Cheap foam pads take a compression set within months — the seal goes flat, dust and water creep in, and field returns follow.
Low compression-set foam grades (PORON-class urethane, silicone foam) die-cut to your geometry, with compression-force-deflection matched to your enclosure design.
Not sure which grade fits? Send us your application — our engineer replies with a selection proposal within 24 hours.
Custom die-cut foam gaskets and cushions from PORON urethane, EVA, EPDM and silicone foam — dust sealing, water sealing, drop protection and compression set control.
Foam is the invisible part that decides whether your enclosure stays sealed after two years of use. ROTADIE die-cuts sealing and cushioning foams matched to your compression targets — not just the cheapest black sheet we have. Send us the gap dimension, expected closing force and environment, and we will propose the right foam family with sample pads for your test.
| Foam types | PORON-class urethane, EVA, EPDM, CR, silicone foam |
|---|---|
| Thickness range | 0.5 – 10 mm |
| Density | 45 – 450 kg/m³ (per grade) |
| Compression set | <2% – <10% (per grade) |
| Temperature range | -60°C to +200°C (silicone foam) |
| Adhesive lamination | Single / double sided |
| Cutting tolerance | ±0.15 mm typical |
| MOQ | 1 prototype run |
Specification values are typical reference values. Final values are subject to the grade datasheet and test report.
① Define the application — describe the device, the function of the part and the environment it works in.
② Send the drawing — DXF / PDF / STEP, or a dimensioned sketch with tolerances marked.
③ Confirm quantities — prototype quantity and estimated annual volume.
④ Review the proposal — we reply with material options, unit price and tooling cost within 24 hours.
⑤ Sample & validate — typical parts sampled in 3–5 working days (quoted per drawing), then mass production after your approval.
Custom die-cut double-sided adhesive gaskets and pads — 3M, Nitto, tesa and equivalent tapes converted to your exact drawing with tight tolerance, from prototype to mass production.
Precision die-cut electrical insulation films and fire barriers — PI (Kapton-class), PET, aramid paper and composite barrier materials for batteries, PCBs and power modules.
Die-cut EMI/EMC gaskets and shielding materials — electrically conductive foam, conductive fabric, copper/aluminum foil laminates — for enclosure sealing and board-level shielding.
Compression set is the number-one silent killer of foam seals. What it is, how to read the datasheet, and which foam families keep their seal force long-term.
Engineer reply within 48 hours — free sampling support.
