Poly Labs manufacturers polyurethane insoles for various footwear applications, including: military boot, industrial, casual shoes, sneakers, and work boots.
We offer several open programs with internally developed molds in all shoe sizes – the below open program is an advanced insole – our PL-001 program
Poly Labs Medium Density U-36 Polyurethane Foam
As a medium density viscoelastic foam, U-36 is generally used for protective padding and support pad applications. Typical applications for our U-36 include footwear insoles, wrist rests, helmet pads, or other padding not requiring high tear resistance.
U-36 can be co-molded onto fabric. Likewise, it can be in-mold coated to provide a more durable surface. The physical and mechanical properties for our medium density PU foam are as follows:
| Density | 0.3 g/cm³ |
| Hardness, Shore OO (10 sec) | 14 – 16 |
| Tensile Strength | 69 psi |
| Elongation | 183 % |
| Die C Tear | 4.1 pli |
| Trouser Tear (p/l) | 4.0 |
| Compression Set, 50% at 77°F | |
| Of original thickness | 2.0 % |
| Of original deflection | 1.0 % |
| Compression Set, 50% at 158°F | |
| Of original thickness | 14.0 % |
| Of original deflection | 7.0 % |
Footwear: Types of Insoles & Common Products
Poly Labs manufactures a wide array polyurethane and polymer-based insole products for casual shoes, sneakers, industrial work boots, military combat boots and more. The following is a small sample of our comprehensive line of PU footwear insoles products:
- Diabetic insoles
- Open cell insoles
- Shoe inserts
- Foot beds
- Military boot insoles
Insoles: Design Factors
Our team’s combined experience in materials science, advanced machining, manufacturing technology and engineering give us a solid understanding of the footwear manufacturing process. Likewise, Poly Labs legacy as a footwear manufacturer dates back decades. Poly Labs has a longstanding history of designing, engineering, and manufacturing polyurethane and injection molded thermoplastics specifically for the footwear industry.
The team at Poly Labs incorporates non-standard materials and delivers finished products to fit our customers exacting needs. Here are the factors we consider when we manufacture our footwear insoles:
- Exceptional comfort
- Motion control
- Lightweight cushioning
- Rugged performance
- Overall durability
- Shock absorption
- Abrasion resistance
- Anti-slip properties
- Static dissipation
For more information on our footwear insoles, or other poured polyurethane products, please contact our sales team. We will set up a call with one of our sales representatives to discuss your application and product requirements. We look forward to hearing from you!