Hollow microspheres used in high temperature powder coating
Hollow microspheres is a new functional fillers, Until Rrcent years, the characteristics of hollow microspheres were only found in the powder coating application and several well-known powder coating company has used it for mass production, customer feedback is very good.
The features is as followed:
The hollow microspheres is a thick hollow body with good fluidity,hardness of Ta Mok’s 5-7, and temperature resistant up to 1400 degrees, with the composition of the aluminum silicate it has excellent anti-corrosion to acid .
Added with hollow microspheres the flow properties of powder coating can be greatly improved,as well as with good flexibility,good feeling.Corrosion resistance and scratch resistance are significantly increased.By adding a certain amount it will have matte finish, can reduce the amount of matting agents greatly which reduce the cost .
The use rate of 5-15% is recommended,the following is the formulations and test data for high temperature powder coating,just for your reference:
|Formula of high temperature powder coating(g)|
high-temperature resistant pigment
|Appearance||Black, micro orange peel|
|Heat resistance||Long time under 450C,short time under 400C
No cracking, bubble, color change
|Acid resistance(5%HCL)||300h no fading, bubble, ecclasis|
|Alkali resistance(5%NaOH)||300h no fading, bubble, ecclasis|