1 / 2PORON PU Foam
Rogers PORON polyurethane foam sheets and rolls, with adhesive backing and custom die-cut gasket options from ALS Tape. Send the grade, thickness, drawing and target quantity for a material and converting review.
Material Type
PORON microcellular polyurethane (PU) — Rogers Corporation
Modulus Range
Grade-dependent; check Rogers data sheets for compression force at the required thickness
Thickness Range
Grade-dependent; confirm the selected 4701 formulation and available thickness
Flame Standards
Grade- and thickness-dependent; verify the required UL or automotive rating
Overview
ALS Tape supplies Rogers PORON microcellular polyurethane foam as sheets or rolls and converts selected grades into adhesive-backed, die-cut gaskets and cushioning parts. Grade and thickness should be chosen together: Rogers lists different density, compression-force and thickness combinations for 4701-30 and 4701-40. For example, its 4701-40 data sheet lists a maximum compression set of 10% at 70°C under the stated test method; this is not a single value for every PORON grade. The same sheet reports measurable outgassing under ASTM E595, so optical or electronic applications should be assessed against the specified grade and assembly requirements. Send the part drawing, required thickness, compression gap, adhesive preference and quantity; die-cut parts generally start from 100 pieces, subject to material and geometry.
Category Focus
Rogers Materials
Rogers PORON microcellular PU foam and BISCO silicone for precision sealing, cushioning, and thermal management.
What to expect when you order
- Minimum order
- 1 roll of standard material; die-cut parts from 100 pcs
- Samples
- Stock material samples are free; custom die-cut samples take 3–9 days and are quoted per part
- Production lead time
- 2–14 days after the order and drawing are confirmed
- Cutting tolerance
- ±0.05–0.2 mm on cut outlines, depending on material and thickness
- Material proof
- Photos of the original roll labels with batch numbers; CoC or CoA on request
- Shipping
- FOB or DDP (duties included). To the US: air about 7 days, sea about 45 days
Send the grade, thickness and a drawing or sample. A business manager replies within 24 hours.
Request a quoteKey Features
Grade-specific recovery: Rogers publishes compression-set values by formulation and test condition; select the grade against the required sealing force and service environment.
Documented outgassing: Rogers reports ASTM E595 results for 4701-40. Review the actual grade and application limits instead of assuming zero outgassing or zero fogging.
Flammability varies by grade and thickness: confirm the required UL or automotive rating against the selected product data sheet.
Density, thickness and compression force are linked: a single 2–90 psi range cannot describe every available thickness or formulation.
Sheet, roll and die-cut formats: ALS Tape can review drawings for adhesive-backed gaskets, cushioning pads and assembly-ready parts.
Die-Cuts Cleanly — Compatible with precision die-cutting, works with a broad range of adhesive bonding systems, and supports laminated adhesive constructions for direct assembly use.
Applications
Electronic and industrial equipment enclosure gasketing and environmental sealing
Precision instrument cushioning and vibration isolation in sensitive device assemblies
Optical and electronic enclosure gaskets where grade-specific outgassing data must be reviewed
Automotive and industrial equipment dust seals, shock mounts, and compression pads
LED and display module sealing and light-blocking gaskets
Die-cut adhesive-backed gaskets and seals for assembly-line direct integration
FAQ
What makes PORON foam different from standard urethane foam?
PORON is a family of microcellular polyurethane foams. Rogers publishes grade-specific density, thickness, compression-force and compression-set data. Compare the selected PORON grade with a conventional foam using the same test conditions and the compression gap in your assembly.
What is the compression set performance of PORON foam?
Compression set is not one fixed number for every PORON grade. For example, Rogers lists a maximum of 10% at 70°C for 4701-40 grades in its product data sheet. Specify the grade and test condition when comparing materials.
Does PORON foam meet UL or other flame retardancy standards?
Flammability ratings depend on formulation and thickness. Confirm the relevant UL or automotive requirement against the exact Rogers grade and its current data sheet before specifying a part.
What thickness range is available for PORON foam?
Available thickness depends on grade and density. For example, Rogers lists 4701-30 and 4701-40 in different density/thickness combinations. Send the intended compression gap and target thickness so ALS Tape can check a suitable format.
Can PORON foam be die-cut into custom gasket profiles?
Yes. ALS Tape can review a drawing for die-cut PORON gaskets and adhesive-backed parts. Send a DWG, DXF or dimensioned PDF with grade or performance requirements, thickness, adhesive preference and target quantity. Material availability, tooling and tolerance are confirmed in the quote.
Is PORON suitable for use in optical or precision instrument enclosures?
PORON grades may be suitable for optical or precision enclosures, but zero outgassing or fogging cannot be guaranteed for the whole family. Rogers reports measurable ASTM E595 results for 4701-40. Verify the specified grade and test conditions against your assembly requirements.
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