Poron AquaPro
Grade
also Microcellular Urethane
AquaPro = sealing grade for IP-rated water/dust resistance
Choose for IPX4–IPX7 style gaskets in phones and wearables where thin, low-force water sealing is needed.
Values for the AquaPro condition
Other Poron grades and fills
Poron is listed in 6 conditions; see the grade overview at Poron.
Compare all 6 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
ultra-low CFD grades (e.g. PORON 4790-92-15/-20, EVExtend very soft) | Use where closure force must be minimal — thin-wall plastic housings, OLED module cushions, low-force dust seals. | — | 0.6 | 180 | 10 Shore A |
High strain-rate impact-protection urethane | Rate-sensitive grade that stiffens on impact — used in protective sports/PPE padding and drop protection rather than static gasketing. | — | 0.9 | 180 | 15 Shore A |
Flame-retardant grades | Required for battery packs, power supplies and automotive interiors needing a V-0 or FMVSS 302 rated cushion. | — | 1 | 140 | 22 Shore A |
AquaProThis page Sealing grade for IP-rated water/dust resistance | Choose for IPX4–IPX7 style gaskets in phones and wearables where thin, low-force water sealing is needed. | — | 1 | 150 | 25 Shore A |
Higher-density/firmer microcellular urethane | Pick when the pad must carry higher load or resist thinning under sustained clamp force, e.g. structural standoff and vibration pads. | — | 2 | 140 | 28 Shore A |
highest-density load-bearing grades (e.g. PORON 4701-50, HP firm) | For load spreading, bumpers and vibration isolation pads where deflection must stay small under continuous load. | — | 2 | 120 | 35 Shore A |
What is Poron AquaPro?
Poron AquaPro is Poron in the AquaPro grade — choose for IPX4–IPX7 style gaskets in phones and wearables where thin, low-force water sealing is needed. Poron AquaPro has a tensile strength of 1 MPa (0.189 ksi), weaker than 85% of polymer grades. Elongation at break is 150% and the elastic modulus is 0 GPa (2.9×10⁻⁴ Msi). Poron AquaPro has a density of 0.4 g/cm³ (0.0145 lb/in³), lighter than 84% of polymer grades. Its glass-transition temperature is -35°C (-31 °F).
Advantages
- Forms and bends easily — 88/100, better than 85% of polymer grades
- Lightweight — 0.4 g/cm³ (0.0145 lb/in³), better than 84% of polymer grades
- Easy to machine — 80/100, better than 84% of polymer grades
Limitations
- Low stiffness — 0 GPa (2.9×10⁻⁴ Msi), worse than 95% of polymer grades
- Poor heat conductor — 0.07 W/m·K (0.0376 BTU/hr·ft·°F), worse than 84% of polymer grades
- Absorbs moisture — dry before molding — 1%, worse than 84% of polymer grades
Poron AquaPro properties
Typical room-temperature values for Poron AquaPro; 17 are specific to this condition. Other listed values are Poron reference data and may not represent this condition. Bars are the position among polymer grades.
Physical3
Poron AquaPro has a density of 0.4 g/cm³ (0.0145 lb/in³), lighter than 84% of polymer grades. Its glass-transition temperature is -35°C (-31 °F).
Mechanical9
Poron AquaPro has a tensile strength of 1 MPa (0.189 ksi), weaker than 85% of polymer grades. Elongation at break is 150% and the elastic modulus is 0 GPa (2.9×10⁻⁴ Msi).
Thermal6
Poron AquaPro is rated for continuous service to 90°C (194 °F). It conducts heat at 0.07 W/m·K (0.0376 BTU/hr·ft·°F), worse than 84% of polymer grades.
Electrical2
Chemical & Environmental3
Corrosion resistance is very good (75/100), worse than 66% of polymer grades. UV resistance is fair.
Sustainability3
Producing a kilogram of Poron AquaPro takes about 100 MJ of energy and emits 5 kg of CO₂ — less than 61% of polymer grades. Typical recycled content is 0%.
Manufacturability2
Poron AquaPro's machinability is very good (80/100, better than 84% of polymer grades); formability excellent (88/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Poron AquaPro
Is Poron easy to machine?
Convert by steel-rule die, rotary kiss-cut, laser (with fume extraction) or waterjet; avoid conventional milling — the foam tears and compresses under tool load.
Can Poron be welded?
Not weldable; join with acrylic PSA transfer tape, urethane adhesive or mechanical capture in a housing groove.
Can Poron be formed, bent or molded?
Supplied as cast/skived sheet and roll; forms only by compression in the assembly — design for 20–50 % working deflection and avoid >70 % compression to preserve recovery.
What surface finishes work on Poron?
No coating needed; surfaces are as-skived or film/PSA laminated, and can be printed or laminated with PET/PI films for low-friction or shielding layers.
Poron chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| polyester/polyether polyolsoft-segment backbone; ether-type used for hydrolysis-resistant grades | 50 – 70 | 60 |
| diisocyanate (MDI/TDI)hard-segment / crosslinker | 20 – 40 | 30 |
| cell-control additives, surfactants, pigmicrocellular structure control | 2 – 10 | 5 |
| flame retardant (FR grades only)present only in UL 94 V-0 variants | 0 – 15 | 8 |
Poron AquaPro — frequently asked
What is Poron AquaPro used for?
Poron AquaPro is typically used for electronic enclosure sealing gaskets, vibration and shock dampers, display and touchscreen cushions, wearable device skin-contact padding, impact padding in protective gear and battery pack compression pads. In short: cushioning microcellular urethane.
What is the tensile strength of Poron AquaPro?
Poron AquaPro has a typical tensile strength of 1 MPa (0.189 ksi) — weaker than 85% of polymer grades. Strength varies by condition: see the 6 listed tempers.
Is Poron AquaPro easy to machine?
Yes — machinability is rated very good (80/100, better than 84% of polymer grades). Convert by steel-rule die, rotary kiss-cut, laser (with fume extraction) or waterjet; avoid conventional milling — the foam tears and compresses under tool load.
Can Poron AquaPro be welded?
Not weldable; join with acrylic PSA transfer tape, urethane adhesive or mechanical capture in a housing groove.
What surface finishes work on Poron AquaPro?
No coating needed; surfaces are as-skived or film/PSA laminated, and can be printed or laminated with PET/PI films for low-friction or shielding layers.
Can Poron AquaPro be formed, bent or molded?
Supplied as cast/skived sheet and roll; forms only by compression in the assembly — design for 20–50 % working deflection and avoid >70 % compression to preserve recovery.
What is the maximum service temperature of Poron AquaPro?
Poron AquaPro is rated for continuous use to about 90°C (194 °F), and briefly to 120°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Can FabDigit make parts in Poron AquaPro?
Yes — Poron AquaPro is available for injection molding; every part is priced by an engineer rather than instantly. Upload a STEP file to get a price and a DFM check.
Sources
- PORON Microcellular Urethane Product Data (4701 / 4790 series, AquaPro, XRD) — Rogers Corporation (2023)
- ASTM D1056 — Flexible Cellular Materials, Sponge or Expanded Rubber — ASTM (2020)
- ASTM D3574 — Flexible Cellular Materials, Slab, Bonded and Molded Urethane Foams — ASTM (2017)
- UL 94 — Tests for Flammability of Plastic Materials — UL (2020)
- Polyurethane Handbook (structure–property data for microcellular elastomers) — Hanser (1994)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.