Fisheyes from Diesel Heater?

[MetalMonkey]

That would tend to cause blistering rather than fish eyes though, which are more typical of silicones in the air.

Could be solvent pop because of changes in temperature and humidity - which does looks very similar to fisheyes.

@Burdekin Are the defects are there immediately on laying down the paint, or appear shortly afterwards or during the drying phase?
Unfortunately, it’s a rubbish time of year for hobbyist spraying – I try to only do it when the temperature is relatively consistent and not too extreme and can air dry naturally, which is somewhat of a challenge in this country.
More so, I suspect, at your end of the world..

 

[mart]

Fisheyes, care to explain...

I have heard of the fish eye effect from some types of camera lense. Like certain types of dash cams.

However, the OP is asking if anyone has ever had fish eyes?

 

[Burdekin]

Could be solvent pop because of changes in temperature and humidity - which does looks very similar to fisheyes.

@Burdekin Are the defects are there immediately on laying down the paint, or appear shortly afterwards or during the drying phase?
Unfortunately, it’s a rubbish time of year for hobbyist spraying – I try to only do it when the temperature is relatively consistent and not too extreme and can air dry naturally, which is somewhat of a challenge in this country.
More so, I suspect, at your end of the world..

It's definitely fish eyes and is 100% not from my spraying equipment or solvent pop. I tested it by spraying rattle can paint also on items and they occur so it's fisheyes. I never use to get anything when in the rear workshop spraying and I've moved my diesel heater. I use to have a hole drilled through the wall at the back workshop for the exhaust. It can be caused by a lot of things I know, hardest thing is finding the source but moving the diesel heater and putting a new hole will be better as well.

 

[mr haynes]

Suppose you could clean a scrap bit, sit near heater then try a scoosh with rattlecan.
May or may not give you an answer....

 

[bert]

Is it a diesel jet heater or a webasto style heater?

If webasto style I can't see it causing any issue the jet style is another thing

 

[8ob]

Is it a diesel jet heater or a webasto style heater?

If webasto style I can't see it causing any issue the jet style is another thing

I am no paintist but I can’t see the heater causing that problem, so many other possibilities.

Bob

 

[JOEPRO]

I use pre paint wipe to clean all panels thoroughly just before spraying. For me this ensures a clean panel ready for paint.

 

[bert]

I am no paintist but I can’t see the heater causing that problem, so many other possibilities.

Bob

Our jet style spits unburnt diesel out before it gets going so that could cause an issue. I run any heater for long enough that the panel feels warm to th touch. Then degrease and tack rag before painting.

I've not had any issues with it so far though

 

[Burdekin]

Suppose you could clean a scrap bit, sit near heater then try a scoosh with rattlecan.
May or may not give you an answer....

Going to move it and drill a hole so no exhaust can get in. It’s one thing to eliminate and I’m really careful so a bit of a mystery.

 

[Burdekin]

Our jet style spits unburnt diesel out before it gets going so that could cause an issue. I run any heater for long enough that the panel feels warm to th touch. Then degrease and tack rag before painting.

I've not had any issues with it so far though

I have always been super vigilant with cleaning, solvent and water based degreaser, methylated spirits/water and tac rag and never had a problem. The above doesn’t remove it, or not easy anyhow.

 

[JOEPRO]

@Burdekin

What heater are you using?

Do you have a blow heater type which includes fumes in air?

Or the Chinese Webasto copy ones with exhaust to outside?

Please clarify

 

[bert]

I have always been super vigilant with cleaning, solvent and water based degreaser, methylated spirits/water and tac rag and never had a problem. The above doesn’t remove it, or not easy anyhow.

Wet sand it out, use water with a little fairly liquid in it.

 

[bert]

@Burdekin

What heater are you using?

Do you have a blow heater type which includes fumes in air?

Or the Chinese Webasto copy ones with exhaust to outside?

Please clarify

From the reply it has an exhaust so its a webasto style heater

 

[8ob]

I have always been super vigilant with cleaning, solvent and water based degreaser, methylated spirits/water and tac rag and never had a problem. The above doesn’t remove it, or not easy anyhow.

The contamination is not in the compressor/lines is it ?

Bob

 

[Munkul]

Fish eyes in my experience are caused by silicon contamination somehow.
Any hammerite been near it?
Silicon sprays in the workshop?
Brand new airlines or something like that?

I don't think it would be your indirect diesel heater to blame. If anything it would be condensation causing solvent pop or clouding.