Specific application of PVA 2488

PVA 2488(PVA 088-50) is a white small granular, stable and non-toxic water soluble polymer, mainly used as building mortar additive and dry mortar field.

PVA 2488 is especially suitable as a mortar additive, which can be used with cellulose ether water retaining agent to improve the flexibility and water retention of cement mortar and gypsum building materials, and improve the viscosity of mortar. In addition, it can also reduce the friction of the mortar, thereby enhancing the working efficiency and quality, preventing the cracking and falling off of the plaster layer, and increasing its adhesion strength and smoothness. The bonding strength of PVA powder is 2.5-3 times higher than that of redispersible emulsion powder, and the service life is long, which can greatly reduce the production cost.

PVA 2488 in ash calcium base putty can significantly improve the cohesion strength, adhesion and water resistance of putty coating. At the same time, it can also significantly improve the phenomenon of delamination scars during grinding, and improve the surface fineness of the putty after grinding. In addition, PVA powder can also accelerate cement solidification in cement-based putty, and has excellent film forming property.

PVA 2488 is one of the main binders of instant glue powder, which can be combined with an appropriate amount of hydroxypropyl methyl cellulose and supplemented with an appropriate amount of thickening and complexing additives to obtain environmentally friendly and high bonding strength double fly powder. At the same time, the product can also be mixed with cement gypsum for wet wall leveling.

The amount of PVA 2488 can be adjusted according to the specific use situation. In gray calcium base putty, the recommended addition amount is 0.3%-0.8%. The amount used in building mortar is also minimal. One ton of gouache in instant glue powder only needs to add 1 kilogram of PVA 2488.

PVA 2488 also has a variety of other uses, such as cosmetics, screen sensitive film, coated paper coating agent, zinc plate printing sensitive film, long fiber yarn sizing agent.

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