As the demand for differentiation of color paste products increases day by day, the application requirements for color pastes are also getting higher and higher. For example, some users require resin-free water-based color paste, while some customers may want to buy resin color paste. So according to the needs of different customers, which resin color paste is easier to use? Or is resin-free water-based color paste better to use?
As a water-based color paste manufacturer that has been in business for 13 years, we can provide some opinions and suggestions to friends who are in need of resin-free color pastes and resin color pastes.
What is resin-free water-based color paste? What is resin color paste?
Color paste is a fine chemical made of pigments or pigments and fillers that are highly dispersed in paint. Our common water-based color paste is a pigment and filler product made by adding surfactant to water as a medium and then dispersing and grinding it. There is no adhesive or connecting material in this water-based color paste, so it can be called resin-free water-based color paste or micro-fat water-based color paste (containing a very small amount of acrylic resin or dispersant resin). Obviously, resin color paste refers to a color paste that contains a certain kind or type of resin paint as an adhesive. Such as polyurethane color paste, acrylic color paste, etc.
How to use resin color paste? How to use resin-free water-based color paste?
The use of resin color paste mainly depends on the material system that the resin in the color paste composition can match. If your color paste customers are concentrated in a certain application field or specific industry, and their product applications and processes will not change significantly, then you can process and produce resin color pastes of film-forming resins that match their product systems and supply them directly. When used by customers, the performance of the resin color paste can basically meet the requirements of your customers’ products. But when your customers are highly differentiated and the resin systems of different customers’ products are also different, then your resin colorants may need to be matched with different resin systems to meet the coloring performance requirements of different types of products. For example, unsaturated resin system, epoxy resin system, phenolic resin system, polyester resin system, etc.
Resin-free water-based color paste does not contain resin binders and will not be affected by different resin systems in the material during use. In theory, it can be applied to a variety of resin systems and has strong general performance. Therefore, resin-free color paste is sometimes also used. Known as a universal resin-free color paste. For example, resin-free water-based color pastes are widely used for coloring or toning in different water-based system materials, such as pigment printing pastes, water-based paints, latex paints, daily chemical detergents, etc. However, good resin-free color paste is not so easy to make. We tried it in our laboratory a few years ago. We grinded and dispersed the resin-free water-based color paste to less than 10 microns. The storage performance at room temperature was okay, but Once the color paste is mixed with the matching resin, a rough texture will appear. Even if the proportion of dispersant is increased in the color paste formula to achieve stability during color paste mixing, some poor storage and compatibility will still occur in actual use, thus affecting the quality of the color paste. Moreover, the use of imported dispersants will also increase the cost of resin-free colorants, which is not conducive to market competition. Fortunately, this situation has basically been solved in Shanghai Caisheng brand color paste products.
Therefore, the usage of resin-free paint colorants and resin colorants mainly depends on market demand and customer requirements. Currently on the market, resin-free colorants have covered most resin application systems. Some customers only want water-based colorants without resin systems to avoid the incompatibility and potential instability of the system caused by resin-containing colorants. When customers need resin color paste, remember to ask the customer first what resin system they are using. If possible, the resin paste containing the corresponding resin adhesive will be specially formulated for the customer.
Which one is better, resin color paste or resin-free water-based color paste? To put it simply, resin colorants are recommended to be used with a suitable resin system. Resin-free colorants are more versatile and can be used in a variety of resin systems. Different customers may have different views on them, but one thing needs to be kept in mind: color paste pre-sales service must be done well, and customer needs must be understood clearly first. <br /
