The Use and Function of Wetting Agent

Nov 9, 2021

Wetting agent is a special surfactant that can reduce the internal surface tension between solid or liquid. Applying wetting agents to lawns can increase the ability of water to wet water on hydrophobic soils or other growing media. The surface tension of water is the ability of surface water to cohere to the center of the body of water. The water droplet containing wetting agent spreads its attachment area on the hydrophobic surface, which is larger than the ordinary water droplet attachment area, and the contact angle between the water droplet surface and the hydrophobic solid surface becomes smaller.

Surfactants are classified into cationic, anionic and nonionic types. Anionic surfactants have the shortest activity because they are easy to wash in the soil. Cationic surfactants are easily adsorbed by the negative charges on soil particles or colloids, and can make the soil completely impermeable after drying. Nonionic surfactants have the longest activity and the best effect. Non-ionic active agents include esters, ethers and ethanol. Ester is most effective in moist sand; ether is effective in moist clay; ethanol is highly effective in organic matter. Certain non-ionic wetting agents are mixed with other types of materials and are suitable for a wider range of soil types.

Practice has proved that it is beneficial to contain an appropriate amount of wetting agent in the soil. Wetting agent has an impact on soil microbial degradation, and it can be applied once or twice in a growing season.

The application of wetting agents can also increase the availability of soil moisture and nutrients, promote the growth of turfgrass, reduce water evaporation, reduce soil erosion when the lawn is established, promote seed germination, reduce dew and frost damage, and slow down local dry points. However, excessive application of humectants or application during heat stress can harm turf grasses. Water immediately after applying the wetting agent to avoid foliar burns. To ensure the safe application of wetting agents, a small area test must be carried out before application.
We rarely see extreme pressure high temperature grease in our lives. Many people don’t know much about extreme pressure high temperature grease. High temperature grease is a specially developed synthetic grease with a very high concentration of PTFE lubricating particles. , After professional production and deployment, it can be well adapted to high temperature and heavy-duty equipment. So what is the effect of using such a grease? What are its main features? Let’s take a look at some basic introductions to better use high-temperature grease and exert its good effects.
1. It is made of medium-viscosity modified silicone oil. It is a cost-effective fluorinated grease and is compatible with most rubber and plastics.
2. Excellent high temperature performance and oxidation stability, prevent high temperature deterioration of lubricating grease, and ensure long-term normal operation of lubricating parts at high temperature.
3. Excellent mechanical stability, colloidal stability and storage properties, to ensure that it will not be lost in the lubricated part, and has a long service life;
4. High temperature grease adhesion performance, mechanical stability and colloidal stability are good, and will not be lost in the lubricating part;
Utilizing the performance characteristics of high-temperature grease, it is widely used in more industries to increase the lubrication effect, and at the same time reduce the wear caused by the friction between parts, and its role is more prominent in the maintenance of equipment. Therefore, it can effectively improve production efficiency and reduce overall costs. However, you must keep it clean during use to prevent the mixing of mechanical impurities, dust, water and other solvents. After touching this product, please wash your hands before eating.
Wetting the substrate
Paint wetting agents are divided into two types: substrate wetting agent and wetting dispersing agent. The substrate wetting agent is used to improve the surface tension and permeability of the coating, so that it can better wet the substrate, thereby improving Paint adhesion,

Especially for improving the adhesion of the primer to the substrate, it is widely used, generally some fluorocarbon or fluorocarbon modified ionic or non-ionic substances or other substances that can improve the wetting of the substrate.

Assist in dispersion and anti-settling
In addition to this function, the wetting and dispersing agent for coatings also has the most important function of assisting in dispersing fillers and pigments and assisting in anti-settling.

It can assist the dispersion of pigments and fillers in the coating and the subsequent anti-settling of the coating anti-settling agent. In the anti-settling after the coating is diluted, the anti-settling effect of the wetting and dispersing agent is far more important than the anti-settling agent.