When using paint dispersants, in order to ensure its effect and guarantee the quality of
the paint, you need to pay attention to the following issues:
1. Choose the right dispersant
Type selection: Choose the right type of dispersant according to factors such as the type
of paint, the type of pigment and the required performance. Paint dispersants mainly include anionic,
cationic, nonionic, amphoteric, electrically neutral, polymeric superdispersants and controlled free
radical superdispersants, each of which has its specific scope of application and advantages.
Quality considerations: Choose dispersants with reliable quality and stable performance to ensure
the dispersion effect and stability of the paint.
2. Control the amount used
The principle of appropriate amount: The amount of dispersant used should be controlled within a
certain range. Excessive or insufficient amount may affect the dispersion effect and paint
performance.
Test determination: Before formal use, it is recommended to conduct a small test or pilot test to
determine the optimal amount of dispersant.
3. Pay attention to the addition method
The timing of addition: The dispersant should be added to the paint at an appropriate time to ensure that
it can fully play its role.
Generally speaking, the pigment and filler should be stirred
after addition, and then the dispersant should be added.
Stirring method: Use appropriate stirring method and speed to make the dispersant evenly dispersed in the paint.
4. Adjust pH value
Suitable range: Some dispersants are sensitive to pH value, so the pH value of the paint should be adjusted
to the appropriate range before use.
Stability considerations:Keeping the pH value of the paint stable helps to ensure the stability and dispersion
effect of the dispersant.
5. Control temperature
Suitable temperature: The effect of the dispersant is affected by temperature, and stirring and dispersion should
be controlled within the appropriate temperature range.
Avoid overheating: Avoid excessively high paint temperature to avoid destroying the structure and performance
of the dispersant.
6. Avoid mixing with other chemicals
Chemical compatibility: When using dispersants, pay attention to their compatibility with other chemicals to
avoid adverse reactions.
Use alone: Unless there is clear guidance, it is not recommended to mix dispersants with other chemicals.
7. Storage conditions
Dry environment: Dispersants should be stored in a dry, cool, well-ventilated environment to avoid moisture
and high temperature.
Sealed storage: After use, the storage container should be sealed in time to prevent the dispersant from
volatilizing and contaminating.
8. Pay attention to safety
Personal protection: When using dispersants, wear appropriate personal protective equipment, such as gloves,
masks and goggles.
Avoid accidental ingestion: Keep dispersants away from children and pets to avoid accidental ingestion or contact.
First aid measures: Understand and master the first aid measures for dispersants so that you can respond quickly
in case of accidents.
In summary
when using paint dispersants, you need to pay attention to many aspects, including choosing the right dispersant,
controlling the amount used, paying attention to the addition
method, adjusting the pH value, controlling the temperature, avoiding mixing with other chemicals, storage conditions,
and paying attention to safety. Following these precautions will help
improve the use of paint dispersants and ensure the quality of the paint.
