Mirko has said here and in other places that Silvermax is only available in 35mm due to the base film thickness and availability of the same. Adox had aquired several rolls of film base from Agfa at the time of its insolvency. Silvermax was coated at Inoviscoat on that film base that is only suitable for certain formats, not for 120. Silvermax was created by former Agfa employees now working for Fotoimpex/Adox basing the new film on the APX100/Scala films. That's why they are similar.In case the Silvermax is actually the same as Scala then most probably only 35mm raw stock is still around.