COSHH SHEET 42 by 4ibl3Fk

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									                                                              COSHH SHEET 42

                             SURFACE FINISHES:

                          SOLVENT-BASED PAINTS -

                                   AEROSOLS


Brand Names

Applicable to: acrylic paints, rust proofing, flourescent paints.

Uses/Processes

Many different paints are available in cans to be applied as aerosols. These
finishes are very convenient for objects small enough to be placed in a large
cardboard box (on its side) to contain the over-spray. Zinc-rich primers often
contain toluene in the solvent mixture, others contain up to 35% of xylene.
Possible other constituents include MEK, acetone and alcohols. The
propellant is usually butane.

Assessment

Toluene (methyl benzene) and xylene (dimethyl benzene) vapours are
harmful by inhalation, causing headaches, dizziness and nausea. The OES
for toluene vapour is 50 ppm (8 hr TWA). These values can easily be
exceeded if zinc-rich primer is used extensively.

Xylene and acetone (propanone) are irritating to the eyes, skin and respiratory
system. The OES for xylene vapour is 100 ppm (8 hr TWA) and 150 ppm (15
min ref period). These values could be exceeded if aerosol paints are used
extensively.

The OES for acetone is 750 ppm (8 hr TWA) and 1500 ppm (15 min ref
period). These values would not be exceeded in typical use.

Methyl ethyl ketone (MEK or butanone) is irritating to the eyes and respiratory
system. Splashes to the eye will cause discomfort and possible damage.
Prolonged contact with the skin may have a defatting (drying) effect which
may lead to skin irritation and dermatitis.

All types use extremely flammable solvents and propellants.

Controls

Use of zinc-rich primer should be avoided unless local exhaust ventilation is
available or it is practicable to work in the open air.
Other paints can be used on a small scale in areas with good general
ventilation.
Eye protection must be worn and skin contact avoided.

All naked flames and other ignition sources must be removed before using
aerosol finishes.

Storage

In a cool, dry, well ventilated place, away from ignition sources. Up to 50
litres of highly flammable liquid can be held in small containers in a fire-
resisting highly flammable liquids cupboard or bin.

Disposal

An authorised waste disposal contractor should be used.

Immediate Remedial Measures

If paints are swallowed: DO NOT INDUCE VOMITING. Keep casualty at rest
and obtain medical attention.

If vapour is inhaled: Remove casualty to fresh air. Keep warm and at rest. If
breathing is irregular or has stopped, administer artificial resuscitation. Obtain
medical attention.

If sprayed into eyes: Irrigate immediately with water for at least ten minutes,
holding eyelids apart. If discomfort continues, obtain medical attention.

If on the skin: Remove contaminated clothing. Wash skin thoroughly with
soap and water or use a proprietary skin cleanser. Do not use solvents.

								
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