Exterior 1st Gen Most liked posts in thread: 3m Paint Defender - mixed results

How quickly does the nozzle buildup happen? If not too quickly, is it possible to monitor the buildup during the spraying process and wipe it from the nozzle before it becomes too large and drops on the surface? Just a thought.

 

Contact 3M and maybe tell them you want to give it another shot.... You are doing a DIY on a respected automotive forum and really want to post a successful project... Maybe they will offer a goodwill gesture and send some extra canisters for a "do over"...

Suggestion... Maybe wrap some absorbent material around the cannister up close to the nozzel... Maybe the buildup will be absorbed into the tee shirt or sponge etc.... Kind of looks like it builds up on the can until gravity takes over.... If you can get it to absorb... It might not drop on the treated surface...

Anyway... My $0.02....

 

Try immersing the can in semi hot water to warm up the liquid before you spray. It made my plastidip easier to use. Oh yeah, then shake the hell out of the can before you spray.

 

:cornut: Hmmmmmmmmmmmmm................I'll just bump and wait for the paint/body/fender people to come along.

Jason

 

I look forward to your next attempt. I am planning to do mine as well. I was thinking of doing the whole hood so I don't have the line.

 

How many cans did it take for the hood?

 

Does it say anything about can temps for best results?

 

http://3mauto.com/media/pdf/paint_defender_DFU2.pdf

The directions don't reference a can temperature but do specify an ambient air temp between 65*-90* F. The instructions state that a continuous spray will lessen the likelihood of this buildup, but they also say that any resulting clumps should even out during the drying process - which doesn't seem to be the case.

I read a few reviews of this product, thinking I might use it on my new Countryman when it arrives. I found the biggest complaint to be the buildup around the nozzle. For some, as seen above, this buildup can result in large droplets forming and falling onto the surface to be coated.

Looking forward to OP's second attempt to see if this is something I should attempt vs. paying someone to apply a clear bra.

 

Hmmmm...
Wonder if that started happening 15 seconds after the product went live...

 

What about a spray handle to help even out the spray, like a plasti dip type (scroll down to the bottom of the page)?

https://www.dipyourcar.com/home.php?cat=36

 

This will absolutely fix the build up, clumping issue.

When spraying anything from a rattle can I always set the cans out in the sun for a few hours. The thicker the product (undercoating, PlastiDip) the warmer I like the can. Warm liquids flow better that cold just think about maple syrup.


When I try this product later this year I am going to do even spraying but I am going to check the spray tip after each pass. The fan (spray pattern) should be between 8 and 12 inches wide. When they say continuous spray they just don't want you stopping half way across what you are spraying because it will leave a ridge.

In my many years of painting things, including cars, I have learned never try to cover too much too fast. It will always lead to runs and build up spots.

Many light thin wet warm coats of any product will dry smooth as glass every time.

 

I agree. As long as the spray is still wet stopping to clear the nozzle is a non event. I saw his car this morning and without the clumps this stuff looks great!