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HYDEX® 202 & 301 (Rigid Polyurethane Rod & Slab)
A
family of amorphous polymers that exhibit many properties of crystalline
resins: chemical resistance, dimensional stability, toughness and clarity.
These materials are extremely dimensionally stable and are frequently
the material of choice when close tolerance and/or difficult geometrical
parts are being machined.
Hydex 202 and 301 rod and slab stock are a family of rigid thermoplastic polyurethane products. These products are produced from Isoplast® engineering thermoplastic resins. Isoplast resins are unique in the fact that they are amorphous which will yield properties such as good impact resistance, good dimensional stability and clarity approaching that of polycarbonate, but they also exhibit properties of crystalline polymers by having excellent chemical resistance and low moisture absorption.
Although Hydex 202 and 301 have unique properties which make it a good candidate for metal, glass or ceramic replacement, it can also be used in similar applications where polycarbonate, nylon or acetal are currently used. A wide variety of rod and slab sizes are available. Hydex 301 is transparent a grade, while Hydex 202 is opaque but has higher impact properties than that of Hydex 301.
Product Applications
- Bearings Filter Housing
- Gears
- Industrial Hardware (nuts/bolts)
- Industrial Processing Equipment
- Level Gauges
- Oil and Gas Field Equipment
- Small Engine Components
Typical Properties
- Chemical resistance
- Clarity
- Dimensional stability
- Impact resistance
- Low moisture absorption
- Toughness
- Wear resistance
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PROPERTY
TESTED
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ASTM
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UNITS
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HYDEX
202
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HYDEX
301
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Physical
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Tensile Strength |
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psi psi % 5 psi psi psi ft.lb/in R M L % % |
10 |
10,000 9,000 7 140 310,000 14,000 340,000 2 123 74 109 .19 88 |
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Thermal
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.
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.
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| Deflection
Temperature unannealed, 66 psi unannealed, 264 psi Deflection Temp annealed, 66 psi annealed, 264 psi |
D648 D648 D648 D648 |
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265 240 290 280 |
190 170 220 210 |
Machining Guide
This material can be machined by conventional machine tool processes such as turning, milling and drilling. The basic machining parameters are listed below. Please note that these are guidelines, or starting points and you may be able to optimize them for your tooling set-up.
- Cutting tools should be high speed steel
- Carbide tools are not recommended
- Cutting tools should have a 7° relief on the cutting and back edges
- Use chip breaker where possible
- Surface machining speed should be approximately 2,000 inches/min.
- Tool feed rate should be approximately 1.4 inches/min.
- Cutting depth should be approximately .005 inches.
- Cutting
coolants are not normally needed.