Possible problems and solutions with the use of fluff

F series fluff powder has rubber elasticity, heat resistance, solvent resistance, acid and alkali resistance and scratch resistance. It can be widely used in wood, hardware, leather, plastic, shoe materials and other flat light, colored soft paint, ink, etc. use. Cooperating with an equal amount of elastic resin, the coating film produces a suede feel. This series of fluff powder can be used in water and oil. Water-based paints should be appropriately increased.

 (1) Not resistant

a, the coating film is too hard: use elastic resin; increase the amount of "688", reduce the amount of "BF", reduce the amount of curing agent.

b, the coating film is too soft: the amount of curing agent is not large, or the curing agent is not well stored or the main agent volatilization causes the coating film to be incompletely cured; increase the amount of "BF" and reduce the amount of "688".

(2) Dry crack:

a, a small amount of thinner to form a dry spray, can be diluted with diluent to the desired spray viscosity.

B, the solvent volatilization is too fast, should increase the amount of high boiling solvent, such as the amount of ethylene glycol ether acetate or use propylene glycol ether acetate or increase the proportion of cyclohexanone in the ratio of release agent.

C. After spraying, it should be dried before being placed in an oven.

D. The spray is too thick, and the film should be controlled to be 30-40um after drying.

E, the proportion of fluff powder and resin is too large, reducing the amount of fluff powder

(3) rough surface

 a, the fluff powder is not completely dispersed. Increase dispersion time and improve dispersion

b, should be filtered to remove a small amount of coarse non-dispersed particles

c, the amount of fluff powder is too large, adjust the dosage.

D, too little solvent, forming a dry spray, should be diluted to the full viscosity

E. The drying speed is too fast. It should be placed on the surface and then placed in an oven or completely dried naturally. The surface is delicate.

(4) Surface fading

a, the fluff powder is seriously disperse

b, uneven spraying

c, the viscosity is not enough, increase the amount of thickener

(5) No velvet

a, the proportion of fluff powder and resin is not enough, increase the amount of fluff powder

b. The coating film is too thick and the solvent evaporates too slowly.

In addition, different substrates, spraying conditions should also be changed accordingly, such as non-absorbent plastic coating surface, the viscosity of the coating should be increased to prevent sagging, the surface of the coated cardboard and other absorbent materials, the viscosity can be adjusted to be less.

Find fluff powder is the first choice for prosperous effect pigments.