@Taylor2313 - In the application of cavity wax, they call for 30 mil thickness. Not every shop is going to have an illuminated bore-scope so if you convert that to inches, think of it as 0.030” or 30 thousand of an inch after three passes of 1 inch (25.4mm) per second of application movement. If the vehicle lives in the salt belt, I might consider additional layers. Either way, you are trying to cover the metal, rust or both as a barrier from additional moisture but just exactly like you said, seal off from oxygen. My concern is how far do you go. If you could see inside, then you have an idea if there is any rust already. I definitely would take a wire to any weep hole or drain stamped into the panel two or three days later to make sure they are open. Just think, having an illuminated bore-scope connected to Bluetooth is better equipment than 7 of 10 plumbers have on their trucks. Maybe a neighbor is a “Proctologist” who has some used borescopes for sale! Lol.
They sell online for 50$ and are pretty good.. i got one and sealed the thing up with superglue where the cable goes inside and used it to find a break in my sewage line. Saved 250$ doing that.. plus after a wipedown with alcohol and a dousing with lysol i can use it for anything, just wind up the extra 100 feet of cable.. lol..
I had rust under windshield , so my bodyshop repaired the rust and painted panel finally , and said not to put cavity wax in this area , or else the silicone that holds the windshield will fail to get hold of windshield with the body panel , Was the bodyshop right ?
@Terror Billy - After 3 passes your film thickness should be 30 mils or 0.030” I think the rate of spray is one inch per second, so unless you have an illuminated borescope you won’t know what is already in there. If it is a unibody that lives in the rust belt then you may choose to apply more. Hope this helps answer your question. After all, you can’t cover everywhere rust from moisture, oxygen and road salts and other chemicals they use nowadays.
Hi Steve. Cavity Wax can be applied over rusty steel. However, it will not stop or convert rust. It will aid in preventing new moisture getting in and creating more corrosion and attacking the panel further.
Repaired some dodgy bondo fixes on my car, welded those parts instead and sprayed cavity wax to inner side. 3 years and no corrosion so far!
Ryan, is the man! Great video on proper use of cavity wax.
You should mention the flash time between coats. I know better, but some may see the video and assume there is no flash time.
Outstanding
Assuming some slight surface rust inside the cavity, can the Cavity Wax be applied and in theory eliminate the oxygen to the surface rust?
@Taylor2313 - In the application of cavity wax, they call for 30 mil thickness. Not every shop is going to have an illuminated bore-scope so if you convert that to inches, think of it as 0.030” or 30 thousand of an inch after three passes of 1 inch (25.4mm) per second of application movement. If the vehicle lives in the salt belt, I might consider additional layers. Either way, you are trying to cover the metal, rust or both as a barrier from additional moisture but just exactly like you said, seal off from oxygen. My concern is how far do you go. If you could see inside, then you have an idea if there is any rust already. I definitely would take a wire to any weep hole or drain stamped into the panel two or three days later to make sure they are open.
Just think, having an illuminated bore-scope connected to Bluetooth is better equipment than 7 of 10 plumbers have on their trucks. Maybe a neighbor is a “Proctologist” who has some used borescopes for sale! Lol.
They sell online for 50$ and are pretty good.. i got one and sealed the thing up with superglue where the cable goes inside and used it to find a break in my sewage line. Saved 250$ doing that.. plus after a wipedown with alcohol and a dousing with lysol i can use it for anything, just wind up the extra 100 feet of cable.. lol..
I had rust under windshield , so my bodyshop repaired the rust and painted panel finally , and said not to put cavity wax in this area , or else the silicone that holds the windshield will fail to get hold of windshield with the body panel , Was the bodyshop right ?
Thanks for the info.
Does 3M make a cavity epoxy primer?
is this better than fluid films?
Четкая тема! 👍👍👍👍👍
Can this stuff be sprayed on top of rust?
@Terror Billy - After 3 passes your film thickness should be 30 mils or 0.030” I think the rate of spray is one inch per second, so unless you have an illuminated borescope you won’t know what is already in there. If it is a unibody that lives in the rust belt then you may choose to apply more. Hope this helps answer your question. After all, you can’t cover everywhere rust from moisture, oxygen and road salts and other chemicals they use nowadays.
What would be ideal for something older that you want to creep a protestant into
Can cavity wax be applied over rusty Steel
Hi Steve. Cavity Wax can be applied over rusty steel. However, it will not stop or convert rust. It will aid in preventing new moisture getting in and creating more corrosion and attacking the panel further.
@@3MCollision ok thanks for the reply
So then it can be applied over a rust converter..? But i guess if it seals from moisture and oxygen then no more further oxidation…