Product overview of VESTOSINT® polyamide 12 powders

VESTOSINT® coating powders manufactured from the base polymer with technically challenging processes affords various physical, chemical and electrical properties that make it perfect for a broad spectrum of applications:


- good bonding to metals 
- high impact strength
- high mechanical strength, elasticity, and surface hardness
- ow water uptake and water-vapor permeability
- good resistance to water, even hot or detergent-containing water
- low thermal conductivity
- good electrical insulation and dielectric strength
- compliance with food law requirements
- ease of cleaning
- absence of bacterial growth


VESTOSINT® coated surfaces retain these properties even at temperatures well below zero. 


In addition to these considerable practical advantages, the coated metals also have an attractive appearance. More than 1,500 color formulations are available for VESTOSINT® fluidized-bed powders, and special colors can be provided on request. Metallic-effect colors are particularly worth mentioning; they are permanently colorfast even in contact with water.
 
We designate as fine powders those polyamide 12 powders with a particle size of less than 100 µm. VESTOSINT® fine powders were being used as coating additives as long ago as 1980. They are also excellently suited for production of thermoplastic composite materials from glass, carbon, aramid, or steel fibers, as well as for minicoating and electrostatic flame-spray processes.
Coatings
Various particle sizes and particle-size distributions of VESTOSINT® fine powders can be used individually or in mixtures. Our customers can take advantage of this for very precise fine-tuning of surface structure, with the polyamide powder being incorporated into the coating system via functional groups. This results in hard-wearing and highly elastic coatings on a wide variety of substrates. VESTOSINT® fine powders serve, for example, as matting or texturing agents, bringing about the following improvements:
- increased wear resistance
- increased elasticity
- reduced dirt uptake
- reduced friction
- They are used
- in the coil-coating process
- in textured coatings
- in wood paints
- in coatings for rubber surfaces
- in coatings for packaging foils
Composites
VESTOSINT® fine powders are also excellently suited for producing thermoplastic composite materials with fibers of glass, carbon, aramid, or steel. Unlike thermosets, these materials can be remelted and remolded. They can be wrapped, pressed, laminated, or woven, and are used in the construction sector and the aviation, automotive, and offshore industries.
 

Overview of the various VESTOSINT® powder grades and their application fields
VESTOSINT® GRADE
d50 [μm]
APPLICATION FIELDS
COMMENTS
 
 
Coating Powder
Fine Powder
 
Fluidized Bed Coating
Minicoating
Flame Spray Process
Paint
Composites
1101
white
100
 
 
 
 
 
1111
natural color
90
 
 
base for colored powders *)
1111
colored
90
 
 
 
1121
colored
100
 
 
 
base for colored powders *)
1141
white
100
 
 
 
base for colored powders *)
1141
colored
100
 
 
 
 
1161
white
100
 
 
 
 
high covering powder
1164
white
55
 
 
 
 
1184
white
50
 
 
 
 
 
1301
white
100
 
 
 
low-viscosity, flowable, for parts with large surface areas
2070
natural color
6
 
 
 
 
 
2155
natural color
64
 
 
 
2157
natural color
56
 
 
2158
natural color
21
 
 
 
 
 
2159
natural color
11
 
 
 
 
2161
natural color
28
 
 
 
 
 
2162
natural color
45
 
 
 
 
 
2178
white
20
 
 
 
 
 
*) ca. 1500 existing color formulations, special color tones upon request.
Handling and logistics
VESTOSINT® powders are available in a range of particle-size fractions to suit a number of different processing methods. The particle size upper limit is 250 µm.  The product is supplied 

- in bags with 20 kg net weight or - octabins with 800 kg net weight.


A shipping unit consists of a pallet with 50 bags or a single octabin.  


When stored protected from weathering effects, the shelf life is at least two years from the date of manufacture provided that the packaging is not damaged or opened. The storage temperature should not exceed 45°C. The product should be used for processing on a "first in, first out" basis.