The role of chemistry

External effects can damage the transport system, especially the wheels. Basically we distinguish between two types of adverse chemical influences:

  1. Contact with chemical substances in accordance with the regulations.
  2. Environmental influences of fluid or gas that prevail at the place of use.

Both these influences can adversely effect not only the overall performance of the castor or wheel, but also the individual components of the assembly, in the form of corrosion, surface changes, loss of strength, embrittlement and degradation of the lubricant properties. Castors that will be used in such problematic environments must have the suitability of their components such as housing, wheel hub, and tyres checked. Not only time in contact, the concentration of the aggressive chemical substances, but also the humidity and the temperature are factors that influence chemical resistance. The information in the following tables can be used as a guide. The values given are not valid for chemical mixtures.

 

Table key

++ resistance

+ conditional resistance

= not resistant, no information

This table is not mandatory.

Material Concentration Rubber Polyamide Polyurethane
A        
Abwässer   +    
Acetaldehyd 40% + + =
Aceton   ++ =  
Acethylen   ++ ++  
Acrylsäure > 30 °C   =    
Alkylbenzole        
Alkylalkohol   + =  
Aluminiumacetat        
Ameisensäure 0% + = =
Amine, aliphatisch        
Aminosäure-Gemische        
Apfelsäure   +    
Ammoniak, flüssig 20% ++ ++ =
Ammoniumsalze        
Ammoniumbicarbonat        
Ammoniumrhodanid        
Ammoniumhydroxyd        
Ammoniumcarbonat   =    
Ammoniumnitrat   ++    
Ammoniumsulfat   ++    
Amylacetat   ++ =  
Amylalkohol   ++ +  
Anilin   + =  
Antrachinon, 85% C        
Äthanolamin        
Äther   ++    
Äthylacetat   ++ =  
Äthylalkohol   + ++  
Äthylen        
Ätzkali        
Ätznatron        
         
B        
Bariumsalze   + ++  
Baumwollsaatöl        
Benzin, Petroläther   ++ ++  
Bier   ++ ++  
Bitumen   ++ ++  
Bleiacetat, wässrig 0% ++ ++ ++
Bleinitrat   ++    
Borax   ++    
Borsäure, wässrig 0% ++ + ++
Brom   = =  
Butter   ++ ++  
Butan   ++ ++  
         
C        
Casein        
Carbolineum   ++ =  
Chlor, Chlorwasser   = =  
Chromsäure, wässrig 10% = + +
Citronensäure, wässrig 0% ++ ++  
Citrus-Öle        
Clophen   =    
Cobaltsalze, wässrig 20% +    
Cyclohexanol   ++ +  
         
D        
Diäthylenglykol   ++ ++  
Dichlorbenzol   ++ =  
Dichlorbutylen   =    
Dimethyläther   ++ ++  
Dimethylanilin        
Dimethylformamid   ++ =  
Diphyl, 80 °C   =    
         
E        
Edelgase        
Eisessig   =    
Eisenchlorid, sauer 10% + = +
Eisensulfat        
Entkalker, wässrig 10% ++    
Erdöl   ++ ++  
Essigsäure 30% = ++ =
         
F        
Fettsäuren   ++    
Fichtennadelöl   ++    
Fluor   = =  
Formaldehyd 30% ++ ++ +
Formamid, rein   ++ +  
Furfurol   =    
         
G        
Gelatone        
Glukose   ++    
Glycerin   ++ ++  
Glykol   + +  
         
H        
Harnsäure, wässrig 10% ++ ++  
Hexan   ++ ++  
Hydraulikflüssigkeiten   ++ =  
         
I        
Isopropylchlorid   =    
Isopropyläther   ++    
         
J        
Jodtinktur   = =  
         
K        
Kaliumchlorid 10% + ++ ++
Kaliumcyanid        
Kaliumhydroxyd   =    
Kaliumsulfat   ++    
Kalziumsalze        
Königswasser   = =  
Kohlenmonoxyd, heiß   =    
Kohlensäure        
Kokosnussöl   ++ ++  
Kresole   ++    
Kupferchlorid   ++    
Kupfersalze, wässrig 10% = ++  
Kupfersulfat   + ++  
         
L        
Leim        
         
M        
Mangansalze 10% +    
Magnesiumsalze, wäss. 10% ++ ++  
Methylalkohol   + ++  
Methylenchlorid   = =  
Methyläthylketon   ++ =  
Methylpyrolidon        
Milch   ++ ++  
Milchsäuren   = =  
Mineralöle   ++ ++  
Mörtel, Zemente, Kalk   ++    
Monobrombenzol   =    
         
N        
Naphtalin   ++ =  
Natronlauge 50% ++ +  
Natriumchlorid, wässrig 10% + = ++
Natriumcyanid, wässrig 10% ++ =  
Natriumhydroxyd, wässrig 10% =    
Natriumcarbonat, wässrig 10% ++ =  
Natriumnitrat, wässrig 10% ++ ++ ++
Natriumphosphat, wässrig 10% ++ ++ ++
Natriumsilikat, wässrig 10% ++ ++ +
Natriumsulfat, wässrig 10% ++ ++ ++
Natriumsulfid, wässrig 10% + ++ +
Natriumthiosulfat, wässrig 10% ++ ++ +
Nickelchlorid, wässrig 10% ++ + ++
Nickelsalze, wässrig 10% + ++  
Nickelsulfat, wässrig 10% + + ++
         
O        
Ölsäure   ++ ++  
Oxalsäure, wässrig 10% +    
Ozon   + ++  
         
P        
Palmitinsäure   ++ =  
Paraffin   ++ ++  
Pflanzliche Öle   ++ ++  
Phenyläthyläther   ++    
Phenylbenzol   =    
Phosphorsäure, wässrig 10% + =  
Propan   ++ ++  
Propylalkohol        
         
Q        
Quecksilber   ++ ++  
Quecksilberchlorid   ++    
         
R        
Rauchgas        
Rizinusöl        
         
S        
Salzsäure, wässrig 30% + = =
Schwefelige Säure   + =  
Senf        
Silbernitrat   ++    
Sodalösung, wässrig 10% ++ ++  
Streusalz (-lösungen)        
Stearinsäure   ++ =  
         
T        
Tanninsäure 10% ++    
Terpentinöl   ++ +  
Tetrachlorkohlenstoff   ++ =  
Tinte, Tusche   ++ ++  
Trichloräthylen   + =  
Toluol   ++ =  
         
U        
Uranfluoride        
Urin   ++    
         
V        
Vaseline        
Vinylchlorid, 80 °C        
         
W        
Wachs, 80 °C        
Waschlaugen, 80 °C   ++    
Wasser, kalt   ++ ++  
Wasser, 80 °C   ++ =  
Wasser (Seewasser)   ++ +  
Weinsäure, wässrig 10% ++ ++ +
         
X        
Xylol   ++ =  
         
Z        
Zinkchlorid, wässrig 10% ++ + =
Zinkrhodanid 30% =