Non-silicone thermal pads

A non-silicone (silicone-free) thermal pad uses an alternative polymer matrix — typically olefin-based or acrylic — loaded with thermally conductive ceramic fillers. It serves the same role as a silicone gap pad: bridging surface irregularities and mixed bondline heights between a heat source and a heatsink, with repeatable assembly and easy rework. The key trade-off is suitability for environments where low molecular volatile (LMV) outgassing matters — optics, sensors, hermetically sealed enclosures, and aerospace electronics.

Pick a non-silicone pad when even trace silicone migration would cause failures: optical surfaces that fog with siloxane condensate, capacitive touch sensors, MEMS micro-mirrors, or relays whose contacts can be poisoned by D4/D5/D6. Aerospace and medical assemblies that specify low TML/CVCM also benefit. For all other consumer and industrial designs where outgassing is not a concern, silicone TIF pads are typically more cost-effective at the same λ.

Z-Paster ships in three Shore 00 hardness grades: S (Soft) ≈ 50, F (Firm) ≈ 65, and UF (Ultra-Firm) ≈ 75. Soft grades conform to highly uneven mating surfaces at low clamp pressure; firm grades hold their thickness under heavier loads and resist creep; ultra-firm grades suit stack-ups where a precise gap height must persist across hundreds of thermal cycles. Match grade to clamp pressure and gap-tolerance budget — your applications engineer can advise.

Yes — silicone-free composition is the primary reason customers specify Z-Paster for camera modules, LiDAR, and laser diode assemblies. The pads do not release siloxane vapors that would otherwise condense on lenses or beam-splitters under thermal cycling. Confirm the specific TML/CVCM values against your hardware's outgassing budget; the F-series datasheet lists the standardized values.

Yes. Ziitek's tool room die-cuts Z-Paster sheets to any 2-D outline (rectangles, L-shapes, holes, pick-and-place tabs) at ±0.1 mm tolerance on production tools. Send a DXF or STEP drawing; sample parts typically ship within five working days. Sheet stock is also available in standard formats.

Z-Paster grades on this page run continuously between −40 °C and 150 °C. Short-term excursions to 175 °C are tolerated by select grades. Above 150 °C continuous, a silicone gap pad (TIF series) typically becomes the better choice on cost-per-watt-removed grounds.