Hello, yes price for resin or silicon is not small. Stepan makes forms of very quality silicon, Sherman  form set  weighs 12 kg and production is max 25 conversions/ form set.  For example Panther conversion - only  hull form is 15 kg silicon ,  all resin parts are produced in vacuum casting machine. Master model creates CNC milling machine.,t<span c="4" pc="null" closure_uid_9e4x8a="258" a="undefined" class="short_text" lang="en" id="result_box"><span pc="null" closure_uid_9e4x8a="945" class="hps">his production</span> <span pc="null" closure_uid_9e4x8a="946" class="hps">is</span> <span pc="null" closure_uid_9e4x8a="947" class="hps">generally</span> <span pc="null" closure_uid_9e4x8a="948" class="hps">expensive</span> <span pc="null" closure_uid_9e4x8a="949" class="hps">thing.</span></span>