How to choose the viscosity of HPMC

 How to choose the viscosity of HPMC

 

Hydroxypropyl methylcellulose is used in mortar, putty powder, water-based paint, and tile adhesive. Many manufacturers do not know how to choose the viscosity of hydroxypropyl methylcellulose

 

Putty powder, mortar, water-based paint, tile adhesive

Hydroxypropylmethylcellulose

 

method/step

 

1. Many mortar and putty powder companies use hydroxypropyl methylcellulose as a chemical raw material. Some companies are not very clear about which viscosity hydroxypropyl methylcellulose to choose. Hydroxypropyl methylcellulose on the market Known as 40000-50000 low-viscosity hydroxypropyl methylcellulose, there are also 100000, 150000, 200000 high-viscosity hydroxypropyl methylcellulose. Let's take a look at how various industries should choose hydroxypropyl methylcellulose.

 

2. Cement mortar: Hydroxypropyl methylcellulose with a viscosity of 10W-20W should be selected for cement mortar. Hydroxypropyl methylcellulose with this viscosity can be used as a water-retaining agent and a retarder to make the mortar pumpable and make the mortar pumpable. After the cement mortar is applied, it will not crack due to drying too fast, which increases the strength after hardening.

 

3. Putty powder: The putty powder should choose hydroxypropyl methylcellulose of about 10W, and the water retention is better and the viscosity is lower. The hydroxypropyl methylcellulose of this viscosity mainly plays the role of water retention, bonding and lubrication in the putty, avoiding cracks and dehydration caused by excessive water loss, and at the same time enhancing the adhesion of the putty and reducing the sagging phenomenon during construction , The construction is relatively smooth.

 

4. Tile adhesive: The tile adhesive should use hydroxypropyl methylcellulose with a viscosity of 100000. This viscosity of hydroxypropyl methylcellulose can significantly improve the bonding strength of tile adhesives, increase the water retention and extend the construction period, fine and uniform, easy to construct, and has good anti-moisture property.

 

5. Glue: 107 glue and 108 glue should use 100000 viscosity instant hydroxypropyl methylcellulose. Hydroxypropyl methylcellulose can make the glue thicken and water-retaining, and enhance the workability.