Rattle can spraying

[proze]

Morning all. I have a question on rattle can technique. I wanted to paint my lower triple. I cleaned and degreased it, sprayed it with etch primer, then with Hammerite matte balck. It looked lovely, but the finish is incredibly fragile! I just lightly bumped it a cement surface and it chipped off! I imagine stones/road crud will destroy it. How does one get a tough finish?

[shiftin_gear98]

Unfortunately not with a rattle can.

[R1ffR4ff]

As Shiftin Gear says Rattle cans are single pack paint and are not that robust.Most commercial paints are ,"Two-Pack" which is Paint and hardener.We use,"Triple Pack" paints now on Aircraft.

However High Temp engine Matt Black is more robust than most Rattle can paint so you can give that a go and it's also easy to maintain/Respray when it looks shoddy.

Word of warning though.If you ever going to spray a different paint onto another you should make a small test piece and spray that with the original paint and let cure and then paint on top of that with the new paint to see if there's a reaction as not all paints are compatible with each other.

Paint spraying in all forms is a process and has more variables than people think and cannot be rushed.

[Bibio]

put a 2 pack matt lacquer on it. the stuff is hard as fek. you can get it made up into spray cans but you must use it pretty much straight away when you get it as they mix the hardener in with the lacquer.

[andy650]

Ive used Simonize Tough Black to good effect. Looks great and is tough enough for a bottom yoke.

[Chaplain]

Por50 is made in spray cans now. Kinda expensive, like $20 per can. You can also bake small items in your oven. Not advisable if married.....ask me how I know.

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[proze]

Thanks all, I'm going to sandblast it back down to metal and try some Simonize Tough Black. I'll let you know how it goes.

[Chaplain]

Thanks all, I'm going to sandblast it back down to metal and try some Simonize Tough Black. I'll let you know how it goes.Steel-it is coming out with murder black color. That stuff is amazing, it's like 80% stainless steel in a can.

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[proze]

Wow, that looks epic. But I don't see anyone selling it in the UK? Nevermind in black.

[R1ffR4ff]

Rustoleum make some great paints.

https://www.promain.co.uk/metal-paints-and-primers/heat-resistant-paint.html


I used some of their Synthetic oil based Green Rattle can on a Honda CX Colour change I did,

https://i.imgur.com/wq8LNbN.jpg

https://i.imgur.com/JyUpBJJ.jpg


It's more robust than normal Rattle can paint but still needs care if used on a fuel tank as although it won't melt if fuel gets on it it does mark but the marks can be compounded out so the paint is,"Serviceable".Of course fuel tanks should have Twin-Pack activated paint or clear-coat applied but it's a decent half-way house cheap solution.

[proze]

I normally use acetone as the last step before primer. Is that correct?

[R1ffR4ff]

I normally use acetone as the last step before primer. Is that correct?

Acetone is an excellent pre-spray wipe.

Just prior to spraying we use,"Tac-Cloths" once cleaned,

https://www.toolstation.com/shop/Painting+%26+Decorating/d150/Dust+Sheets+%26+Protectors/sd3258/Prodec+Tack+Cloths/p27935


to make sure there's no dust or debris on the Surface.Lightly run across the surface.You can get quite a bit of life out if them on small jobs like these by using one side of them and then unfolding and then using the other side.


Here's how one of my old CX500 rebuilt engines looked after I'd re-painted it using Plastikote High Temp Satin Chrome domestic Radiator paint which is an Excellent High temp paint.Bigger picture of my present Avatar.


https://i.imgur.com/wOYwzcC.jpg

[Heratat]

Wow, that looks fabulous! How much stuff have you wasted in order to do such a beauty? I thought on repainting my SV650 and thank god I didn't dive straight into it but first tried on a shoestand. Definitely wasn't born to be a painter...

[Heratat]

I'm going to ask questions that may look super stupid. But. How much acetone do I need? Cuz when I spray paint afterwards, it tends either to go in lumps or make stains.

[proze]

So last night I had a go with the Simoniz Tough Paint in satin black. I prepped the triple on the weekend. Yesterday it just got a wipe down with solvent. I heated the rattle can in warm water and the triple with a hair-dryer before each coat. Time will tell how tough it is, but the initial finish is lovely! Very chuffed.

[R1ffR4ff]

So last night I had a go with the Simoniz Tough Paint in satin black. I prepped the triple on the weekend. Yesterday it just got a wipe down with solvent. I heated the rattle can in warm water and the triple with a hair-dryer before each coat. Time will tell how tough it is, but the initial finish is lovely! Very chuffed.

Nice one.I use the,"Hair-dryer" trick and the Can in a Pan of warm water all the time.I also use the Hair-dryer when I'm bodging with twin pack adhesives to speed up curing :)

For cosmetic paint maintenance you can use some quick bodge tricks.Keep old supermarket plastic bags and stuff them around the area that needs touching up to stop over-spray.Cut a small piece of card around 4" or 6" square.Hold in one had as moveable masking.

Then you only have to use masking tape on those parts that really need it.Any little bits of over-spray just wipe off with thinners.

If you need to touch up small spots like on frames etc get a small pencil/artist brush (https://www.ebay.co.uk/itm/12-x-POINTED-ARTIST-BRUSH-SET-Small-Large-Art-Paint-Brushes-Thin-Thick-Detailed/202325598938?epid=2254769631&hash=item2f1b8ba2da:g:5gQAAOxytBZSSFiD).Spray some of the Aerosol paint into the Can lid and dip your brush in it :)

[proze]

I'm contemplating spraying the fork-bottoms with this Simoniz paint, but I'm still unsure on its durability in the face of road dirt/stones/crud. Assuming they've been prepped properly (sanded, cleaned) and then etch-primed and the paint applied, will more layers of paint make them tougher? I read an article that suggested many layers of both primer and paint, up to 8 or 9 layers of paint!

[R1ffR4ff]

I'm contemplating spraying the fork-bottoms with this Simoniz paint, but I'm still unsure on its durability in the face of road dirt/stones/crud. Assuming they've been prepped properly (sanded, cleaned) and then etch-primed and the paint applied, will more layers of paint make them tougher? I read an article that suggested many layers of both primer and paint, up to 8 or 9 layers of paint!


Once you've got a decent coat of primer on there's no need to make that thicker.On the Top coat spray a,"Grip/Dust Coat" and leave for 5 mins.Then apply first light coat.

Then leave again for 5 mins and repeat in 5 or 10 min intervals.I would say you won't get much benefit with Rattle can paint after about four coats.

However as per previous post you can maintain the paint by Mask and Touch up when it becomes damaged and just paint the areas that are visible with a touch-up coat.All you need to do is 500 grit-wet to dull it/key the surface and make good when needed.

Rattle cans can't compete with a Pro Twin-pack system or Powder coating but it can look good and kept looking good with a little sprucing up from time-to-time :)

Remember to keep all metal parts and the paint above a minimum of 15 Deg C.That's about the usual no-paint-below-temp and the higher the better.