Standard Compounds
All Trowal standard compounds (highlighted in the adjoining table) have three main capabilities:
- corrosion protection
- cleaning capabilities
- degreasing capabilities
The individual Trowal products are characterized by having one or more of these capabilities to a higher or lesser degree.

Special Compounds
For special applications, where acid resistance, a minimum of foam or pickling capabilities are required, Trowal offers special compounds, containing these additional characteristics.

The right process

Trowal offers three polishing systems which differ in cost and the desired surface finish:

The Trowapast process
It is mainly used for high-lustre polish of rough and harder surfaces (steel, stainless steel, brass). Processing time lasts several hours. The powder concentrate to be used depends on the original surface roughness and the alloy of the work pieces.

Ball burnishing
This quick an economical polishing process yields a decorative lustre on aluminium and zinc diecastings as well as on brass and stainless steel parts. For ball burnishing applications only steel media (balls, satellites, ball cones, etc.) are utilized:
GB 13   light pickling, much foam
AWS      light pickling, little foam
PL 84    pH-neutral, much foam

Powder compounds

Grinding Support
Powder compounds are added to the finishing process to increase the grinding efficiency. They also help to clean "glazed" chips to re-establish their grinding capabilities:
9A  for cleaning grinding chips
3A  mixture of minerals for cleaning
VS  grinding support produces cmooth surfaces on parts

Turbo degreasing
With very difficult degreasing problems, it is helpful to add degreasing powder at the start of the finishing process (shock degreasing):
K5    intensive degreasing, much foam
K96  adequate degreasing, little foam

Pickling Compounds
Instead of the liquid pickling compound LZ 11 an easy to handle powder can be utilized: Z1, very acidic, for pickling, descaling and de-rusting

Cleaning of process water
After the mass finishing process, the process ater contains chip and metal abrasion, in many cases oil too. No matter whether the water is recycled or goes directly to drain, it must be cleaned beforehand. For discharging the process water to drain, the contents of other pollutants (CSB, metals), must be reduced, too.


Flocculants for loss technolgy

Liquid flocculants
For fully automatic flocculation systems (GA.., DO..), liquid flocculants are recommended, which are easy to dose:
- LAC  cancels the effect of tensides and forms micro-flakes
- F        enlarges the flakes and purifies the water

Powder flocculants
In manual flocculation systems, powder simplifies the handling:
- ESM   specially suited for oil-containing water
- ESB   more economic, for oil-free water


Flocculants for recycling technology

To obtain clear water in recycling systems, special flocculants must be usede together with ESM:

- ESM  powder for oil-containing water with little abrasion
- ESO  powder as fiber to  put weight on the flakes
- V   liquid for oil-free recirculations with compound KS 66
- R   liquid for oil-containing recirculations with compoundDE 97

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