60 Durometer Butyl (IIR) Sheet
60 Durometer Butyl (IIR) Sheet is a medium-durometer butyl rubber sheeting compound meeting the requirements of ASTM D2000 M1AA607, with a service temperature range of -40 to +180°F, a tensile strength of 1015 psi minimum, and elongation of 300% minimum. The material is compliant with REACH, RoHS, and California Proposition 65 and is manufactured in the USA. This grade is suited for general industrial gasket and sealing applications requiring a mid-durometer butyl elastomer with documented ASTM material specification, low gas permeability, and resistance to weathering, ozone, and polar chemicals.
Key Properties
- Hardness, Shore A: 60 ± 5 (ASTM D2240)
- Tensile Strength: 1015 psi min (ASTM D412)
- Elongation: 300% min (ASTM D412)
- Service Temperature Range: -40 to +180°F
- Specification: ASTM D2000 M1AA607
- Compliance: REACH, RoHS, California Proposition 65
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- Specifications
- Applications
- General Info
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Physical Properties
| Property | Required Value | Test Method |
| Hardness, Shore A | 60 ± 5 | ASTM D2240 |
| Tensile Strength, psi | 1015 min | ASTM D412 |
| Elongation, % | 300 min | ASTM D412 |
| Temperature Range | -40 to +180°F | — |
Standard Dimensions
| Property | Value |
| Thickness Range | 1/32″ – 1/4″ |
| Standard Widths | 36″, 48″ |
| Estimated Weight Per Linear Foot (1/8″ x 36″) | 2.24 lb |
Compliance
- ASTM D2000 M1AA607 — Compliant
- REACH — Compliant
- RoHS — Compliant
- California Proposition 65 — Compliant
- General industrial gaskets and flange seals
- Chemical-resistant seals and diaphragms
- Pharmaceutical and food processing equipment seals
- Steam system gaskets and seals
- Gas and vapor containment sealing
Common industries: Chemical Processing, Pharmaceutical, Food & Beverage, Steam & HVAC Systems, General Industrial.
60 Durometer Butyl (IIR) Sheet is the mid-range hardness grade in the Butyl (IIR) Sheet line, offering 60 Shore A hardness and meeting the requirements of ASTM D2000 M1AA607. At this durometer, the material balances conformability and compression resistance, making it broadly applicable across general industrial gasket and sealing tasks where a mid-durometer IIR compound with a documented specification is required.
The butyl rubber polymer provides inherent low gas and vapor permeability, excellent resistance to weathering, ozone, and UV exposure, and good resistance to polar chemicals, acids, and alkalis — properties that support use in chemical processing, pharmaceutical, food processing, and steam system sealing environments. The material is REACH compliant, RoHS compliant, and California Proposition 65 compliant, and is manufactured in the USA.
What differentiates 60 Durometer Butyl (IIR) Sheet from the 40 Durometer, 50 Durometer, and 70 Durometer grades?
60 Durometer Butyl (IIR) Sheet is the mid-range grade in the line, meeting ASTM D2000 M1AA607 and balancing conformability with compression resistance at 60 Shore A. 40 Durometer Butyl (IIR) Sheet is the softest grade for maximum conformability on low-load surfaces. 50 Durometer Butyl (IIR) Sheet delivers the highest tensile strength (1100 psi) and elongation (450%) in the line. 70 Durometer Butyl (IIR) Sheet is the firmest grade for high-load applications where extrusion resistance is the primary requirement.
Why is durometer important when selecting a butyl sheeting grade for industrial gasket applications?
Durometer determines how the gasket responds to compressive load at the sealing interface. A 60 Shore A material provides enough stiffness to resist extrusion under moderate bolt loads while remaining compliant enough to conform to typical flange surfaces. Selecting the correct hardness prevents both under-sealing on rough surfaces and over-extrusion into flow paths at elevated clamping forces.
What is the service temperature range for 60 Durometer Butyl (IIR) Sheet?
The service temperature range is -40 to +180°F, as listed on the Technical Datasheet.
What chemical resistance properties does Butyl (IIR) rubber provide?
Butyl rubber offers excellent resistance to polar chemicals, dilute acids, alkalis, and ketones, as well as inherently low gas and vapor permeability. It is also highly resistant to weathering, ozone, and UV exposure. Butyl rubber is not recommended for petroleum oils, gasoline, or non-polar hydrocarbon solvents.
How should 60 Durometer Butyl (IIR) Sheet be specified?
Specify grade (60 Durometer Butyl (IIR) Sheet), thickness, ASTM D2000 M1AA607 if required by design documentation, compliance requirements, dimensional tolerances, and finished format.
