After being used for a period of time, the paint finishes of many buildings will peel, crack, and fall off, which will destroy the overall aesthetic feeling of the building and affect people’s living environment. The application of architectural coatings is not only related to the performance of the coating itself, but also related to the variety and performance of the wall and putty. The putty rubber powder is under the coating, which plays the role of filling gaps, smoothing, and enhancing the bonding strength between the coating and the wall.
Therefore, putty rubber powder is required to have good plasticity and rheology, good two-way affinity, compression resistance, wear resistance, good leak-proof and heat-insulating properties, etc. These properties are also closely related to its production process. Let’s take a look at the basics Recipe and process flow.
According to specific wall materials and different requirements, the basic formula of single-component, high-elastic anti-crack and anti-leakage putty rubber powder determined through building material experiments can be adjusted appropriately in a small range to obtain waterproofing that meets different requirements. product.
Among them, wollastonite has a special needle-like structure, and its addition can significantly improve the crack resistance of the anti-crack and leak-proof putty powder. Methyl cellulose is an effective thickener and rheological additive. Its addition will improve the rheological properties of the anti-crack and leak-proof putty powder. However, the thickening effect of inorganic bentonite is obvious, the cost is low, and the thixotropy is high. Play the role of filler. But it is worth noting that the amount of methyl cellulose should not be too large, otherwise it will greatly reduce the waterproof performance of the anti-crack and leak-proof putty powder.
Secondly, the production process of anti-cracking putty rubber powder is simple, as long as various raw materials are fully mixed and stirred, it can be prepared, and there is no adverse effect on the environment during the production process.
The technical performance of this process is that the highly elastic anti-crack and leak-proof construction rubber powder produced according to the above method has a uniform appearance of white or gray powder, which belongs to green environmental protection products, and has excellent impact resistance, excellent hydrophobicity and water resistance , high elasticity, good crack resistance, stable storage and easy construction.
Post time: Feb-22-2025