QUICK SEARCH: A B C D E F G H I L M N O P Q R S T U V W Y Z

A

Abbreviations (Glossary & Abbreviations)

Abrasion (Failure Due To)
  Diagnosing O-Ring Failure: Abrasion
  Figure 128: Abrasion
  Glossary: Abrasion

Abrasion Resistance
  Selecting the Material: Physical Properties
  Figure 21: NBS Abrader
  Figure 22: Pico Abrader
  Figure 23: Taber Abrader
  Glossary: Abrasion Resistance

After Cure
  Selecting the Material: Batch Testing & Cure Date
  Glossary: After Cure

Alternatives to Standard O-Rings (Exploring Other Options)
  Crown Seals (Exploring Other Options)
    Figure 144: Crown Seal
  Fluoroplastic-Encapsulated O-Rings (Exploring Other Options)
    Figure 145: Fluoroplastic-Encapsulated O-Ring
  Lobed Seals (Exploring Other Options)
    Figure 139: Four-Lobed Seal
    Glossary: Quad Ring
   PTFE Capped Seals (Exploring Other Options)
    Figure 142: PTFE Capped Seal
  Spring-Energized PTFE Seals (Exploring Other Options)
    Figure 146: Spring-Energized PTFE Seal
  Square Rings (Exploring Other Options)
    Figure 140: Square Ring
  T-Seals (Exploring Other Options)
    Figure 143: T-Seal
  U-Cups (Exploring Other Options)
    Figure 141: U-Cup

American Society for Testing and Materials (ASTM)
  Understanding ASTM D 2000/SAE J200

Amorphous
  Selecting the Material: Back to Basics
  Figure 11: Amorphous
  Glossary: Amorphous

Aniline Point
  Selecting the Material: Anatomy of a Test Report
  Glossary: Aniline Point

Anti-Degradants
  Selecting the Material: Back to Basics
  Glossary: Anti-Degradant

Aromatic Hydrocarbon
  Figure 148: Aromatic Hydrocarbon
  Glossary: Aromatic Hydrocarbons

ASTM D 2000 / SAE J200, Understanding (Selecting the Material)

Atom
  Selecting the Material: Back to Basics
  Figure 7: Carbon Atom
  Glossary: Atom

Atomic Weight
  Selecting the Material: Back to Basics
  Table 1: Atomic Elements Most Commonly Used
  Glossary: Atomic Weight

Axial (Face) Seals
  Designing the Seal: Static Seals
  Figures 95 & 96: Axial
  Glossary: Axial Seal
  Glossary: Face
  Gland Design
    Table 43: Axial Seal Design
    Glossary: Gland
  Gland Dimensions
    Table 44: Axial Seal Dimensions

B

Back-Up Rings
  Designing the Seal: Environment
  Figures 78-80: Teflon Back-Ups
  Glossary: Back-Up Ring

Backrind
  Selecting the Material: Quality Assurance
  Figure 61: Backrind
  Table 25: Maximum Amount of Acceptable Backrind
  Glossary: Backrind

Batch Testing (Selecting the Material)

Bi-Directional Seal
  Figure 149: Bi-Directional Seal
  Glossary: Bi-Directional Seal

Bloom
  Designing the Seal: Environment
  Figure 82: In Bloom
  Glossary: Bloom

Bonds
  Selecting the Material: Back to Basics
  Glossary: Bond

Brittleness Point
  Selecting the Material: Thermal Properties
  Glossary: Brittleness Point

Buffing (See Excessive Trimming)

Butyl Rubber
  Selecting the Material: Material Profiles
  Figure 32: IIR (Butyl Rubber)
  Glossary: Butyl

C

Carbon
  Selecting the Material: Back to Basics
  Figure 7: Carbon Atom
  Table 1: Atomic Elements Most Commonly Used

Carboxylated Nitrile
  Selecting the Material: Material Profiles

Chain Scission
  Selecting the Material: Aging & Shelf Life
  Glossary: Chain Scission

Chemical Compatibility Guide (Selecting the Material)

Chloroprene
  Selecting the Material: Material Profiles
  Figure 33: CR (Chloroprene)

Chlorosulfonated Polyethylene
  Selecting the Material: Material Profiles
  Figure 34: CSM (Chlorosulfonated Polyethylene)

Clearance Gap
  Introduction: An O-Ring Primer
  Glossary: Clearance Gap

Coding (For Storage)
  Selecting the Material: Aging & Shelf Life

Coefficient of Thermal Expansion
  Selecting the Material: Thermal Properties
  Glossary: Coefficient of Thermal Expansion

Cold Flow (Creep)
  Selecting the Material: Material Profiles
  Glossary: Cold Flow

Compatibility
  Selecting the Material: Chemical Properties
  Figure 28: Evidence of Incompatibility (Swell)
  Figure 29: Evidence of Incompatibility (Shrinkage)
  Glossary: Compatibility

Compound
  Selecting the Material: Back to Basics
  Figure 8: Water Molecule
  Glossary: Compound

Compression Molding
  Figure 150: Compression Molding
  Glossary: Compression Molding

Compression Set
  Selecting the Material: Physical Properties
  Figure 24: Compression Set
  Figure 25: Constant Force (Test Method A)
  Figure 26: constant Deflection (Test Method B)
  Table 5: Compression Set in Increasing Temperatures
  Glossary: Compression Set
  Failure Due To
    Diagnosing O-Ring Failure: Compression Set
    Figure 129: Compression Set (Failure)

Conversion Factors (Glossary & Abbreviations)
  Centigrade - Fahrenheit (Table 56)
  English - Metric (Table 57)

Creep (See Cold Flow)

Crown Seals, As an O-Ring Alternative (Exploring Other Options)
  Figure 144: Crown Seal

Crush Seals
  Designing the Seal: Static Seals
  Figure 98: Crush
  Gland Design
    Table 46: Crush Seal Design
    Glossary: Gland

Crystalline
  Selecting the Material: Back to Basics
  Figure 10: Crystalline
  Glossary: Crystalline

Cure (See Vulcanization)

Cure Activators & Accelerators
  Selecting the Material: Back to Basics
  Glossary: Accelerator
  Glossary: Activator

Cure Curve
  Selecting the Material: Batch Testing & Cure Date
  Table 24: ODR-Plotted Cure Curve
  Glossary: Cure Curve

Cure Date
  Selecting the Material: Batch Testing & Cure Date
  Glossary: Cure Date

Cure Time, Optimum (See Optimum Cure Time)

Cycle Time
  Selecting the Material: Batch Testing & Cure Date
  Glossary: Cycle Time

D

Dieseling, Failure Due To (Diagnosing O-Ring Failure)
  Figure 130: Dieseling

Differential Pressure
  Figure 151: Differential Pressure
  Glossary: Differential Pressure

Diisocyanates (In Polyurethane)
  Selecting the Material: Material Profiles
  Glossary: Diisocyanate

Double Bond
  Figure 152: Double Bond
  Glossary: Double Bond

Dovetail Seals
  Designing the Seal: Static Seals
  Figure 97: Dovetail
  Gland Design
    Table 45: Dovetail Seal Design
    Glossary: Gland

Durometer
  Selecting the Material: Physical Properties
  Figure 15: Hardness Testers
  Table 3: Guide to Durometer Scale Selection
  Table 4: Conversions for Durometer Hardness Scales
  Figure 16: Durometer Use
  Glossary: Durometer

Dynamic Seals (Designing the Seal)
  Glossary: Dynamic Seal
  Floating Pneumatic Piston
    Designing the Seal: Dynamic Seals
    Figure 115: Floating Pneumatic
    Table 50: Floating Pneumatic Seal Design
    Table 51: Floating Pneumatic Seal Dimensions
  Oscillating
    Designing the Seal: Dynamic Seals
    Figure 118: Oscillating
    Glossary: Oscillating Seal
  Reciprocating
    Designing the Seal: Dynamic Seals
    Figures 113 & 114: Reciprocating
    Table 48: Reciprocating Seal Design
    Table 49: Reciprocating Seal Dimensions
    Glossary: Reciprocating Seal
  Rotary
    Designing the Seal: Dynamic Seals
    Figure 116: Rotary (Installation of)
    Figure 117: Rotary
    Table 52: Rotary Seal Design
    Table 53: Rotary Seal Dimensions
    Glossary: Rotary Seal

E

Elastic
  Selecting the Material: Back to Basics
  Glossary: Elasticity

Elastomer
  Selecting the Material: Back to Basics
  Glossary: Elastomer

Elastomeric Compound
  Selecting the Material: Back to Basics
  Glossary: Elastomeric Compound

Electrons
  Selecting the Material: Back to Basics
  Figure 7: Carbon Atom
  Glossary: Electron

Elongation
  Selecting the Material: Physical Properties
  Glossary: Elongation

Epichlorohydrin
  Selecting the Material: Material Profiles
  Figure 35: ECO (Epichlorohydrin Ethylene Oxide)

Ethylene Acrylic
  Selecting the Material: Material Profiles
  Figure 36: AEM (Ethylene Acrylic)

Ethylene Propylene
  Selecting the Material: Material Profiles
  Figure 37: EPDM (Ethylene Propylene Diene)

Excessive Flash (See Parting Line Projection)

Excessive Trimming (Buffing)
  Selecting the Material: Quality Assurance
  Figure 62: Excessive Trimming
  Table 26: Minimum Cross-Sections (Acceptable Trimming)
  Glossary: Trim

Explosive Decompression, Failure Due To
(Diagnosing O-Ring Failure)
  Figure 131: Explosive Decompression
  Glossary: Explosive Decompression

External Lubrication
  Designing the Seal: Environment

Extrusion & Nibbling
  Designing the Seal: Environment
  Figures 75 & 76: Effect of High Pressure (Extrusion)
  Table 39: Extrusion Curves
  Glossary: Extrusion
  Glossary: Nibbling
  Failure Due To
    Diagnosing O-Ring Failure: Extrusion & Nibbling
    Figure 132: Extrusion & Nibbling

F

Face Seals (See Axial Seals)

Failure (Of O-Ring Seals)
  Common Causes (Diagnosing O-Ring Failure)
  Due To Abrasion
    Diagnosing O-Ring Failure: Abrasion
    Figure 128: Abrasion
    Glossary: Abrasion
  Due To Compression Set
    Diagnosing O-Ring Failure: Compression Set
    Figure 129: Compression Set
    Glossary: Compression Set
  Due To Dieseling
    Diagnosing O-Ring Failure: Dieseling
    Figure 130: Dieseling
  Due To Explosive Decompression
    Diagnosing O-Ring Failure: Explosive Decompression
    Figure 131: Explosive Decompression
    Glossary: Explosive Decompression
  Due To Extrusion & Nibbling
    Diagnosing O-Ring Failure: Extrusion & Nibbling
    Figure 132: Extrusion & Nibbling
    Glossary: Extrusion
    Glossary: Nibbling
  Due To Hardening & Embrittlement
    Diagnosing O-Ring Failure: Hardening & Embrittlement
    Figure 133: Hardening
  Due To Hole Crossing Damage
    Diagnosing O-Ring Failure: Hole Crossing Damage
    Figure 134: Hole Crossing Damage
  Due To Installation Damage
    Diagnosing O-Ring Failure: Installation Damage
    Figure 135: Installation Damage
  Due To Plasticizer Extraction (Shrinkage)
    Diagnosing O-Ring Failure: Plasticizer Extraction (Shrinkage)
    Figure 136: Shrinkage
    Glossary: Plasticizer
    Glossary: Extraction
    Glossary: Shrinkage
  Due To Spiraling
    Diagnosing O-Ring Failure: Spiral Failure
    Figure 137: Spiral Failure
    Glossary: Spiral Failure
  Due To Weather & Ozone Cracking
    Diagnosing O-Ring Failure: Weather & Ozone Cracking
    Figure 138: Weather & Ozone Cracking
    Glossary: Weathering
    Glossary: Ozone
    Glossary: Cracking

Fillers
  Selecting the Material: Back to Basics
  Selecting the Material: Material Profiles
  Glossary: Filler

Flash
  Figure 153: Flash
  Glossary: Flash
  Excessive (Parting Line Projection)
    Selecting the Material: Quality Assurance
    Figure 70: Parting Line Projection
    Table 34: Acceptable Parting Line Projection
    Glossary: Parting Line

Flaws (Surface Finish)
  Designing the Seal: Construction
  Figures 84-87: The Finish Line
  Glossary: Flaws
  Glossary: Surface Finish

Floating Pneumatic Piston Seals
  Designing the Seal: Dynamic Seals
  Figure 115: Floating Pneumatic
  Gland Design
    Table 50: Floating Pneumatic Seal Design
    Glossary: Gland
  Gland Dimensions
    Table 51: Floating Pneumatic Seal Dimensions

Flow Marks
  Selecting the Material: Quality Assurance
  Figure 63: Flow Marks
  Table 27: Acceptable Flow Marks
  Glossary: Flow Line

Fluorocarbon (Fluoroelastomer)
  Selecting the Material: Material Profiles
  Figure 38: FKM (Fluorocarbon)
  Table 8: Heat Resistance of FKM
  Table 9: Comparison of Standard Fluorocarbons
  Glossary: Fluorocarbon
  Viton A
    Selecting the Material: Material Profiles
  Viton B
    Selecting the Material: Material Profiles
  Viton GF
    Selecting the Material: Material Profiles
  Viton GFLT
    Selecting the Material: Material Profiles

Fluoroplastic-Encapsulated O-Rings, As O-Ring Alternatives
(Exploring Other Options)
  Figure 145: Fluoroplastic-Encapsulated O-Ring

Fluorosilicone
  Selecting the Material: Material Profiles
  Figure 39: FVMQ (Fluorosilicone)

Food & Beverage Uses
  Selecting the Material: Special Considerations

Foreign Material
  Selecting the Material: Quality Assurance
  Figure 64: Foreign Material
  Table 28: Acceptable Foreign Material

Friction
  Designing the Seal: Environment
  Glossary: Friction

Fuel Service
  Selecting the Material: Special Considerations

G

Gas Permeation
  Selecting the Material: Special Considerations
  Glossary: Permeability

Gland
  Introduction: An O-Ring Primer
  Designing the Seal: Construction
  Figure 83: Groove vs. Gland
  Glossary: Gland

Gland Cleanliness
  Designing the Seal: Construction

Gland Shape
  Designing the Seal: Construction
  Figure 91: Getting in Shape

Glossary (Glossary & Abbreviations)

Gough-Joule Effect
  Selecting the Material: Thermal Properties
  Figure 31: Material Retraction
  Designing the Seal: Dynamic Seals
  Glossary: Gough-Joule Effect

Groove
  Introduction: An O-Ring Primer
  Designing the Seal: Construction
  Figure 83: Groove vs. Gland
  Glossary: Groove

H

Hardening & Embrittlement, Failure Due To
(Diagnosing O-Ring Failure)
  Figure 133: Hardening

Hardness
  Selecting the Material: Physical Properties
  Figure 15: Hardness Testers
  Glossary: Hardness

High Temperatures
  Selecting the Material: Thermal Properties
  Table 7: Material Performance in High Temperatures

Hole Crossing Damage, Failure Due To
(Diagnosing O-Ring Failure)
  Figure 134: Hole Crossing Damage

Humidity (In Storage)
  Selecting the Material: Aging & Shelf Life
  Glossary: Relative Humidity

Hydrogenated Nitrile
  Selecting the Material: Material Profiles
  Figure 40: HNBR (Hydrogenated Nitrile)

Hydrogenation
  Selecting the Material: Material Profiles
  Glossary: Hydrogenation

I

Industrial Straight Thread Tube Fitting Seals
  Designing the Seal: Static Seals
  Boss Dimensions
    Table 47: Tube Fitting Design

Inhibitors
  Selecting the Material: Back to Basics
  Glossary: Inhibitor

Injection Molding
  Figure 154: Injection Molding
  Glossary: Injection Molding

Inorganic Compounds
  Selecting the Material: Back to Basics
  Figure 8: Water Molecule
  Glossary: Inorganic

Installation
  Designing the Seal: Construction
  Damage (Failure Due To)
    Diagnosing O-Ring Failure: Installation Damage
    Figure 135: Installation Damage

Internal Lubrication
  Designing the Seal: Environment
  Figure 82: In Bloom (Lubricant)
  Table 40: Abrasion & Friction Testing Results

International Rubber Hardness Degrees (IRHD)
  Selecting the Material: Physical Properties

L

Lay (Surface Finish)
  Designing the Seal: Construction
  Figures 84-87: The Finish Line
  Glossary: Lay
  Glossary: Surface Finish

Lead-In
  Figure 155: Lead-In
  Glossary: Lead-In

Lobed Seals, As O-Ring Alternatives (Exploring Other Options)
  Figure 139: Four-Lobed Seal
  Glossary: Quad Ring

Low Temperatures
  Selecting the Material: Thermal Properties
  Figure 30: Low Temperature Testing

Lubrication
  External
    Designing the Seal: Environment
  Internal
    Designing the Seal: Environment
    Figure 82: In Bloom (Lubricant)
    Table 40: Abrasion & Friction Testing Results

M

Macromolecules
  Selecting the Material: Back to Basics
  Glossary: Macromolecule

Mating Surfaces
  Introduction: An O-Ring Primer
  Glossary: Mating Surfaces

Maximum Cure
  Selecting the Material: Batch Testing & Cure Date
  Glossary: Maximum Cure

Memory
  Introduction: An O-Ring Primer
  Glossary: Memory

Metal
  Designing the Seal: Construction

Mismatch
  Selecting the Material: Quality Assurance
  Figure 65: Mismatch
  Table 29: Maximum Acceptable Mismatch
  Glossary: Mismatch

Modulus
  Selecting the Material: Physical Properties
  Figure 17: Tensile Specimen
  Glossary: Modulus

Mold
  Figure 59: Going to Press
  Figure 156: Mold Storage
  Glossary: Mold

Mold Deposit Indentations
  Selecting the Material: Quality Assurance
  Figure 66: Mold Deposit Indentations
  Table 30: Acceptable Mold Deposit Indentation

Molecular Weight
  Selecting the Material: Back to Basics
  Table 2: Physical Properties as a Result of Polymerization
  Glossary: Molecular Weight

Molecule
  Selecting the Material: Back to Basics
  Figure 8: Water Molecule
  Glossary: Molecule

Monomers
  Selecting the Material: Back to Basics
  Figure 9: Monomer to Polymer
  Glossary: Monomer

Mooney Viscometer
  Selecting the Material: Batch Testing & Cure Date
  Glossary: Mooney Viscometer

Moving Die Rheometer (MDR)
  Selecting the Material: Batch Testing & Cure Date
  Glossary: Rheometer

N

National Sanitation Foundation (NSF)
  Selecting the Material: Special Considerations

Natural Rubber
  Selecting the Material: Material Profiles
  Figure 41: NR (Natural Rubber)

Neutrons
  Selecting the Material: Back to Basics
  Figure 7: Carbon Atom
  Glossary: Neutron

Nibbling
  Figure 157: Nibbling
  Glossary: Nibbling
  (See Also Extrusion & Nibbling)

Nitrile
  Selecting the Material: Material Profiles
  Figure 42: NBR (Nitrile)
  Glossary: Nitrile
  Carboxylated
    Selecting the Material: Material Profiles

Non-Fill
  Selecting the Material: Quality Assurance
  Figure 67: Non-Fill
  Table 31: Maximum Amount of Acceptable Non-Fill
  Glossary: Non-Fill

Nucleus
  Selecting the Material: Back to Basics
  Figure 7: Carbon Atom

O

Off-Register
  Selecting the Material: Quality Assurance
  Figure 68: Off-Register
  Table 32: Maximum Amount of Acceptable Off-Register
  Glossary: Off-Register

Optimum Cure Time
  Selecting the Material: Batch Testing & Cure Date
  Glossary: Optimum Cure

Ordering

Organic Compounds
  Selecting the Material: Back to Basics
  Glossary: Organic

Oscillating Disk Rheometer (ODR)
  Selecting the Material: Batch Testing & Cure Date
  Figure 58: ODR
  Table 24: ODR-Plotted Cure Curve
  Glossary: Rheometer

Oscillating Seals
  Designing the Seal: Dynamic Seals
  Figure 118: Oscillating
  Glossary: Oscillating Seal

P

Parting Line Indentations
  Selecting the Material: Quality Assurance
  Figure 69: Parting Line Indentation
  Table 33: Acceptable Parting Line Indentation
  Glossary: Parting Line

Parting Line Projection (Excessive Flash)
  Selecting the Material: Quality Assurance
  Figure 70: Parting Line Projection
  Table 34: Acceptable Parting Line Projection
  Glossary: Flash
  Glossary: Parting Line

Perfluoroelastomer
  Selecting the Material: Material Profiles
  Figure 43: FFKM (Perfluoroelastomer)
  Table 11: FFKM's Thermal Properties

Permeability
  Figure 158: Permeability
  Glossary: Permeability

Pigments
  Selecting the Material: Back to Basics
  Glossary: Pigment

Piston Gland
  Introduction: An O-Ring Primer
  Figure 1: Rod & Piston Glands
  Glossary: Gland

Plastic Surfaces
  Selecting the Material: Special Consideration

Plasticizer
  Selecting the Material: Back to Basics
  Selecting the Material: Special Consideration
  Glossary: Plasticizer
  Extraction (Failure Due To)
    Diagnosing O-Ring Failure: Plasticizer Extraction (Shrinkage)
    Figure 136: Shrinkage
    Glossary: Extraction
    Glossary: Shrinkage

Polyacrylate
  Selecting the Material: Material Profiles
  Figure 44: ACM (Polyacrylate)

Polymerization
  Selecting the Material: Back to Basics
  Figure 9: Monomer to Polymer
  Table 2: Changes as a Result of Polymerization
  Glossary: Polymerize

Polymers
  Selecting the Material: Back to Basics
  Figure 9: Monomer to Polymer
  Glossary: Polymer

Polyols (In Polyurethane)
  Selecting the Material: Material Profiles
  Glossary: Polyol

Polyurethane
  Selecting the Material: Material Profiles
  Figure 45: AU (Polyester-based Polyurethane)
  Figure 46: EU (Polyether-based Polyurethane)
  Figure 47: Tough to Top (Polyurethane O-Rings)
  Diisocyanates
    Selecting the Material: Material Profiles
    Glossary: Diisocyanate
  Polyols
    Selecting the Material: Material Profiles
    Glossary: Polyol
  Processing
    Selecting the Material: Material Profiles

Post Cure
  Selecting the Material: Batch Testing & Cure Date
  Glossary: Post Cure

Pressure
  Designing the Seal: Environment
  Figures 75 & 76: Effect of High Pressure

Protons
  Selecting the Material: Back to Basics
  Figure 7: Carbon Atom
  Glossary: Proton

PTFE Capped Seals, As O-Ring Alternatives
(Exploring Other Options)
  Figure 142: PTFE Capped Seal

Q

Quality Assurance (Selecting the Material)

R

Radial Seals
  Designing the Seal: Static Seals
  Figures 93 & 94: Radial
  Glossary: Radial Seal
  Gland Design
    Table 41: Radial Seal Design
    Glossary: Gland
  Gland Dimensions
    Table 42: Radial Seal Dimensions

Reciprocating Seals
  Designing the Seal: Dynamic Seals
  Figures 113 & 114: Reciprocating
  Glossary: Reciprocating Seal
  Gland Design
    Table 48: Reciprocating Seal Design
    Glossary: Gland
  Gland Dimensions
    Table 49: Reciprocating Seal Dimensions

Resilience
  Selecting the Material: Physical Properties
  Figure 27: Resilience
  Glossary: Resilient

Reversion
  Selecting the Material: Special Considerations
  Glossary: Reversion

Rheometers
  Glossary: Rheometer
  Moving Die Rheometer (MDR)
    Selecting the Material: Batch Testing & Cure Date
  Oscillating Disk Rheometer (ODR)
    Selecting the Material: Batch Testing & Cure Date
    Figure 58: ODR
    Table 24: ODR-Plotted Cure Curve

Rod Gland
  Introduction: An O-Ring Primer
  Figure 1: Rod & Piston Glands
  Glossary: Gland

Root Mean Square (RMS)
  Designing the Seal: Construction
  Glossary: RMS

Rotary Seals
  Designing the Seal: Dynamic Seals
  Figure 116: Rotary (Installation)
  Figure 117: Rotary
  Glossary: Rotary Seal
  Gland Design
    Table 52: Rotary Seal Design
    Glossary: Gland
  Gland Dimensions
    Table 53: Rotary Seal Dimensions

Roughness
  Designing the Seal: Construction
  Figures 84-87: The Finish Line
  Glossary: Roughness

Roughness Average (Ra)
  Designing the Seal: Construction
  Figure 90: Ra Measurement
  Glossary: Roughness Average

S

Saturation
  Selecting the Material: Material Profiles
  Figure 160: Saturation
  Glossary: Saturation

Scorch Time
  Selecting the Material: Batch Testing & Cure Date
  Glossary: Scorching

Seals, Dynamic (See Dynamic Seals)

Seals, Static (See Static Seals)

Semiconductor Industry
  Selecting the Material: Special Considerations

Shrinkage
  Selecting the Material: Chemical Properties
  Figure 29: Evidence of Incompatibility (Shrinkage)
  Glossary: Shrinkage

Silicone
  Selecting the Material: Material Profiles
  Figure 48: VMQ (Vinyl Methyl Silicone)
  Glossary: Silicone Rubber

Size
  Designing the Seal: Dimensions
  Glossary: Size

Size Tables, O-Ring (Ordering Information)

Society of Automotive Engineers (SAE)
  Selecting the Material: Understanding ASTM D 2000/SAE J200

Specific Gravity
  Selecting the Material: Batch Testing & Cure Date
  Glossary: Specific Gravity

Specifications, Military (Selecting the Material)

Spiraling (Failure Due To)
  Diagnosing O-Ring Failure: Spiral Failure
  Figure 137: Spiral Failure
  Glossary: Spiral Failure

Spring-Energized PTFE Seals, As O-Ring Alternatives
(Exploring Other Options)
  Figure 146: Spring-Energized PTFE Seal

Square Rings, As O-Ring Alternatives (Exploring Other Options)
  Figure 140: Square Ring

Squeeze
  Designing the Seal: Dimensions
  Figure 73: Radial Squeeze
  Figure 74: Axial Squeeze
  Glossary: Squeeze

Static Friction (Stiction, Break-Out Friction)
  Designing the Seal: Environment
  Designing the Seal: Construction
  Figure 161: Static Friction
  Glossary: Static Friction

Static Seals
  Glossary: Static Seal
  Axial (Face)
    Designing the Seal: Static Seals
    Figures 95 & 96: Axial
    Table 43: Axial Seal Design
    Table 44: Axial Seal Dimensions
    Glossary: Axial Seal
  Crush
    Designing the Seal: Static Seals
    Figure 98: Crush
    Table 46: Crush Seal Design
  Dovetails
    Designing the Seal: Static Seals
    Figure 97: Dovetail
    Table 45: Dovetail Seal Design
  Industrial Straight Thread Tube Fitting
    Designing the Seal: Static Seals
    Table 47: Tube Fitting Design
  Radial
    Designing the Seal: Static Seals
    Figures 93 & 94: Radial
    Table 41: Radial Seal Design
    Table 42: Radial Seal Dimensions
    Glossary: Radial Seal

Storage
  Figure 71: Our Warehouse
  Coding
    Selecting the Material: Aging & Shelf Life
  Deformation
    Selecting the Material: Aging & Shelf Life
  Light
    Selecting the Material: Aging & Shelf Life
  Oxygen
    Selecting the Material: Aging & Shelf Life
  Ozone
    Selecting the Material: Aging & Shelf Life
    Glossary: Ozone
  Relative Humidity
    Selecting the Material: Aging & Shelf Life
    Glossary: Relative Humidity
  Shelf Life
    Selecting the Material: Aging & Shelf Life
    Table 35: Shelf Life of Common Elastomers
  Temperature
    Selecting the Material: Aging & Shelf Life

Strain Crystallization
  Selecting the Material: Back to Basics
  Glossary: Strain Crystallization

Stretch
  Designing the Seal: Dimensions
  Table 37: Reduction of Cross-Section Due to Stretch
  Glossary: Stretch

Styrene Butadiene
  Selecting the Material: Material Profiles
  Figure 49: SBR (Styrene Butadiene)

Surface Finish
  Figures 84-87: The Finish Line
  Figure 88: Going with the Flow
  Figure 89: On the Surface
   Glossary: Surface Finish
  Flaws
    Designing the Seal: Construction
    Glossary: Flaws
  Lay
    Designing the Seal: Construction
    Glossary: Lay
  Root Mean Square (RMS)
    Designing the Seal: Construction
    Glossary: RMS
  Roughness
    Designing the Seal: Construction
    Glossary: Roughness
  Roughness Average (Ra)
    Designing the Seal: Construction
    Figure 90: Ra Measurement
    Glossary: Roughness Average
  Waviness
    Designing the Seal: Construction
    Glossary: Waviness

Swell
  Selecting the Material: Chemical Properties
  Figure 28: Evidence of Incompatibility (Swell)
  Glossary: Swell

T

Tear Resistance
  Selecting the Material: Physical Properties
  Figure 19: Tear Initiation
  Figure 20: Tear Propagation
  Glossary: Tear Resistance

TR-10 (Temperature Retraction Test)
  Selecting the Material: Thermal Properties
  Figure 30: Low Temperature Testing (TR-10)
  Selecting the Material: Anatomy of a Test Report

Temperatures
  High
    Selecting the Material: Thermal Properties
    Table 7: Material Performance in High Temperatures
  Low
    Selecting the Material: Thermal Properties
    Figure 30: Low Temperature Testing
  Material Ranges
    Designing the Seal: Environment
    Table 38: Comparison of Material Temperature Ranges
  Storage
    Selecting the Material: Aging & Shelf Life

Tensile Strength
  Selecting the Material: Physical Properties
  Figure 17: Tensile Specimen
  Figure 18: Tensile Tester
  Glossary: Tensile Strength

Terpolymer
  Figure 162: Terpolymer
  Glossary: Terpolymer

Test Reports, Anatomy of (Selecting the Material)
  Figure 57: Data on Demand

Tetrafluoroethylene
  Selecting the Material: Material Profiles
  Figures 50-52: Tetrafluoroethylene

Tetrafluoroethylene Propylene
  Selecting the Material: Material Profiles
  Figure 53: FEPM (Tetrafluoroethylene Propylene)

Tolerance
  Designing the Seal: Dimensions
  Glossary: Tolerance

Tolerance Stack-Up (Build-Up)
  Diagnosing O-Ring Failure: Common Causes
  Table 54: Tolerance Stack-Up
  Glossary: Tolerance Build-Up

Transfer Molding
  Figure 163: Transfer Molding
  Glossary: Transfer Molding

T-Seals, As O-Ring Alternatives (Exploring Other Options)
  Figure 143: T-Seal

U

U-Cups, As O-Ring Alternatives (Exploring Other Options)
  Figure 141: U-Cup

Underwriters Laboratories
  Selecting the Material: Special Considerations

V

Valence
  Selecting the Material: Back to Basics
  Table 1: Atomic Elements Most Commonly Used
  Selecting the Material: Material Profiles
  Glossary: Valence

Van der Waals Forces
  Selecting the Material: Back to Basics
  Glossary: Van der Waals Forces

Visco-Elastic Material
  Selecting the Material: Back to Basics
  Figure 13: Visco-Elasticity
  Glossary: Visco-Elastic

Viscosity
  Selecting the Material: Back to Basics
  Glossary: Viscosity

Viton® (Brand of Fluorocarbon)
  Table 9: Comparison of Fluorocarbons
  Glossary: Fluorocarbon
  Viton A
    Selecting the Material: Material Profiles
  Viton B
    Selecting the Material: Material Profiles
  Viton GF
    Selecting the Material: Material Profiles
  Viton GFLT
    Selecting the Material: Material Profiles

Volume Change
  Selecting the Material: Chemical Properties
  Figure 28: Evidence of Incompatibility (Swell)
  Figure 29: Evidence of Incompatibility (Shrinkage)
  Glossary: Volume Change

Vulcanization (Cure)
  Selecting the Material: Back to Basics
  Figure 14: Effect of Vulcanization
  Glossary: Vulcanization

W

Waviness (Surface Finish)
  Designing the Seal: Construction
  Figures 84-87: The Finish Line
  Glossary: Waviness
  Glossary: Surface Finish

Water
  Selecting the Material: Back to Basics
  Figure 8: Water Molecule

Weather & Ozone Cracking, Failure Due To
(Diagnosing O-Ring Failure)
  Figure 138: Weather & Ozone Cracking
  Glossary: Weathering
  Glossary: Ozone
  Glossary: Cracking

Y

Young’s Modulus
  Designing the Seal: Environment
  Glossary: Young's Modulus

Z

Z Suffix
  Selecting the Material: Anatomy of a Test Report