TC23C and TC23C/84A for 3M 6000 ------
Here are 3M Q&A about isocyanates:
Q.
Can I use organic vapour filters with isocyanate based compounds?
A.
The levels at which isocyanate can be detected by smell or taste are considerably higher than the Maximum Exposure Limit (MEL) as set by the HSE. There would be no indication of smell/taste that 'breakthrough' had occurred until an exposure higher than the MEL.
The safe solution would be to use an air fed system which supplies breathable quality air to the wearer rather than filtering out airborne contaminants. The 3M™ Visionair or S-200 Air Fed Systems could be considered for this type of application.
------
Q.
What respirator do I need when painting ?
A.
As there are so many different types of paint in common use it is very difficult to suggest one product for everything.
The main problems are vapours from the organic solvent carriers and particulates in the form of pigments and spray mist. In most cases brush or roller applying paint is less hazardous than spraying since a lesser amount of pigment and vapour will become airborne. We suggest the following filter selections for the more commonly occuring paint application groupings :
Powder coating – particulate filters or supplied air, depending on levels of contaminant.
Water based – particulate filters often combined with nuisance level organic vapour protection when low levels of solvent are present.
Solvent based with good warning properties – organic vapour & particulate filters.
2-pack isocyanate based – a minimum of a supplied air visor .
For specific product selection, please contact the 3M Health & Safety Helpline .
------
isocyanates are bad for our health - bad when inhaled and bad when allowed to make contact with the skin.
