Solvents, Sealers and Adhesives

Solvents, Sealers and Adhesives

WARNING: ALWAYS HANDLE ALL SOLVENTS, SEALERS AND ADHESIVES WITH EXTREME CARE. SOME CONTAIN CHEMICALS OR GIVE OFF FUMES WHICH CAN BE DANGEROUS TO HEALTH. ALWAYS FOLLOW THE MANUFACTURERS INSTRUCTIONS. IF IN DOUBT ABOUT ANY SUBSTANCE, PARTICULARLY A SOLVENT, DO NOT USE IT.

CAUTION: If in doubt about the suitability of any proprietary solvent or sealer for a particular application, contact the manufacturer of the product for information regarding storage, handling and application.

The Solvents, Sealers and Adhesives subsection refers to some commonly used chemicals and materials, hazards associated with their use, and safety measures to be taken.

Adhesives and Sealers
Highly flammable, flammable, combustible - observe No Smoking policy.
Generally should be stored in No Smoking' areas. Cleanliness and tidiness in use should be observed e.g. disposable paper covering benches; should be dispensed from applicators where possible; containers, including secondary containers, should be labelled appropriately.

Solvent - based Adhesives/Sealers
Follow manufacturer's instructions.

Water - based Adhesives/Sealers
Those based on polymer emulsions and rubber latexes may contain small amounts of volatile toxic and harmful chemicals. Skin and eye contact should be avoided and adequate ventilation provided during use.

Hot Melt Adhesives
In the solid state, they are safe. In the molten state they may cause burns and health hazards may arise from the inhalation of toxic fumes.
Use appropriate protective clothing and a thermostatically controlled heater with a thermal cut - out and adequate extraction.

Resin - based Adhesives/Sealers e.g. Epoxide and Formaldehyde Resin - based
Mixing should be carried out in well ventilated areas, as harmful or toxic volatile chemicals may be released.
Skin contact with uncured resins and hardeners can result in irritation, dermatitis, and absorption of toxic or harmful chemicals through the skin. Splashes can damage the eyes.
Provide adequate ventilation and avoid skin and eye contact.

Anaerobic, Cyanoacrylate (Super - glues) and other Acrylic Adhesives
Many are irritant, sensitizing or harmful to the skin and/or respiratory tract. Some are eye irritants.
Skin and eye contact should be avoided and the manufacturer's instructions followed.
Cyanoacrylate adhesives (super-glues) MUST NOT contact the skin or eyes. If skin or eye tissue is bonded, cover with a clean moist pad and seek immediate medical attention. Do not attempt to pull tissue apart. Use in well ventilated areas as vapors can cause irritation to the nose and eyes.
For two - pack systems see Resin - based and Isocyanate Adhesives/Sealers.

Isocyanate (Polyurethane) Adhesives/Sealers
Individuals suffering from asthma or respiratory allergies should not work with or near these materials as sensitivity reactions can occur.
Over exposure is irritating to the eyes and respiratory system. Excessive concentrations may produce effects on the nervous system including drowsiness. In extreme cases, loss of consciousness may result. Long term exposure to vapor concentrations may result in adverse health effects.
Prolonged contact with the skin may have a defatting effect which may lead to skin irritation and, in some cases, dermatitis.
Splashes entering the eye will cause discomfort and possible damage.
Any spraying should preferably be carried out in exhaust ventilated booths removing vapors and spray droplets from the breathing zone.
Wear appropriate gloves, eye and respiratory protection.