Internal and
external Lubri­cants

Advantages

  • Excellent processibility
  • Excellent dispersibility

Lubricants are divided into two areas, internal and external lubricants. The transition between external and internal lubricating effect is fluid, however, – internal lubricants often also have a certain external lubrication effect and vice versa. Lubricants having both effects are therefore called “combined lubricants”.

Internal lubricants reduce the frictional forces occurring between the PVC molecule chains, thus reducing melt viscosity. They are polar and thus are highly compatible with PVC. They help achieve excellent transparency even at high dosages and do not tend to exudate, which helps optimizing welding, gluing, and printing properties of the final product.

External lubricants reduce the adhesion between PVC and metal surfaces. They are mostly non-polar such as paraffin and polyethylene waxes. The external lubrication effect is largely determined by the length of the hydrocarbon chain, its branching and its functional group. At high dosages they can lead to cloudiness and exudation.

Applications

Type 

BAEROLUB

Chemical composition

Physical form

Melting [°C]

Lubrication

Solid fatty esters

L-MS

Glycerol partial ester of sturated fatty acids (glyceryl monostearate approx. 40 %)

Powder

56 - 62

Internal

Solid fatty esters

L-CD

Glycerol ester of sturated fatty acids (Castor oil, hydrogenated)

Powder

84 - 88

Internal

Solid fatty esters

GTS

Glycerol ester of sturated fatty acids

Powder

50 - 54

Combined

Solid fatty esters

L-TP

Fatty alcohol phtalate

Powder

46 - 50

Internal

Solid fatty esters

L-PM

Fatty acid ester wax

Powder

52 - 55

Combined

Solid fatty esters

A275

Fatty acid complex ester and fatty acid Calcium soap

Powder
Pellets

125 - 135

Combined

Solid fatty esters

43C

Fatty acid complex ester

Powder Pellets

59 - 65

Combined

Solid fatty esters

LS100

Fatty acid complex ester

Powder Pellets

58 - 65

Combined

Liquid fatty acid esters

L-PL

Glycerol partial ester of unsaturated fatty
acids (glyceryl mono/dioleate)

Liquid

liquid at room temp.

Internal

Liquid fatty acid esters

L-PK

Fatty acid ester

Liquid

liquid at room temp.

Combined

Solid hydrocarbons

L-KO

Synthetic paraffin wax

Powder

100 - 105

External

Solid hydrocarbons

L-KM

Paraffin wax

Powder

54 - 56

External

Solid hydrocarbons

PA-L

Polyethylene wax

Powder

102 - 110

External

Solid fatty acids, alcohol and amide

FTA

Mixture of fatty acids

Powder

54 - 60

External

Solid fatty acids, alcohol and amide

FTO

Mixture of hydroxy fatty acids

Powder

70 - 80

External

Solid fatty acids, alcohol and amide

L-OH

Mixture of fatty alcohols 

Powder

52 - 54

Internal

Solid fatty acids, alcohol and amide

L-AK

Amide wax (N,N'-ethylene distearamide)

Powder

138 - 144

External

Metal soaps

Ceasit SW/PA

Calcium stearate

Powder

approx. 160

Internal

Metal soaps

Zincum T

Zinc stearate

Powder

approx. 120

External

Download

download (1 MB)
  •  Powder

    • small particles, high active surface area
    • good dispersability in final applications
    • good compatibility with powder blends
    • medium bulk density