if it is exposed to wind and rain for a long time, it will not fall off. It is the "fixed cornerstone" of the entire external wall insulation system.

　　成分差异是两者功能不同的根本原因，虽然它们都以水泥和沙为基础原料，但关键添加成分截然不同。抹面砂浆的成分中，除了水泥（提供基础强度）和沙（增加体积、提升稳定性），通常会加入石灰——石灰能改善砂浆的施工性，让砂浆更容易涂抹平整，同时提升砂浆的柔韧性，减少干燥收缩时的开裂风险；聚合物改性剂则是“可选配置”，只有对防裂要求较高的场景才会添加，用于进一步增强抗裂性和粘结力。

　　The fundamental reason for the different functions of the two is the difference in composition. Although they are both based on cement and sand as raw materials, the key added components are completely different. In addition to cement (which provides foundation strength) and sand (which increases volume and stability), lime is usually added to the composition of plastering mortar. Lime can improve the workability of mortar, make it easier to apply smoothly, and enhance its flexibility, reducing the risk of cracking during drying shrinkage; Polymer modifiers are an "optional configuration" that will only be added in scenarios with high crack resistance requirements to further enhance crack resistance and bonding strength.

　　粘结砂浆的成分则完全围绕“强粘结”设计，它同样含有水泥和沙，但几乎不会添加石灰，反而会重点增加“聚合物改性剂”的用量——这类成分能大幅提升砂浆的粘结强度，确保保温板、瓷砖等材料粘得牢、不易脱落；同时还会加入纤维素醚、乳胶粉等专用添加剂，纤维素醚能改善砂浆的保水性，避免砂浆过快干燥影响粘结效果，乳胶粉则能增强砂浆的柔韧性和耐候性，让粘结层能适应墙体轻微沉降或温度变化，避免因刚性过强导致开裂。

　　The composition of the bonding mortar is completely designed around "strong bonding". It also contains cement and sand, but almost no lime is added. Instead, the amount of "polymer modifier" is increased, which can greatly enhance the bonding strength of the mortar, ensuring that materials such as insulation boards and tiles are firmly bonded and not easily peeled off; At the same time, special additives such as cellulose ether and latex powder will be added. Cellulose ether can improve the water retention of mortar, avoiding the influence of rapid drying on the bonding effect. Latex powder can enhance the flexibility and weather resistance of mortar, allowing the bonding layer to adapt to slight wall settlement or temperature changes, and avoiding cracking caused by excessive rigidity.

　　性能侧重上，两者的差异也十分明显。抹面砂浆更看重“平整度”和“抗裂性”——施工后表面需光滑平整，才能让后续装饰层贴合紧密；同时要具备一定的抗裂能力，防止因环境变化出现裂缝，破坏保温和防护效果。而粘结砂浆的核心性能是“粘结强度”，外墙保温场景下，它的粘结强度需能承受保温板自身重量以及风吹、震动等外力，确保长期不脱落；此外还需具备良好的耐候性，在高温、低温、雨天等不同环境下，粘结性能不衰减；同时要有轻微的柔韧性，避免墙体沉降导致粘结层开裂。

　　In terms of performance emphasis, the difference between the two is also very obvious. The plastering mortar places more emphasis on "flatness" and "crack resistance" - the surface needs to be smooth and even after construction in order for the subsequent decorative layers to adhere closely; At the same time, it is necessary to have a certain degree of crack resistance to prevent cracks from occurring due to environmental changes, which can damage the insulation and protective effects. The core performance of bonding mortar is "bonding strength". In the scenario of external wall insulation, its bonding strength needs to be able to withstand the weight of the insulation board itself, as well as external forces such as wind and vibration, to ensure long-term adhesion; In addition, it is necessary to have good weather resistance, and the bonding performance should not deteriorate in different environments such as high temperature, low temperature, and rainy days; At the same time, it should have slight flexibility to avoid wall settlement and cracking of the bonding layer.

　　在实际外墙保温施工中，两者通常是“配合使用”而非“二选一”：先在建筑外墙上涂抹粘结砂浆，将保温板精准粘贴并固定；待粘结砂浆固化后，再在保温板表面涂抹抹面砂浆，找平的同时压入耐碱网格布增强抗裂性；最后待抹面砂浆干燥，即可进行外墙装饰。这种“粘结固定+抹面防护”的组合，才能确保外墙保温系统既牢固又耐用。

　　In actual external wall insulation construction, the two are usually used in combination rather than choosing one from the other: first, apply bonding mortar on the building's external wall, accurately paste and fix the insulation board; After the bonding mortar solidifies, apply plastering mortar on the surface of the insulation board, level it, and press in alkali resistant mesh cloth to enhance crack resistance; Finally, wait for the plaster mortar to dry before proceeding with exterior wall decoration. This combination of "adhesive fixation+plaster protection" is necessary to ensure that the external wall insulation system is both firm and durable.

　　厂家专业选型建议

　　Manufacturer's professional selection suggestions

　　作为生产厂家，提醒大家：施工前一定要根据用途精准选型，粘贴保温板、瓷砖就用粘结砂浆，找平保温板表面、做防护层就用抹面砂浆，切勿混用——用抹面砂浆粘保温板，会因粘结强度不足导致保温板脱落；用粘结砂浆做抹面，则会因成本过高且表面平整度不佳，影响后续装饰。同时要选择符合国家标准的产品，比如抹面砂浆需符合GB/T 25181-2019，粘结砂浆需符合JC/T 992-2016《墙体保温用膨胀聚苯乙烯板胶粘剂》，确保性能达标，为外墙保温系统的安全保驾护航。

　　As a manufacturer, we remind everyone that before construction, it is necessary to accurately select according to the purpose. When pasting insulation boards and tiles, use bonding mortar. When leveling the surface of the insulation board and making a protective layer, use plastering mortar. Do not mix them - using plastering mortar to stick insulation boards may cause the insulation board to fall off due to insufficient bonding strength; Using adhesive mortar for plastering may affect subsequent decoration due to high cost and poor surface smoothness. At the same time, products that meet national standards should be selected, such as plastering mortar that meets GB/T 25181-2019, and bonding mortar that meets JC/T 992-2016 "Adhesive for Expanded Polystyrene Boards for Wall Insulation", to ensure performance standards and safeguard the safety of external wall insulation systems.

　　结语

　　Conclusion

　　抹面砂浆和粘结砂浆虽同属墙面用砂浆，但在外部保温场景下的定位截然不同——一个是“找平防护层”，一个是“粘贴固定层”。只有认清两者的核心区别，按需选用，才能保证外墙保温施工质量，避免后期出现开裂、脱落等问题。我们作为专业厂家，既生产适配外墙保温的优质抹面砂浆，也提供高粘结强度的粘结砂浆，始终以精准的产品定位助力规范施工。如果还有选型疑问，欢迎随时咨询！

　　Although plastering mortar and bonding mortar belong to the same category of wall mortar, their positioning in external insulation scenarios is completely different - one is "leveling protective layer" and the other is "pasting fixed layer". Only by recognizing the core differences between the two and selecting according to needs can we ensure the quality of external wall insulation construction and avoid problems such as cracking and peeling in the later stage. As a professional manufacturer, we not only produce high-quality plastering mortar suitable for exterior wall insulation, but also provide high bonding strength bonding mortar, always assisting in standardized construction with precise product positioning. If you have any selection questions, please feel free to consult at any time!

　　本文由   济南抹面砂浆 友情奉献.更多有关的知识请点击  https://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 plaster mortar For more related knowledge, please click https://www.jnfhjc.com/ Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.