High-Purity PTFE Hotplate Vial Holder Rack, Custom-Fit Heat Distribution Block for PFA Digestion Vials and Beakers

High-Purity PTFE Hotplate Vial Holder Rack, Custom-Fit Heat Distribution Block for PFA Digestion Vials and Beakers. METAL-FREE & ACID-PROOF: Crafted from 100% pure virgin PTFE, eliminating rust, corrosion, and trace metal contamination in ultra-clean heating environments. CUSTOMIZABLE APERTURES: Machined-to-order holes engineered specifically to fit your exact PFA vial diameters and depths for a stable, snug fit. ANTI-TIP & SPILL PROTECTION: Heavy-duty, solid PTFE structure securely holds light PFA vials upright, preventing accidental tipping, acid spills, and sample loss on hotplates. EXTREME CHEMICAL TOLERANCE: Completely inert to boiling hydrofluoric acid (HF), aqua regia, nitric acid, and organic solvents across temperatures up to +260 Celsius Degree. PROTECTIVE HEAT SHIELDING: Acts as a stable, heat-resistant positioning base on inert hotplates, protecting delicate PFA vials from physical instability.