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Anaerobic Adhesives and Anaerobic Sealants Specifications

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Substrate / Material Compatibility




           
   Your choices are...
 
      
 
   Ceramic / Glass
 
     Ceramics consist of oxides, carbides, nitrides, carbons and other non-metals with high melting points. Ceramics are suitable for applications requiring wear resistance, refractoriness, low electrical resistivity or other specialized characteristics.
 
   Concrete / Masonry
 
     Concrete and cements consist of a mixture of a binder or clinker and a coarser aggregate. They are used to patch or line floors and walls, bond brick, and join components for use in high temperature applications. Clinker is a fused mineral or mineral mixture, such as alumina or bauxite and lime, which is crushed into a fine powder to manufacture cements. Aggregates are coarser, granular materials that are added to mortar, grout or cement at mixing time to impart special properties such as refractoriness, erosion resistance, and oxidation resistance. Synthetic aggregates are fused mineral or mineral mixtures crushed to a coarse, granular size range rather than a fine, powdered clinker. Portland cement is the most common bond used in structural concretes and mortars. Polymer cements have a resin bond and are used in corrosion protection, mortars for corrosion-resistant floor tiles, and other specialized industrial applications. Masonry consists of tile, bricks, stone or other ceramic components bonded together with mortar or adhesive.
 
   Composites
 
     Composite materials typically consist of a matrix and a dispersed, fibrous, or continuous second phase. The second phase may reinforce (strengthen or stiffen), alter electrical or magnetic properties, or enhance wear or erosion resistance.
 
   Metal
 
     Metals are opaque, fusible, ductile, and typically lustrous substances that are good conductors of heat and electricity. They form cations by the loss of electrons and yield basic oxides and hydroxides. Metals that are used in structural engineering applications have a high toughness that is a combination of high strength and ductility.
 
   Paper / Paperboard
 
     Paper or paperboard products are produced from a pulp of cellulose, cotton, wood or other vegetable fibers. The pulp is laid down on a fine screen from a water suspension to form sheets that are dried and further processed.
 
   Plastic
 
     Plastics are organic, synthetic or processed materials that are mostly thermoplastic or thermosetting polymers of high molecular weight. They can be made into objects, films, or filaments.
 
   Porous Surfaces
 
     Substances are adhesives or sealants with a high viscosity or gel-like consistency. Typically, these materials have the ability to work with porous surfaces.
 
   Rubber / Elastomer
 
     Rubber and elastomers are characterized by a high degree of flexibility and elasticity (high reversible elongation).  Natural or synthetic rubber is vulcanized to increase useful properties such as toughness and resistance to wear for use in tires, electrical insulation, and waterproof materials. Vulcanization is a chemical treatment that adds sulfur and heat to crosslink the rubber. Natural rubber is an elastic substance that is obtained by coagulating the milky juice of any of various tropical plants. Essentially, natural rubber is a polymer of isoprene, and is prepared as sheets and then dried.  Synthetic rubbers or elastomers can be based on a variety of systems such as silicone, polyurethane or neoprene.
 
   Textiles / Fabrics
 
     Substances are adhesives or sealants suitable for coating, filling, sizing or sealing non-woven or woven textiles. Sizing adhesives or resins are used to fill in paper, textile webs, and other fibrous products.
 
   Wood / Wood Product
 
     Wood is a natural composite extracted from the stems, branches, and roots of trees. Wood is a hard fibrous substance that consists of xylem, cellulose fibers in an amorphous, lignin polymer matrix. Lignin is a biogenetic crosslinked polymer which bonds together adjacent cell walls into the straw or wood tissue composite. Cellulose is a polysaccharide (C6H10O5)x of glucose units that constitutes the chief part of the cell walls of plants. It occurs naturally in fibrous products such as cotton and kapok, and is the raw material of many manufactured goods as paper, rayon, and cellophane.
 
   Other
 
     Other unlisted, specialty, or proprietary substrates.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Dissimilar Substrates?
 
     Adhesive or sealant systems can bond dissimilar substrates such as metal to rubber. 
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
Industry/Applications




   Industry:       
   Your choices are...
 
      
 
   Aerospace
 
     Products are designed for aerospace applications. For example, they can be used to bond composite structures to other composite or metallic frame components.
 
   Automotive
 
     Products are designed for automotive applications. For example, they can be used to bond panels and seal windows.
 
   Electronics
 
     Products are designed for electronics applications. For example, they can be used in potting or encapsulating compounds, conductive adhesives, and dielectric sealants.
 
   Electrical Power / HV
 
     Products are resins, compounds and plastic composites suitable for electrical power or high voltage applications such as generator or motor assemblies, coil or transformer manufacturing, and switch or circuit breaker insulation.
 
   Optoelectronics / Photonics
 
     Products are designed for optoelectronics or photonics applications such as cements for bonding simple lenses into compound structures.
 
   Semiconductors / IC Packaging
 
     Products are designed or suitable for semiconductor or semiconductor packaging applications.
 
   Laminating / Composites
 
     Products are designed for constructing laminating strip structures or SCRIMP matrix resins for composite construction. SCRIMP is an acronym for Seemann composites resin infusion molding process.
 
   Marine
 
     Products are designed for marine applications. They can be immersed in water and withstand exposure to marine atmospheres.
 
   Medical / Food (Sanitary / FDA)
 
     Products are suitable for medical or food-contact applications. They typically comply with requirements from regulatory agencies such as the Food and Drug Administration (FDA), U.S. Department of Agriculture (USDA), National Science Foundation (NSF), 3A-Dairy, Canada AG, or USP Class VI.
 
   Military / Government (MIL-SPEC / GG)
 
     Products adhere to U.S. military specifications (MIL-SPEC).
 
   OEM / Industrial
 
     Products are designed for use by original equipment manufacturers (OEMs) for the assembly, sealing or fabrication of products.
 
   Repair (MRO) / Construction
 
     Products are designed for use by construction contractors and in maintenance, repair and operation (MRO) applications. Adhesives or sealants can be designed for general-purpose construction or architectural applications. Construction materials include wood, wood products, glass, cement products (mortar, concrete, masonry), plaster board, metal trim, flooring tile, sub-floor or underlayment, plaster board, sheet metal roofing or flash, metal ties, insulation materials (fiberglass, foam) and bitumen-based roofing materials. 
 
   Tooling / Mold Material
 
     Products are designed for tooling or mold fabrication such as polyurethane shapes or castable silicones.
 
   Other
 
     Other unlisted industry.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
Material System




   Chemical / Polymer System Type       
   Your choices are...
 
      
 
   ABS
 
     Acrylonitrile-butadiene-styrene (ABS) is a hard, rigid, thermoplastic polymer. It provides good chemical and creep resistance along with dimensional stability. ABS is used in many industries and in a wide array of applications. It is generally inexpensive, but prone to crack under stress. Common trade names include Cycolac® (GE Plastics), Lustran® (Bayer) and Novodur® (Bayer).
 
   Acetal / Polyoxymethylene (POM)
 
     Polyacetal or polyoxymethylene (POM) provides a higher strength material compared to polyethylene-type polymers; however, polyacetal materials are susceptible to oxidation at elevated temperatures. DuPont’s Delrinregistered: ® is a common polyacetal engineering resin that is also used to mold plastic parts.
 
   Acrylic / Polyacrylate
 
     Acrylic polymers are formed by polymerizing acrylic acids through a reaction with a suitable catalyst. Acrylics are known for excellent environmental resistance and fast-setting times compared to other resin systems.
 
   Bitumen / Coal Tar
 
     Bituminous substances are hydrocarbons that occur naturally as tar, or are derived as by-products during petroleum or coal refining. Coal tar is derived from the distillation of bituminous coal.  Bituminous adhesives are used in roofing and construction applications due to their water resistance and low cost. 
 
   Butyl (Polyisobutylene / Polybutene)
 
     Elastomeric materials are based upon or use a butyl, polybutene or polyisobutylene chemical system. Chlorinated isobutylene or chlorobutyl can be used alone or in blends with other polymers to achieve special properties. Butyl is a common term used for the isobutylene isoprene elastomer. It is known for its resistance to water, steam, alkalis, and oxygenated solvents. Butyl has low gas permeation and is capable of providing high-energy absorption (dampening) and good hot tear strength. The suggested operating temperature is -75° to 250° F.
 
   Cellulosic / Cellulose
 
     Polymers are based on a cellulosic or cellulose chemical system. Cellulosic thermoplastics are often used to form plastic films for packaging applications.
 
   Ceramic / Inorganic Cement
 
     Compound or material systems are based on a ceramic or inorganic cement system.
 
   Cyanoacrylate
 
     Cyanoacrylates are one-part acrylate adhesives that cure instantly on contact with mated surfaces through a reaction with surface moisture. Cyanoacrylates are often called super-glues. They have high strength and excellent adhesion to a wide variety of substrates, especially plastics. Potential disadvantages include poor shock or impact resistance (brittleness) and poor gap-filling abilities. Cyanoacrylates that are modified with rubber or elastomers have overcome some of these problems.
 
   Epoxy (EP)
 
     Epoxy resins exhibit high strength and low shrinkage during curing. Epoxies are known for their toughness and resistance to chemical and environmental damage. Most epoxies are two-part resins cured at room temperature. Some thermally cured or thermoset one-part epoxies are also available. Depending on the formulation, epoxy resins are used as casting resins, potting agents, resin binders or laminating resins in fiberglass or composite construction. They are also used as encapsulants, electrical conductors in microelectronic packaging, and adhesives in structural bonding applications.
 
   Ethylene Copolymer (EEA, EVA, EBAC)
 
     Ethylene copolymers include (poly)ethylene acrylate acid (EAA), (poly)ethylene methyl acrylate (EMAC), (poly)ethylene ethyl acrylate (EEA), (poly)ethylene vinyl acetate (EVA), (poly)ethylene butyl acrylate (EBAC), (poly)ethylene vinyl acetate (EVA or EVAC), (poly)ethylene vinyl alcohol (EVAL or EVOH), and (poly)ethylene propylene terpolymer (EPM).
 
   Glue / Gum
 
     Animal glues include hide glues, casein or milk protein glues and fish-based glues. Hide glues are produced by hydrolysis or by boiling collagen, protein or gelatin from animal bones, hide, hooves or horns. Collagen, hide glue and gelatin are very closely related in terms of protein and chemical composition. Casein-based adhesives (carpenter's glues) are derived from milk.  Vegetable glues are made from plant-based proteins or modified starches. Soy protein glues are finding increased application. 

Gum adhesives or mucilage are based on polysaccharides derived from various plant exudates such as an oleoresin or gum resin.  Gum adhesives are gelatinous when moist and harden on drying. Gum adhesives are the salts of complex organic acids.  Mucilage contains proteins and polysaccharides and is similar to vegetable plant gums adhesives.  Mucilage is a gelatinous substance extracted from legumes and seaweeds.
 
   Fluoropolymer (PTFE / PVDF)
 
     Polymers are based on fluoropolymer chemical systems such as polytetrafluoroethylene (PTFE) or polyvinylidene fluoride (PVDF).  Fluoropolymers are used in applications requiring superior chemical resistance.  PTFE is used in applications requiring superior chemical resistance or low friction. 
 
   Ionomer
 
     Thermoplastics are based on the ionomer polymer system. 
 
   Isoprene / Polyisoprene
 
     Natural rubber is based on the polyisoprene or isoprene chemical system.  Synthetic or man-made versions of isoprene are also available.
 
   Liquid Crystal Polymer (LCP)
 
     Liquid crystal polymers (LCP) are thermoplastics with high strength and temperature resistance. Liquid crystal polymers are used in electrical, electronic and medical applications where the high cost of the material is not an issue.
 
   PEEK / Ketone
 
     Ketones encompass polyaryletherketone or polyetheretherketone (PEEK).  PEEK is an engineered thermoplastic that can resist high temperatures. It has excellent chemical resistance, fatigue resistance, and thermal stability. PEEK is inert to all common solvents and resists a wide range of organic and inorganic liquids. PEEK has a maximum continuous working temperature of 480°F and retains its mechanical properties up to 570°F in steam or high-pressure applications.
 
   Phenolics / Formaldehyde Resins (Melamine, Furan, etc.)
 
     Phenolic and formaldehyde resins are thermosetting molding compounds and adhesives that offer strong bonds and good resistance to high temperatures. Phenolic or phenol formaldehyde, urea formaldehyde, furan and melamine resins fit into this category.  Phenolic resin adhesives made from chemicals of the phenol group and formaldehyde are generally are the most durable. Phenolic resins are available in liquid, powder, and film form. Special phenolic resins are available that harden at moderate temperatures when mixed with suitable accelerators. Phenol-formaldehyde, resorcinol-formaldehyde, resol and novalac resins are types of phenolic resins. Urea resin adhesives are made from urea, formaldehyde and catalysts or hardeners. Urea formaldehyde resins can harden rapidly at moderate temperatures, but generally do not have the properties of phenolic resins. Melamine resins are made through a reaction of dicyandiamide with formaldehyde.  Most of the resins in this group have excellent dielectric properties.  Furan formaldehyde (FF) resins are made by the polymerization or poly-condensation of furfural, furfural alcohol, or other compounds containing a furan ring, or by the reaction of these furan compounds with other compounds (not over 50%). Fire-retardant furans are used in hand lay-up, spray-up and filament winding operations. Furans are commonly used in foundry binders, grinding wheels, refractories and other high temperature applications.  Furan resins and chemicals are also used in fiberglass composites, hybrid resins combined with epoxy or phenolics, and in corrosion-resistant cements.
 
   Polyamide
 
     Polyamide is a commonly used system for molding high-strength engineered components. Polyamides are also used to produce strong hot-melt adhesives. Polyamides provide higher strength than polyethylene or other commodity-type polymers.  Nylon is a well-known example of a polyamide engineering resin that is also used to mold plastic parts.
 
   Polyamide-imide (PAI)
 
     Polyamide-imides are amorphous thermoplastic materials with excellent mechanical properties, especially at elevated temperatures. Trimellitic anhydrides react with aromatic diamines to produce polyamide-imides. Polyamide-imides are applied in demanding engineering applications. Solvay Advanced Polymer's Torlon® is a well-known example of a polyamide-imide engineering resin that is also used to mold, extrude or machine plastic parts, or shape stock.
 
   Polybutadiene
 
     Polybutadiene is a commonly used polymer system with dielectric potting compounds and coatings. It can be combined with other rubber polymers to form flexible sealants. Polybutadiene remains flexible even at low temperatures.
 
   Polycarbonate (PC)
 
     Polycarbonate is an amorphous material with excellent impact strength, clarity, and optical properties. Polycarbonate has excellent mechanical properties, and can be molded to tight tolerances. Polycarbonates can be attacked by solvents and petrochemicals. Brand names include Caliber® (Dow) and Lexan® (GE) as well as Makrofol® and Makrolon® (Bayer).
 
   Polyethylene (PE, HDPE, UHMW PE)
 
     Polymers or resins are based on the polyethylene chemical system. Low density polyethylene polymers are used to form a variety of common or commodity-plastic components. High density (HDPE) and ultra-high molecular weight polyethylene (UHMW PE) have good friction and mechanical properties. They are used in medical devices, wear parts, and engineered components.
 
   PET / PBT (Thermoplastic Polyester)
 
     The polyethylene terphthalate (PET) and polybutylene terphthalate (PBT) polymer systems are based on a thermoplastic polyester or terphthalate system.
 
   Polyester / Vinyl Ester
 
     Thermosetting resins or plastics are based on the polyester (alkyd) or vinyl ester system. These materials should not be confused with thermoplastic polyesters or PET resins.
 
   Polyether Block Amide (PEBA)
 
     Polyether block amide (PEBA) resins are a type of polyamide with thermoplastic elastomer characteristics. PEBA can be molded to form flexible components such as hydraulic hose, pneumatic tube, boots, and other parts.
 
   Polyetherimide
 
     Polymers or thermoplastic compounds are based on the polyetherimide chemical system. 
 
   Polyimide / Bismaleimide (BMI)
 
     Products are based on thermoplastic polyimide resin or thermoset bismaleimide (BMI) resin. Aromatic polyimides are among the most thermally-stable organic materials. DuPont’s Kapton® film materials are an example of thermoplastic polyimide. Polyimide thermoplastics and BMI thermoset resins have high temperature resistance. Bismaleimide (BMI) resins have processing characteristics similar to epoxy resins and are used as laminating resins, prepregs, and adhesives.
 
   Polyolefin
 
     Polyolefin is broad term encompassing several specific linear polymer types.
 
   Polyphenylene Oxide (PPO)
 
     Polymers or thermoplastics are based on the polyphenylene oxide (PPO) chemical system. 
 
   Polyphthalamide / Aramid (PPA)
 
     Thermoplastics are based on a polyphthalamide or aromatic polyamide system with a highly crystalline or linear nature. Aramid fibers are based on a polyphthalamide system. DuPont’s Kevlar® fibers are an example of aramid fibers.
 
   Polypropylene (PP)
 
     Polypropylene (PP) is commonly used in hot-melt adhesive systems. PP is a polymer based on polypropylene chemical bonds.
 
   Polysulphide
 
     Polymer resins or compounds are based on polysulfide or polyphenylene sulfide (PPS) chemical systems. 
 
   Polysulphone
 
     Sulphones include polysulphones, polyarylsulphones and polyethersulphones.
 
   Polyurethane (PU, PUR)
 
     Polyurethane (PUR) resins provide excellent flexibility, impact resistance and durability. Polyurethanes are formed through the reaction of an isocyanate component with polyols or other active hydroxyl group compounds. Polyurethanes require a catalyst, heat, or air evaporation to initiate and complete curing. 
 
   Silicone
 
     Plastic compounds, elastomer resins or polymers are based on the silicone chemical system. Silicones are produced through the hydrolysis and polymerization of silanes and siloxanes.
 
   Starch / Starch Paste
 
     Starches and starch pastes are derived from flours or vegetable matter. Starches are useful additive materials for thickening and other functions.  Pastes are commonly applied in light duty adhesive application on paper products such as envelopes, stamps, labels or paper packing tapes.  Starch-based pastes are low cost, non-toxic and water activated. In their dry state, water-activated adhesives are not sticky, but upon wetting become adhesive.
 
   Styrene / Polystyrene
 
     Polymers are based on a styrene or polystyrene chemical system.
 
   Styrene Copolymer (SIS / SBS)
 
     Products are based upon a styrene copolymer system such as styrene acrylonitrile (SAN), acrylic styrene acrylonitrile (ASA), acrylonitrile ethylene styrene (AES), styrene maleic anhydride (SMA), styrene-isoprene-styrene (SIS), styrene-butadiene-styrene (SBS), or styrene butadiene rubber (SBR).
Styrene butadiene rubber (SBR) has good resistance to petroleum hydrocarbons and fuels. SBR is used widely with oils, hydraulic fluids, and alcohol. Many compound variations are available for specific applications. The suggested operating temperature for SBR is -30° to 275° F. Styrene-isoprene-styrene (SIS) and styrene-butadiene-styrene (SBS) copolymers are commonly applied in pressure-sensitive adhesive applications.
 
   Vinyl (PVC / PVA / PVDC)
 
     Polymers are based on the vinyl chemical system. Examples include polyvinyl chloride (PVC), polyvinylidene chloride (PVDF), polyvinyl vinyl acetate (PVA), and polyvinyl alcohol (PVOH). 
 
   Wax Based
 
     Sealants or binders are based on a wax compound.  Wax binders are commonly used to bind ceramic or metal powder during compaction processes because wax binders lubricate and burn off thoroughly. The original hot melt compounds were based on paraffin waxes.
 
   Rubber Based / Elastomeric
 
     Products use a rubbery or elastomeric bond system. Elastomers and rubber materials are characterized by their high degree of flexibility and elasticity (high reversible elongation). Natural rubber, synthetic rubber or elastomer sealants and adhesives can be based on a variety of systems such silicone, polyurethane, chloroprene, butyl, polybutadiene, isoprene or neoprene.
 
   Specialty / Other
 
     Other specialty, proprietary or unlisted resin, chemical system or compound or polymer type.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
Features




   Features       
   Your choices are...
 
      
 
   Cast / Cast Stock
 
     Products are in the form of a cast stock or shape such as cast nylon or polyamide rod or plate.
 
   Extruded / Extrusion
 
     Products are in the form of an extruded stock or shape such as a nylon or polyamide extrusion.
 
   Flame Retardant / UL 94V-0 Rated
 
     Products are flame retardant in accordance to Underwriters Laboratories, Inc. (UL) Flame Class 94V-0 or other equivalent ISO standards. These materials reduce the spread of flame or resist ignition when exposed to high temperatures. They also insulate the substrate and delay damage to the substrate.
 
   Flexible / Dampening
 
     Products are designed to provide flexibility or dampening of sound, vibration or shock in suitable applications. Flexible adhesives or sealants form a layer that can bend or flex without cracking or delaminating.
 
   Molded / Molded Stock
 
     Products are in the form of a molded stock or shape such as compression-molded composite rod or plate.
 
   Non-corrosive Cure
 
     Silicone or reactive systems use a non-corrosive cure system such as a metal or oxime catalyst.
 
   Phase Change
 
     Thermal interface materials use a phase change to enhance thermal characteristics or heat absorption from electronic devices or electrical components.
 
   Solvent Based (Volatile Organic)
 
     Solvent-based adhesive resins use a volatile organic solvent (VOC) to thin or alter viscosity. Typically, solvent-based adhesive resins result in greater environmental or regulatory control problems. Solvents can also present a fire hazard or risk explosion, depending on the plant or job site.
 
   UL Approved
 
     Products are approved to or recognized under the requirements of Underwriters Laboratories, Inc. (UL).
 
   Water Based / Latex Dispersion
 
     Water-based or water borne adhesive resins are water soluble or water emulsion-based resin systems that typically do not contain any VOC solvents. Water-based adhesive resins usually present fewer environmental or regulatory control problems.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
Processing & Physical Properties




   Gap Fill
 
     Gap fill is the spacing or gap between the substrate that the adhesive or sealant can accommodate.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Viscosity
 
     Viscosity is a measurement of a fluid's resistance to flow.  Water is lower in viscosity than motor oil or honey. Oil is lower in viscosity than tar or molasses.  Depending on the application method, viscosity determines how well a resin fills the cavities or voids in a mold.   
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
Thermal Properties




   Use Temperature
 
     Use temperature is the range of temperatures to which products can be exposed without the degradation of structural or other required end-use properties.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Thermal Conductivity
 
     Thermal conductivity is the linear heat transfer per unit area through a material for a given applied temperature gradient. Heat flux (h) = [thermal conductivity (k) ] x [temperature gradient (Delta T)]
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Coeff. of Thermal Expansion (CTE)
 
     Coefficient of linear expansion (CFE) is the amount of linear expansion or shrinkage that occurs in a material with a change in temperature.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
Mechanical Properties




   Tensile Strength (Break)
 
     Tensile strength at break is the maximum amount of stress required to fail or break the material under tension loading test conditions. Tensile tests are typically performed according to test procedure standards such as ASTM D-638 or ISO 527-1, ASTM D-1708, ASTM D-2289 (plastics at high strain rates), and ASTM D-882 (thin plastic sheets) as well as other OEM proprietary standards. 
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Elongation
 
     Elongation is the percent amount of deformation occurring during a tensile test or other mechanical test.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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