Commonly used types of mold inhibitors – parabens

Parabens
The strongest effect on mold and yeast. Parabens will affect the effect of coexistence with starch, should pay attention when using.

Diffusion type antifouling paint
This kind of antifouling paint is composed of synthetic resin, cuprous oxide and organic tin composite antifouling paint. The organic tin antifouling agent and synthetic resin form a solid solution. The antifouling agent is evenly dispersed in the paint film. The antifouling agent on the surface of the paint film Through the diffusion of molecules into the seawater, the antifouling agent in the bottom layer continues to diffuse up. This type of antifouling paint uses a composite antifouling agent, which is effective for plant and animal fouling organisms. It is a broad-spectrum antifouling paint. The general antifouling period is 2 to 3 years, and individual products can reach 4 to 5 wax emulsion msds However, this type of antifouling coating has the problem of increased surface roughness of the later coating.

Sometimes contact type and diffusion type antifouling coatings are collectively referred to as base-insoluble antifouling coatings.
Principle of antifouling agent exudation of base-insoluble antifouling coating
Self-polishing antifouling paint is divided into tin self-polishing antifouling paint and tin-free self-polishing antifouling paint.

Tin self-polishing antifouling paint
This type of coating was developed in the late 1970s and was widely used in the 1980s. It can be said to be a revolution in the history of antifouling coatings.
This type of anti-fouling paint is based on a hydrolyzable organotin acrylate copolymer, and cuprous oxide is an anti-fouling agent. The paint is hydrolyzed on the side chain of the polymer’s organotin ester in seawater, releasing organotin and cuprous oxide antifouling agent, and the remaining polymer skeleton is water-soluble due to the hydrophilic group, due to the movement of the hull Or the scouring of seawater, the hydrophilic polymer is dissolved in the seawater, the surface coating in contact with the seawater falls off, and the fresh surface is exposed. The advantage of the self-polishing antifouling paint is that it continuously and stably releases the antifouling agent. And the surface of the coating has been kept smooth, the friction resistance is small, and it has the dual functions of anti-fouling and self-polishing.