Polyurethane Foam
PORON® AquaPro Series
Water-sealing polyurethane foam for durable gaskets, seals, and moisture-resistant applications
PORON® AquaPro® Series is a family of microcellular polyurethane foams engineered for enhanced water sealing and long-term reliability. It is a strong option for applications that need dependable sealing performance in environments where moisture, temperature changes, and long-term compression all matter.
With multiple softness levels available, PORON® AquaPro® materials help engineers balance sealing force, conformability, and durability. These materials are well suited for custom gaskets and seals used in electronics, lighting, enclosures, and other demanding assemblies.
Why Choose PORON® AquaPro® Series
- Engineered for enhanced water sealing performance
- Available in multiple softness levels for different sealing-force requirements
- Includes PORON® AquaPro® 4701-37 and PORON® AquaPro® 4701-41 grades
- PORON® AquaPro® 4701-41 offers greater closed-cell content for demanding vacuum sealing and low closure-force applications
- Strong resistance to stress relaxation and compression set
- Broad temperature performance for demanding environments
- Good chemical resistance for exposure to common automotive fluids
- Strong fit for long-term sealing in moisture-sensitive applications
Common Applications for PORON® AquaPro® Series
PORON® AquaPro® Series is commonly used where moisture sealing and long-term compression performance are critical.
- Waterproof gaskets and seals
- Electrical enclosures
- Lighting seals
- HVAC seals
- Antenna seals
- Display and electronics sealing
- Automotive interior sealing
- Gap-filling and cushioning components in moisture-sensitive assemblies
Available AquaPro® Material Options
PORON® AquaPro® Series includes multiple material options for sealing applications.
- PORON® AquaPro® 4701-37
- PORON® AquaPro® 4701-37 Thin
- PORON® AquaPro® 4701-41 Soft – Enhanced Sealability
Data Sheets
Custom PORON® AquaPro® Gaskets, Seals & Converted Parts
SRP converts PORON® AquaPro® materials into custom die-cut gaskets, seals, cushions, and moisture-resistant components for demanding industrial applications. Whether your design needs low closure force, enhanced water sealing, or durable long-term compression performance, our team can help identify the right thickness, grade, adhesive, and part design.
Send us your drawing, part dimensions, material requirements, adhesive needs, and annual usage, and we’ll review the application and recommend the right PORON® AquaPro® solution.
Need Custom PORON® AquaPro® Gaskets or Converted Parts?
SRP converts PORON® AquaPro® materials into custom die-cut gaskets, seals, cushions, and moisture-resistant components for applications that need enhanced water sealing and long-term durability. Submit your drawing, dimensions, thickness requirements, adhesive needs, and estimated annual usage, and our team will review your project and follow up with a quote.


