nickypea
New member
Hi, just as the title suggests, what is the difference with automotive two PAC car paint and any of the two part boat paint?paint
what's the difference between two PAC automotive paint and boat paint?
- Thread starter nickypea
- Start date
Rigger Mortice
N/A
Very little other than the range of colours, finishes (mainly metallics), and application methods (boat paints are commonly applied by brush and roller. The "gloopiness" of the paint and/or range of thinners needs to take this into account.)
Daydream believer
Well-known member
About £30-00 a gallon dearer if it has marine on the tin
nickypea
New member
Thought as much! Are they the same polyurethane based paint or are there acrylic or something different?
GHA
Well-known member
Possibly price, I got some excellent 2 part car polyurethane in Trinidad which is holding up well on a steel boat 4 years later. Still wasn't cheap but cost less than Perfection.
Lakesailor
New member
2 packs are very nasty. Plenty of PPE required. Don't be in a position in which you can breathe the fumes.
Read this http://www.mig-welding.co.uk/forum/threads/2k-safety-leason-learnt.14051/
Read this http://www.mig-welding.co.uk/forum/threads/2k-safety-leason-learnt.14051/
Rigger Mortice
N/A
It's only a problem if the paint is sprayed. If it is applied by roller or brush normal work practices are fine.
30boat
N/A
Car paint is acrylic or polyurethane acrylic and is much softer that marine paints like International Perfection.
Lakesailor
New member
I wouldn't risk it. http://www.google.co.uk/url?sa=t&rc...fD56yEhAXvozVZ16w&sig2=_EFksq8usl7JwoZ8seFN1A (downloads .pdf)
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Gone sailing
New member
I have started useing automotive 2pac paint on mine with some good results. I have only used it for the last year but it seems to be holding up ok. I have also used it over old single component varnish with no obvious side effects so far....
I managed to get 9 coats onto my boom this year in one day!
Also so much cheaper than the "marine" equivilant.
I managed to get 9 coats onto my boom this year in one day!
Also so much cheaper than the "marine" equivilant.
William_H
Well-known member
Yet another alternative is plain 2 pack polyurethane industrial paint. That should be as cheap as possible but is still dear here. olewill
coopec
N/A
My attention is turning towards the problems of painting my yacht. I want the yacht to look good but accept it is a cruising yacht and not a show boat. When I approached the paint manufacturer/supplier I was alarmed at his draconian instructions for application. I pointed out that I would be spray painting it the open and using an approved mask. He said it was illegal to spray the paint in the open and professional applicators use space type suits ie head-to-toe. in an enclosed booth
The following came from the DULUX PC Tech Notes.
Although present at low levels, the diisocyanate monomer can pose health risks, if the polyurethane paint is not handled
properly.
It is important to note that the risks associated with the diisocyanate monomer should be considered in comparison with
risks in using alternative curing agents, and balanced with all other risks associated with the application of a typical
solvent-borne coating.
The use of polyurethane coatings should, in fact, be treated as any industrial process with stringent occupational health
and safety guidelines. If the user always followed their respective State Spray Painting Regulations and wore a well-fitting, positive-pressure, air-fed full-face respirator and overalls, safety shoes and solvent-resistant gloves, then they would not be at any risk at all.
What Are The Potential Hazards Of Isocyanates?
All chemicals have the potential to harm, if used incorrectly. (Even nutritional supplements can cause severe toxic effects if
misused.) However, if a polyurethane paint is handled in accordance with that product’s Material Safety Data Sheet and product specifications, no adverse health effects are expected. Symptoms or effects that may arise
if there is uncontrolled exposure to the product or if it is mishandled are described on the Material Safety Data Sheet as follows:
Ingestion:
Swallowing can result in nausea, vomiting and central nervous system depression. If the affected person is
showing signs of central system depression (like those of drunkeness) there is greater likelihood of that person breathing
in vomit and causing damage to the lungs.
Eye contact:
May be an eye irritant.
Skin contact:
Contact with skin may result in irritation. A skin sensitiser. Repeated or prolonged skin contact may lead
to allergic contact dermatitis.
Inhalation:
Material may be an irritant to the mucous membranes of the respiratory tract (airways). Breathing in vapour
can result in headaches, dizziness, drowsiness, and possible nausea. Inhaling high concentrations can produce central
nervous system depression, which can lead to loss of co-ordination, impaired judgement and if exposure is prolonged,
unconsciousness. Respiratory sensitiser. Can cause possible allergic reactions, producing asthma-like symptoms.
Of the above forms of misuse, inhalation is the most likely point of entry into the body.
http://www.duluxprotectivecoatings.com.au/technotespdf/2.1 Isocyanates.pdf
The following came from the DULUX PC Tech Notes.
Although present at low levels, the diisocyanate monomer can pose health risks, if the polyurethane paint is not handled
properly.
It is important to note that the risks associated with the diisocyanate monomer should be considered in comparison with
risks in using alternative curing agents, and balanced with all other risks associated with the application of a typical
solvent-borne coating.
The use of polyurethane coatings should, in fact, be treated as any industrial process with stringent occupational health
and safety guidelines. If the user always followed their respective State Spray Painting Regulations and wore a well-fitting, positive-pressure, air-fed full-face respirator and overalls, safety shoes and solvent-resistant gloves, then they would not be at any risk at all.
What Are The Potential Hazards Of Isocyanates?
All chemicals have the potential to harm, if used incorrectly. (Even nutritional supplements can cause severe toxic effects if
misused.) However, if a polyurethane paint is handled in accordance with that product’s Material Safety Data Sheet and product specifications, no adverse health effects are expected. Symptoms or effects that may arise
if there is uncontrolled exposure to the product or if it is mishandled are described on the Material Safety Data Sheet as follows:
Ingestion:
Swallowing can result in nausea, vomiting and central nervous system depression. If the affected person is
showing signs of central system depression (like those of drunkeness) there is greater likelihood of that person breathing
in vomit and causing damage to the lungs.
Eye contact:
May be an eye irritant.
Skin contact:
Contact with skin may result in irritation. A skin sensitiser. Repeated or prolonged skin contact may lead
to allergic contact dermatitis.
Inhalation:
Material may be an irritant to the mucous membranes of the respiratory tract (airways). Breathing in vapour
can result in headaches, dizziness, drowsiness, and possible nausea. Inhaling high concentrations can produce central
nervous system depression, which can lead to loss of co-ordination, impaired judgement and if exposure is prolonged,
unconsciousness. Respiratory sensitiser. Can cause possible allergic reactions, producing asthma-like symptoms.
Of the above forms of misuse, inhalation is the most likely point of entry into the body.
http://www.duluxprotectivecoatings.com.au/technotespdf/2.1 Isocyanates.pdf
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hartcjhart
Active member
mainly because they work with it all year round,for the occasional application a normal good face mask/respirator will do.
all chemicals including washing up liquid can pose a hazard to health if not used correctly,
buy your paint and ask the supplier to give you a copy of the COSHH data sheet for it
RichardTaylor
Member
COSHH can also take things to an extreme and the following COSHH sheet is a very good example of scaremongering on a totally safe product:
http://www.chemtek.co.uk/data_sheets/DISTILLED_WATER.pdf
I am not saying there is no place for COSHH and certainly with the paints above, any user MUST use them in an environment which is safe for the user, those around the user and the general environment.
http://www.chemtek.co.uk/data_sheets/DISTILLED_WATER.pdf
I am not saying there is no place for COSHH and certainly with the paints above, any user MUST use them in an environment which is safe for the user, those around the user and the general environment.
NornaBiron
New member
Having watched the degenerative effects of isocyanate paints on the respiratory system of my father (who sprayed cars for a living for most of his life), I personally would not risk spraying the paint without PPE - even once.
Lakesailor
New member
For those of you can't be bothered to read the link in post#6 I quote the story here
I worked for a firm which spray-applied elastomeric membranes. This same reaction happened to the bloke in the wagon who filled the materials hopper.
I worked for a firm which spray-applied elastomeric membranes. This same reaction happened to the bloke in the wagon who filled the materials hopper.
Pasarell
Well-known member
The difference is that automotive 2-pack paints are usually cellulose or acrylic resin based, or some hybrid. Marine 2 pack paints are usually polyurethane based although there are some hybrids available. In performance terms the polyurethane forms a thicker film, is harder when cured and has much better resistance to degradation from UV and salt water. Automotive paints are faster drying, have good gloss retention but will soften and loss both gloss and colour in a salty environment. For H&S purposes both are fine when brushed given use of basic PPE although it is difficult to achieve a good finish. Both should be treated with great respect if sprayed as the spray mist will be very toxic. Especially 2 pack polyurethanes where there will be free isocyanates released into the atmosphere with potential for the results described by Lakesailor above. Full air fed breathing equipment should be used by the applicator and work should be carried out in a properly equipped shed where extraction equipment removes the isocyanates before air is released. If the air is not cleaned before release then the isocyanates will be breathed by anybody downwind of the work area.
Automotive paints used on boats usually look just as good as 2 pack polyurethanes for the first year or 2 but after that they go dull and start to lose their colour. As they soften they are much more likely to be damaged by light bumps or scuffs
Automotive paints used on boats usually look just as good as 2 pack polyurethanes for the first year or 2 but after that they go dull and start to lose their colour. As they soften they are much more likely to be damaged by light bumps or scuffs
30boat
N/A
I was trying to make that point but it was ignored....
coopec
N/A
I didn't ignore you!!
I had considered automotive paint but you talked me out of it. Now I am wondering if William_H suggestion of the use of 2 pot polyurethane industrial paint is the way to go.
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Sans Bateau
Well-known member
That is a load of Bollox and is very dangerous ignorant advice. Anyone reading his thread should pay much attention to the information given by Lakesailor. I once (back in the early 80's) in ignorance used two pack Isocyanate paint to spray a van. I used a spray mask which had always proved to me more than adequate when spraying cellulose. During the evening after a days spraying I became ill, very ill and remained so for over a week.
