Spraying Rust Bullet with an HVLP gun...

[lowtideride]

I was looking for any advice since this is the first time using it in a spray gun.

~Tip Size?
~Thinning?

Any advice would be appreciated.

Thanks,
-Al

 

[85fjmule]

I have never used it but you got me thinking. I have used chassis saver and xylene to thin it. Here is what I came up with. It is from Rust Bullet UK. Looks like you can't thin it and they make a specific type for HVLP application.

http://www.rustbulletuk.com/application.php

The exact balance of viscosity, solvent, and active ingredients must be maintained; therefore, Rust Bullet must not be thinned. Thinning or adding any other product to Rust Bullet will compromise the performance and quality of the finished product.

 

[NikP]

I sprayed rust bullet with a HVLP gun and it was frustrating. Seemed to clog the gun even with a 2.0 tip. I ended up thinning with xylophone but wasn't happy with the end result (too much orange peel texture).

 

[lowtideride]

Thanks for the info. I have had a terrible time trying to apply it with brush or roller. It always seems to bubble. Hopefully spraying will show better results. I'll report after I give it a go.

What did you use to clean the gun afterwards? Just xylene?

 

[Rust Bullet]

Spray Rust Bullet Automotive

When applying with an HVLP spray system, use a 1.7 to 2.0 tip at 40-60 psi. Prior to spraying, run Rust Bullet Solvent or Xylene through the spray equipment to remove any moisture that is trapped in the sprayer. After each coat of Rust Bullet is applied, flush the gun or submerge the tip in Rust Bullet Solvent. The exact balance of viscosity, solvent, and active ingredients must be maintained; therefore, Rust Bullet must not be thinned. Thinning or adding any other product to Rust Bullet will compromise the performance and quality of the finished product. If absolutely necessary, you may thin Rust Bullet with rust Bullet Solvent, or Xylene, no more than 3%-5%

Please do not hesitate to contact us if you have any questions at all. 1-800-245-1600

 

[lowtideride]

I will make an attempt at not thinning it first. My DevilBliss gun likes the pressure around 30-35psi. Is Xylene fine to clean the gun with, or is there another product I could get off the shelf locally? This will avoid costly shipping at waiting time on my end. Thank you for your response.

 

[lowtideride]

Copied from their website.

NOTE: If Rust Bullet® Solvent is unavailable in your area, Xylene, Toluene or Acetone may be substituted.

 

[lowtideride]

Thought I would give an update. Always hated finding threads with no closure.

I ended up spraying RB with 1.8 tip at 29PSI at the gun. I also ended up thinning it 5 -10% with Xylene. It orange peeled because of the thicker viscosity and was dry to the touch in a few minutes.

I applied 3 thin coats. There was one spot on the inside of the bumper that bubbled because of being thick. Which is why rolling on or brushing on Rust Bullet never worked well for me.... it always bubbled. Spraying it in thin coats did not result in this.

Good luck to anyone in the future... hope this thread was at least a little help.

-Al

 

[Centermass]

Just found this thread and its been really helpful. I want to take my 79 down to bare metal and primmer it with rust bullet but wasnt looking forward to brushing it on the under side of the tub. I assume it can be used on bare metal without using a product like veri-prime to self etch the metal as a primer first. I seem to conflicking info on priming/ self ectching paint. I am not looking for a show rig just a rig that wont start rusting as soon as all the rusted areas have been removed and repaired.

 

[lowtideride]

RB should be applied to bare metal If you don't plan on using the whole container in one fell swoop get multiple small cans as it reacts with the air wildly quick and does not keep for long.

 

[Centermass]

Thanks I will keep that in mind. I talked my dad into using rust bullet on his 61 vette. He is putting custom steering and suspension on it and it's bare metal parts. I wanted to coat the I tire tube of my 40 with it after sand blasting.

 

[Splangy]

Thanks I will keep that in mind. I talked my dad into using rust bullet on his 61 vette. He is putting custom steering and suspension on it and it's bare metal parts. I wanted to coat the I tire tube of my 40 with it after sand blasting.

Use a good epoxy primer on your tub if you are sandblasting. It will far outperform any of the "rust" products.

 

[Centermass]

Splangy are you a speaking from professional advice or personal experience? I am only asking because there seems to be a lot of people speaking from others threads and not personal experience. Also I only want to take the cruiser apart one time to repair and replace panels. Thanks not meant to offend you

 

[Splangy]

Splangy are you a speaking from professional advice or personal experience? I am only asking because there seems to be a lot of people speaking from others threads and not personal experience. Also I only want to take the cruiser apart one time to repair and replace panels. Thanks not meant to offend you

I do this stuff as a hobby and not as a career, so I'm not a professional.

That said, look at what the pros use. They don't use POR, Rust Shield, Rust Bullet, etc...They take the panels down to bare metal and use quality 2K (epoxy) coatings.

Don't get me wrong, the "rust" products have their place. I've used them on my daily drivers where sandblasting an undercarriage isn't an option. They have no business on a body panel, however. These types of products are meant to be applied OVER rust to make it easier to treat. That doesn't mean that they prevent rust any better than any other quality automotive coating on a properly prepared (clean, bare metal) surface.