Primer Before VHT Paint?

[James1979]

For info. Cardboard burns at 400. That’s how we get customers to cure ours.

Burn cardboard for an hour then you’re good to go.

 

[pedrobedro]

Rough it up and do it with some Zebo or Stovax stove black, no messing about with curing and nobody will touch it after

 

[Blue Chips]

I was thinking of getting such an attachment for my Kärcher. What one did you get?
I've 50kg of blasting sand (proper stuff) sat here from my failed attempts with my underpowered compressor and when the sand kept clogging.

This is the attachment I have (link below) although I can't recall where I bought it. It works quite well, but as you can imagine, it can be messy and hazardous to have wet grit flying around under high pressure, so take proper precautions. If water trickles back into the suction tube, it can form a clog, but I found that keeping the attachment pointed downward when not blasting helps to prevent that. The sand must be kept very dry for proper suction. I haven't tried other wet-blast attachments, so I don't have anything to compare it with. Note the minimum working pressure requirement.

https://www.generalpump.com/wp-content/uploads/2017/10/DWSDBTK-Sandblast.pdf

 

[Onoff]

One side of this old oil drum is painted blue and it's quite thick & rock hard. Can't find my liquid paint stripper even.

Struggling with worn flap discs and cup brushes.

 

[James1979]

I used Simoniz on a small steel part, it was absolute rubbish and came straight off...
The part was clean, dry and grease free so not my fault!
Interested to find a decent rattle can hi temp paint that stays on..

I didn’t like to say but…. Yeah.

I tried them all. Like all of them. As this is a product I sell for good money.

Mipa is the only one worth using in my opinion.

I’ve got a good box of testers left I’d think. I may dig them out and post in the free section when I’ve a second.

 

[James1979]

One side of this old oil drum is painted blue and it's quite thick & rock hard. Can't find my liquid paint stripper even.

Struggling with worn flap discs and cup brushes.

View attachment 378568

Heat? Like a torch if possible. Get it gummy then scrape it off?

Wire wheel in a grinder?

 

[Onoff]

I persevered with assorted cup brushes in the grinder. Scrubbed in hot water and Fairy.

Drying off:

"Spray booth" set up:

Mist coat:

Not sure I'll get away with curing this off in the oven, it stinks.

 

[Onoff]

Taking a chance, Sod's Law I think I knocked the side you'll see getting it into the oven though

Pre heated the oven to 50degC. Plan is:

14.00 - 50degC
14.30 - 100
15.00 - 220
15.30 - Finish

 

[Onoff]

That baked off quite nice I think. As for its longevity we shall have to see!

https://flic.kr/p/2o8KQmG

Not too shabby considering it's origins:

https://flic.kr/p/2o8F9Nt

https://flic.kr/p/2o8LkkG

 

[James1979]

That baked off quite nice I think. As for its longevity we shall have to see!

https://flic.kr/p/2o8KQmG

Not too shabby considering it's origins:

https://flic.kr/p/2o8F9Nt

https://flic.kr/p/2o8LkkG

That came out alright.

Did you get in trouble for the curing process?

I would have done.

 

[Onoff]

That came out alright.

Did you get in trouble for the curing process?

I would have done.

Nah, she was asleep, still recovering from being ill. I'm blaming the smell in the kitchen from where I did the spraying in the boiler room...