Functional Form Cutting Board Set, 3-Piece vs Demarle Silpat Non-Stick Pastry Mat - 400mm x 300mm: which is safer?

Where these two actually differ

• We flag Microplastic shedding from cutting action, Bacterial biofilm accumulation in deep cuts, Staining and odor retention and Heat-induced warping or leaching on the Fiskars and not on the Silpat.
• We flag Silicone degradation at extreme heat, Fiberglass exposure if mat tears and Bacterial growth or mold on the Silpat and not on the Fiskars.
• The Fiskars is Polypropylene or similar plastic; no nonstick or waterproof coating disclosed where the Silpat is Silicone mat with fiberglass reinforcement, which is most of the difference in these two grades.