impression materials = age + hearing loss
There is a lot of difference in the various types of impression material. The table below gives an indication of the material to be used per age and the degree of hearing loss. If in doubt, please contact us.
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0-2 years
severe hearing loss
medium viscosity
25-30 shore
slight pressure building
A
A/I
A/II 
A/Soft DMA 50
A/Soft DS 50 
2-12 years
medium hearing loss
medium viscosity
30 shore
slight pressure building
A
A/Soft DMA 50
A/Soft DS 50
heavy hearing loss
high viscosity
30-40 shore
pressure building
A/II
A/II 
12-70 years
mild hearing loss
low viscosity
25-30 shore
non pressure building
A/ITE
A/ITE
medium hearing loss
medium viscosity
30 shore
slight pressure building
A
A/Soft DMA 50
A/Soft DS 50
heavy hearing loss
high viscosity
35-40 shore
pressure building
A/II
A/II
> 80 years
mild/medium hearing loss
low viscosity
25 shore
non pressure building
A/ITE
A/ITE
heavy hearing loss
high viscosity
25-30 shore
pressure building
A
A/I
A/II
A/Soft DMA 50
A/Soft DS 50
burns, frostbite, scar tissue
mild, medium and severe hearing loss
condensation material (because of higher tensile strength)
low viscosity
25 shore
non pressure building
A/II
12-70 years
hearing protectors
medium viscosity
30 shore
slightly pressure building
A
A/Soft DMA 50
A/Soft DS 50
all ages
swimming ear plugs (floating)
various colors
high viscosity
30-40 shore
pressure building
flex S-Pro
Aqua