-
Categories
-
Pharmaceutical Intermediates
-
Active Pharmaceutical Ingredients
-
Food Additives
- Industrial Coatings
- Agrochemicals
- Dyes and Pigments
- Surfactant
- Flavors and Fragrances
- Chemical Reagents
- Catalyst and Auxiliary
- Natural Products
- Inorganic Chemistry
-
Organic Chemistry
-
Biochemical Engineering
- Analytical Chemistry
- Cosmetic Ingredient
-
Pharmaceutical Intermediates
Promotion
ECHEMI Mall
Wholesale
Weekly Price
Exhibition
News
-
Trade Service
In the construction of real stone paint, a closed primer must be used.
The primer can play a good role in adhesion and alkali resistance.
Both transparent primer and colored primer are used more in engineering.
Today, Nan Zhen will take everyone to see the difference between the two.
The basic composition of each: transparent primer has emulsion, water and additives; colored primer has emulsion, water and additives, as well as titanium dioxide and color paste com" href="http://">coating online coatingol.
com .
The primer is essentially a barrier film
It has the function of sealing, anti-alkali and anti-salting out, and improving adhesion
Sealing effect Theprimer has a sealing effect on the base surface, blocking the penetration and damage of water and free substances to the top coat.
Alkali resistance & anti-salt-out and alkalinity The base surface is soaked in moisture, water, etc.
to produce alkali blooms, causing crater-like protrusions on the surface of the paint film.
In severe cases, alkali frost will form and eventually damage the paint film.
Improve adhesion Theprimer contains a higher emulsion content and stronger adhesion, which can improve the adhesion between the paint film and the wall.
Generally, primers in the construction industry have the following classifications
Penetrating primer
Excellent permeability, mainly for walls with a slightly weaker base surface strength and larger porosity.
After rolling or spraying, it has a penetrating reinforcement and sealing effect on the base.
Sealing primer
Excellent sealing performance, mainly for the new base surface with greater alkali and salinity.
When the base surface of new mortar or putty is not fully cured and hydrated and hardened in the initial stage, the surface of the base layer contains a large amount of alkali and calcium salt which seriously threatens the appearance of the coating.
Colored primer
Most of the colored primers are black, and there are also primers of the same color as the topcoat or close to the color.
The colored primer functions as a general primer and has certain functionality.
Should I choose a transparent primer or a colored primer for the construction of real stone paint?
The main difference between transparent primer and black primer is the division of the wall.
If the wall is divided into large or undivided, transparent primer should be used.
If the wall is divided into small cells, black primer should be used.
Apart from this difference, there is actually no difference between transparent primer and black primer, and there is no need to be too entangled in the choice.