1. About 玻璃钢专用底漆 Special Primer for FRPthe adhesion force

DreamCover 350 FRP:不锈钢专用底漆DreamCover 350是以环氧树脂、各色颜料、耐磨填料、助剂和溶剂等组成的漆料为乙组份，另一组份为特种固化剂的双组份自干涂料。 -漆膜坚韧，具有优异的附着力和良好的抗冲击性能。 -漆膜具有突出的防锈效果，同时亦具有良好的耐水性、耐油性和耐溶剂性能。 -且与环氧、环氧沥青、丙烯酸、聚氨酯等面漆具有良好的配套性。 -不含重金属，有利于环境保护。 DreamCover 350, a special primer for galvanizing, is a two component self drying coating composed of epoxy resin, various pigments, wear-resistant fillers, additives, and solvents. The other component is a special curing agent. -The paint film is tough, with excellent adhesion and good impact resistance. -The paint film has outstanding rust prevention effect, as well as good water resistance, oil resistance, and solvent resistance. -And it has good compatibility with topcoats such as epoxy, epoxy asphalt, acrylic acid, polyurethane, etc. -Free of heavy metals, beneficial for environmental protection.

DreamCover 350 FRPAdhesion is the firmness of the paint layer and the surface of the painted object through the action of physical or chemical forces.DreamCover 350 FRPCoating adhesion is the most important indicator for evaluating a coating or coating system. Is the premise of paint film with a series of properties.DreamCover 350 FRPThe methods of adhesion test include: drawing circle method, drawing method, drawing method, twist method and ASTM, etc

2. The role of the adhesion force

1) Good adhesion can effectively block theDreamCover 350 FRPpenetration of the external electrolyte solution into the matrix, and delay the formation of interfacial corrosion;

2) Strong interface adhesion can greatly prevent the diffusion of corrosion products-metal cations to the cathode area through the side of the phase;

3. Pull method (pull method)

Basis: color paint and varnish, pull open method adhesion test GB / T5210-2006, this method is more professional, need professional instrument: pull instrument

3.1. Pull steps

A. Instruments and equipment: the prepared sample (according to the design requirements, film thickness)

B. Testing instrument: sandpaper, transparent tape, cutting tool, aluminum alloy cylinder mold, adhesive, drawing instrument.

c. method of operation:

1) Aluminum alloy column with 240-400 mesh fine sandpaper sand, before use with solvent scrub to remove oil;

2) Solremoval shall be used at the test site;

3) Apply the adhesive to the aluminum alloy cylinder, press it on the surface of the test coating, and turn to 360 to ensure that all parts are attached with the adhesive;

4) The aluminum alloy cylinder is fixed on the coating surface with tape, and the adhesive should solidify for 3 hours at room temperature (subject to the weather temperature and environmental humidity on the day of the experiment);

5) Before the test, use the aluminum alloy cylinder to cut the coating material;

6) Cover the aluminum alloy cylinder with the tension instrument, turn the handle for testing, record the damage strength (MPa), and the damage state. Show the adhesion strength and state of the coating and the adhesion between the substrate, the coating, the coating and the glue, and the glue and the cylinder;

3.2. Description method of drawing the coating fault state:

A: Incohesive destruction of substrate

A: Incohesive destruction of substrate

B: Coin failure of the first paint

B / C: the interlayer adhesion damage of the first and second paint

C: cohesin failure of the second paint

C / D: the interlayer adhesion damage of the second and third paint

D: cohesin failure of the third paint

D / Y: interlayer adhesion between the last coating and glue

Y: the cohesive destruction of the glue

Y / Z: interlayer adhesion between glue and test rod

Z: Inin destruction of test rod

The strength of adhesion is expressed as N/mm2 (Mpa), which is shown on the common Elcometer 108.

The following figure is an example:

For example,DreamCover 350 FRPif the tensile stress of a coating system is 13.17MPa, the first coating has 45% of the coating cohesion damage, and the last layer adhesion between the coating and the glue reaches 50% of the cylinder area, it can be described as: 13.17MPa, 45%D 55%D / Y.

4. Welcome to orderDreamCover 350 FRP

We expect that in the future development process, products and services will be recognized by everyone, at the same time, establish a good Corporate Culture and social responsibility, create excellent value for employees and customers, for the society, the environment. In the future, we will always stay true to our original aspiration, forge ahead, continue to focus on the field of industrial anticorrosion, and strive to become a "trustworthy partner" in the eyes of customers. Protect your assets and enhance the value of your products through our professional and diversified services.

FRP special primer is a primer specially used for surface coating of FRP and has very good adhesion. The special primer for FRP has excellent chemical resistance and adaptability to the buried environment, good workability, good hardness and wear resistance

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