Accelerants alter a chemical bond, speed up a chemical process, or bring organisms back to homeostasis. Accelerants are not necessarily catalysts as they may be consumed by the process. An accelerant can be any substance that can bond, mix, or disturb another substance and cause an increase in the speed of a natural, or artificial chemical process.
Source: Wikipedia
The American National Standards Institute is a private non-profit organization that oversees the development of voluntary consensus standards for products, services, processes, systems, and personnel in the United States. The organization also coordinates U.S. standards with international standards so that American products can be used worldwide.
More Info: http://www.ansi.org/
Source: Wikipedia
ASTM is now known as ASTM International. ASTM International develops international standards for materials, products, systems and services used in construction, manufacturing and transportation. ASTM standard specifications and test methods define uniform requirements and procedures.
More Info: http://www.astm.org/
Source: ASTM International
A chemical that causes two other substances to form into one.
Source: Wiktionary
A bondline is just the layer of glue between objects. It's also sometimes called a glue line.
A measure of how much force or load an adhered joint can withstand.
A measure of how much force or load an adhesive can withstand internally while either wet or dry.
To apply pressure to a bonded joint without heat.
Curing is a term in polymer chemistry and process engineering that refers to the toughening or hardening of a polymer material by cross-linking of polymer chains, brought about by chemical additives, ultraviolet radiation, electron beam or heat. Note: also referred to as setting.
Source: Wikipedia
The amount of time it takes for an adhesive to cure / transition to its final hardened state.
An adhesive additive that helps to cure/harden the adhesive.
The Clean Water Act is the primary federal law in the United States governing water pollution. Passed in 1972, the act established the goals of eliminating releases of high amounts of toxic substances into water, eliminating additional water pollution by 1985, and ensuring that surface waters would meet standards necessary for human sports and recreation by 1983.
More Info: http://www.epa.gov/regulations/laws/cwa.html
Source: Wikipedia
Edge gluing commonly refers to the process of adhering multiple wooden boards together along their smaller dimensioned sides to form a larger board. This term may occasionally be used for other materials.
Elasticity is a physical property of materials which return to their original shape after they are deformed.
Source: Wikipedia
An elastomer is a polymer with viscoelasticity (colloquially "elasticity"), generally having low Young's modulus and high yield strain compared with other materials. The term, which is derived from elastic polymer, is often used interchangeably with the term rubber, although the latter is preferred when referring to vulcanisates.
Source: Wikipedia
The United States Environmental Protection Agency is an agency of the U.S. federal government which was created for the purpose of protecting human health and the environment by writing and enforcing regulations based on laws passed by Congress.
More Info: http://www.epa.gov
Source: Wikipedia
The flash point of a volatile material is the lowest temperature at which it can vaporize to form an ignitable mixture in air.
Source: Wikipedia
Flammable means capable of burning. Note: Inflammable (as in able to inflame) also means capable of burning.
The layer of adhesive between two surfaces.
Green strength refers to the ability of an adhesive to hold before it has completely cured.
Gum is a sap or other resinous material associated with certain species of the plant kingdom. This material is often polysaccharide-based and most frequently is associated with woody plants, particularly under the bark or as a seed coating. The polysaccharide material is typically of high molecular weight and most often highly hydrophilic or hydrocolloidal.
Source: Wikipedia
A hardener is a curing agent. A hardener is mixed with resin in two-part epoxies.
The Hazardous Materials Identification System is a numerical hazard rating that incorporates the use of labels with color-coded bars as well as training materials. It was developed by the American Coatings Association as a compliance aid for the OSHA Hazard Communication Standard.
Source: Wikipedia
The International Agency for Research on Cancer is an intergovernmental agency forming part of the World Health Organization of the United Nations.
More Info: http://www.iarc.fr
Source: Wikipedia
Inflammable means capable of burning (as in able to inflame). Note: Flammable also means capable of burning.
A reaction inhibitor is a substance that decreases the rate of, or prevents, a chemical reaction.
Source: Wikipedia
A tool for applying adhesives. It consists of a cylinder that spins around an axis/handle shaped somewhat like the letter "J".
A joint is the connection between two member elements in an object or structure. Woodworkers in particular use a variety of geometries to form different joints with tradeoffs in strength, aesthetics, and ease of assembly.
Lamination is the technique of manufacturing a material in multiple layers, so that the composite material achieves improved strength, stability, appearance or other properties from the use of differing materials. A laminate is usually permanently assembled by heat, pressure, welding, or adhesives.
Source: Wikipedia
Medium-density fibreboard is an engineered wood product formed by breaking down hardwood or softwood residuals into wood fibres, often in a defibrator, combining it with wax and a resin binder, and forming panels by applying high temperature and pressure. MDF is denser than plywood. It is made up of separated fibres, but can be used as a building material similar in application to plywood. It is stronger and much denser than particle board.
Source: Wikipedia
A substance that chemically changes another.
Moisture meters are used to measure the percentage of water in a given substance. This information can be used to determine if the material is ready for use, unexpectedly wet or dry, or otherwise in need of further inspection.
Source: Wikipedia
A material safety data sheet is an important component of product stewardship and occupational safety and health. It is intended to provide workers and emergency personnel with procedures for handling or working with that substance in a safe manner, and includes information such as physical data (melting point, boiling point, flash point, etc.), toxicity, health effects, first aid, reactivity, storage, disposal, protective equipment, and spill-handling procedures. MSDS formats can vary from source to source within a country depending on national requirements.
Source: Wikipedia
A thick gluey substance (gum) produced by many plants and some microorganisms.
Source: Wiktionary
The National Fire Protection Association is a United States trade association, albeit with some international members, that creates and maintains private, copyrighted, standards and codes for usage and adoption by local governments. This includes publications from model building codes to the many on equipment utilized by firefighters while engaging in hazardous material (hazmat) response, rescue response, and some firefighting.
More Info: http://www.nfpa.org
Source: Wikipedia
The National Institute for Occupational Safety and Health is the U.S. federal agency responsible for conducting research and making recommendations for the prevention of work-related injury and illness. NIOSH is part of the Centers for Disease Control and Prevention (CDC) within the U.S. Department of Health and Human Services.
More Info: http://www.cdc.gov/NIOSH/
Source: Wikipedia
A material with a surface that can't be penetrated by air, water, etc.
Nonflammable means not capable of burning.
The time period between applying an adhesive to materials and actually joining them together as one assembly.
The United States Occupational Safety and Health Administration (OSHA) is an agency of the United States Department of Labor. Congress established the agency under the Occupational Safety and Health Act, which President Richard M. Nixon signed into law on December 29, 1970. OSHA's mission is to "assure safe and healthful working conditions for working men and women by setting and enforcing standards and by providing training, outreach, education and assistance".
More Info: http://www.osha.gov
Source: Wikipedia
An evaluation designed to simulate accelerated aging of an adhesive inside of a high-pressure oxygen/air mixture. Adhesive manufacturers use such tests to verify the strength and elasticity of adhesives over time.
Particle board, also known as particleboard and chipboard, is an engineered wood product manufactured from wood chips, sawmill shavings, or even saw dust, and a synthetic resin or other suitable binder, which is pressed and extruded. Particleboard is a composite material.
Source: Wikipedia
The permissible exposure limit is a legal limit in the United States for exposure of an employee to a chemical substance or physical agent. For chemicals, the chemical regulation is usually expressed in parts per million (ppm), or sometimes in milligrams per cubic meter (mg/m3).
More Info: http://www.osha.gov/dsg/topics/pel/
Source: Wikipedia
The percentage of a solid or liquid that will evaporate at a standard room temperature of 70 degrees Fahrenheit.
Phenol formaldehyde resins (PF) are synthetic polymers obtained by the reaction of phenol or substituted phenol with formaldehyde. Phenolic resins are mainly used in the production of circuit boards. They are better known however for the production of molded products including pool balls, laboratory countertops, and as coatings and adhesives. In the form of Bakelite, they are the earliest commercial synthetic resin.
Source: Wikipedia
The property of a solid body whereby it undergoes a permanent change in shape or size when subjected to a stress exceeding a particular value (the yield value).
Source: Wiktionary
Plywood is a manufactured wood panel made from thin sheets of wood veneer. It is one of the most widely used wood products. It is flexible, inexpensive, workable, and re-usable, and usually can be manufactured locally. Plywood is used instead of plain wood because of plywood's resistance to cracking, shrinkage, splitting, and twisting/warping, and because of its generally high strength.
Source: Wikipedia
The term polymer encompasses a very large, broad classes of compounds, both natural and synthetic, with a wide variety of properties. Because of the extraordinary range of properties of polymeric materials, they play an essential and ubiquitous roles in everyday life, from those of familiar synthetic plastics and other materials of day-to-day work and home life, to the natural biopolymers that are fundamental to biological structure and function.
Source: Wikipedia
In polymer chemistry, polymerization is a process of reacting monomer molecules together in a chemical reaction to form polymer chains or three-dimensional networks. There are many forms of polymerization and different systems exist to categorize them.
Source: Wikipedia
Polyvinyl acetate is a component of a widely used glue type, commonly referred to as wood glue, white glue, carpenter's glue, school glue, Elmer's glue (in the US), or PVA glue. It should not be confused with the related polymer polyvinyl alcohol, which is also called PVA.
Source: Wikipedia
A material with a surface that can't be penetrated by air, water, etc.
A process applied to an adhesive joint after the adhesive has cured, usually involving heat, to further modify the adhesive properties.
A labe measurement of the period of time that an adhesive is usable after all ingredients, catalysts, etc. are mixed.
Personal protective equipment refers to protective clothing, helmets, goggles, or other garments or equipment designed to protect the wearer's body from injury. The hazards addressed by protective equipment include physical, electrical, heat, chemicals, biohazards, and airborne particulate matter.
More Info: http://www.osha.gov/SLTC/personalprotectiveequipment/
Source: Wikipedia
One part per million denotes one part per 1,000,000 parts, 1/1,000,000 * 100% = 0.0001% (or 1% = 10,000 ppm), and a value of 1 × 10−6. This is equivalent to one drop of water diluted into 50 liters (roughly the fuel tank capacity of a compact car) or about 32 seconds out of a year.
Source: Wikipedia
The time required for an adhered joint to be held under pressure while the adhesive is setting.
An initial coating applied to a surface to increase the hold of an adhesive.
The pound per square inch or, more accurately, pound-force per square inch / pressure per square inch is a unit of pressure or of stress based on avoirdupois units. It is the pressure resulting from a force of one pound-force applied to an area of one square inch.
Source: Wikipedia
This is a measure of pressure that includes standard atmospheric pressure at sea level (14.7 psi).
This is a measure of pressure that does not include any atmospheric pressure; it's the measurement that is given by a pressure gauge.
Reactivity is a somewhat vague concept used in chemistry which appears to embody both thermodynamic factors and kinetic factors i.e. 'whether or not a substance reacts and how fast it reacts'.
Source: Wikipedia
A recommended exposure limit (REL) is an occupational exposure limit that has been recommended by the United States National Institute for Occupational Safety and Health to the Occupational Safety and Health Administration (OSHA) for adoption as a permissible exposure limit. The REL is a level that NIOSH believes would be protective of worker safety and health over a working lifetime if used in combination with engineering and work practice controls, exposure and medical monitoring, posting and labeling of hazards, worker training and personal protective equipment.
Source: Wikipedia
A Release liner is a paper or plastic based carrier web material, which is coated on one or two sides with a release agent, which provides a release effect against any type of a sticky material such as an adhesive or a mastic. Release liner are available in different colors, with or without printing under the silicone or on the backside of the liner. Release is separation of the liner from a sticky material. A liner is the carrier for the release agent.
Source: Wikipedia
Resin in the most specific use of the term is a hydrocarbon secretion of many plants, particularly coniferous trees. Resins are valued for their chemical properties and associated uses, such as the production of varnishes, adhesives and food glazing agents.
Source: Wikipedia
Rosin, also called colophony or Greek pitch, is a solid form of resin obtained from pines and some other plants, mostly conifers, produced by heating fresh liquid resin to vaporize the volatile liquid terpene components. It is semi-transparent and varies in color from yellow to black.
Source: Wikipedia
A rubber or polymer-based adhesive that will chemically transform into a more durable substance after application without additional ingredients.
Same as 'cure'. Curing is a term in polymer chemistry and process engineering that refers to the toughening or hardening of a polymer material by cross-linking of polymer chains, brought about by chemical additives, ultraviolet radiation, electron beam or heat.
Source: Wikipedia
The amount of time it takes for an adhesive to set / transition to its final hardened state.
The amount of time a container of adhesive can be stored and remain useful. Same as storage life.
A solvent (from the Latin solvō, "I loosen, untie, I solve") is a substance that dissolves a solute (a chemically different liquid, solid or gas), resulting in a solution. A solvent is usually a liquid but can also be a solid or a gas. The maximum quantity of solute that can dissolve in a specific volume of solvent varies with temperature.
Source: Wikipedia
Squeeze out refers to any excess adhesive that comes out of a joint during assembly.
The condition of being stable or in equilibrium, and thus resistant to change.
Source: Wiktionary
A short-term exposure limit is the acceptable average exposure over a short period of time, usually 15 minutes as long as the time weighted average is not exceeded.
Source: Wikipedia
The amount of time a container of adhesive can be stored and remain useful. Same as shelf life.
The internal distribution of force per unit area (pressure) within a body reacting to applied forces which causes strain or deformation.
Source: Wiktionary
A structural adhesive is a glue that can be used in a load-bearing joint.
A surface to which a substance adheres.
Source: Wiktionary
Preliminary physical or chemical modifications to a substrate to enhance adhesive performance.
The stickiness of a compound, related to its cohesive and adhesive properties.
Source: Wiktionary
Amount of time during which an adhesive will remain adhered to itself under certain environmental conditions.
In simpler terms tear resistance (or tear strength) is a measure of how well a material can withstand the effects of tearing. More specifically however it is how well a material (normally rubber) resists the growth of any cuts when under tension, it is usually measured in kN/m. Tear resistance can be measured by the ASTM D 412 method (the same used to measure tensile strength, modulus and elongation). ASTM D 624 can be used to measure the resistance to the formation of a tear (tear initiation) and the resistance to the expansion of a tear (tear propagation).
Source: Wikipedia
Ultimate tensile strength (UTS), often shortened to tensile strength (TS) or ultimate strength, is the maximum stress that a material can withstand while being stretched or pulled before failing or breaking. Tensile strength is the opposite of compressive strength and the values can be quite different.
Source: Wikipedia
A thermoplastic, also known as a thermosoftening plastic, is a polymer that becomes pliable or moldable above a specific temperature, and returns to a solid state upon cooling.
Source: Wikipedia
A thermosetting plastic, also known as a thermoset, is polymer material that irreversibly cures. The cure may be done through heat (generally above 200 °C (392 °F)), through a chemical reaction (two-part epoxy, for example), or irradiation such as electron beam processing.
Source: Wikipedia
Usually a thinner is a liquid volatile organic compound (VOC) that can be added to an adhesive to adjust its properties. Note: volatile organic compounds can be toxic to inhale.
Having a chemical nature that is harmful to health or lethal if consumed or otherwise entering into the body in sufficient quantities.
Source: Wiktionary
A unique, branded name given to an adhesive by a particular manufacturer or supplier.
The Toxic Substances Control Act (TSCA) is a United States law, passed by the United States Congress in 1976, that regulates the introduction of new or already existing chemicals.
More Info: http://www.epa.gov/regulations/laws/tsca.html
Source: Wikipedia
An ANSI test to declare an adhesive "waterproof". The test involves extreme temperatures and humidity conditions, as well as a strength test.
An ASNI test to declare an ahesive "water resistant". The test involves multiple rounds of exposure to water and drying.
Ultraviolet (UV) light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than X-rays, that is, in the range between 400 nm and 10 nm, corresponding to photon energies from 3 eV to 124 eV. UV light is found in sunlight (where it constitutes about 10% of the energy in vacuum) and is emitted by electric arcs and specialized lights such as mercury lamps and black lights. It can cause chemical reactions, and causes many substances to glow or fluoresce. Certain inks, coatings, and adhesives are formulated with photoinitiators and resins. When exposed to the correct energy and irradiance in the required band of UV light, polymerization occurs, and so the adhesives harden or cure.
Source: Wikipedia
Usually refers to polyerethane. Any of various polymeric resins containing urethane links; used in very many industrial and domestic applications.
Source: Wiktionary
A quantity expressing the magnitude of internal friction in a fluid, as measured by the force per unit area resisting uniform flow.
Source: Wiktionary
Volatile organic compounds (VOCs) are organic chemicals that have a high vapor pressure at ordinary, room-temperature conditions. Their high vapour pressure results from a low boiling point, which causes large numbers of molecules to evaporate or sublimate from the liquid or solid form of the compound and enter the surrounding air.
More Info: http://www.epa.gov/iaq/voc.html
Source: Wikipedia
The state of having a low boiling point and evaporating readily.
Source: Wiktionary
A process by which rubber is hardened using heat and sulphur.
Source: Wiktionary
The period of time before an adhesive reaches a viscosity where it is too thick to apply effectively.