Versatile Dynamic density of rubber in kg m3 - Alibababa.com
Sponge silicone sheeting
Amazon.com: EVA Foam Cosplay - 2mm Thick (1mm to 10mm) - Extra Large Foam Sheets - White or Black - 35" x 59" Sheet - Ultra High Density Craft Foam 85 kg/m3 - by The Foamory
Firm Silicone Sponge | AMS3196 | National Silicone