Addition of 1% diluant to the readily prepared siliconemixture ( base + hardner ) decreases the Shorehardnes by 1 to 1.5 points.
Maximum addition : 10 % ( allows you to bring Shore from 25 (= strong rubber) to 10 ( = more flexible rubber ).
This means you no longer need different siliconerubbers with different Shorevalues . Just one with a relative high Shorevalue is enough; the diluant takes care of the lower shorevalues simply by adding it to the already mixed silicone-hardnermixture.