It is most unfortunate that CD does not have Krown as a sponsor so this topic could recieve a sticky.
Here is a history of Krown.
The idea was invented by a Canadian airline pilot who flew for TWA. He made a deal with TWA to spray all their transatlantic aircraft due to ocean salt. The company he formed was Lear Chemical. This pilot also happened to have a summer place at Shallow Lake just north of Owen Sound. Consequently, the first RUST CHECK was started outside Shallow Lake attached to a local autobody. Soon after, this pilot realized he did not have the time to run a retail franchise operation so he sold the operation to a bunch of guys that turned out to be dead beats. However, the deal was they were to use the chemical spray from Lear.
After years of a few planned bankruptcies by the Rust Check dead beats and watering down of the chemical and a very long litigation, all the Rust Check dealers were released from their non competition clauses and Krown was formed as a co-operative.
Now it is not a perfect world and Krown dealers differ so beware, however the two sprays they use are vastly superior to those of Rust Check. As for the Krown dealer at Markham and Eglinton, if they are the old Polish or Ukrainian couple from Leaside that have the shop tucked away at the back of a plaza on the southeast corner, they are the original Rust Check people of the entire GTA and are beyond excellent.
The Krown people in Owen Sound are the original Rust Check ppl period. That's where I get my vehicles done. The Army gets all their vehicles done there as well from the ultra modern Army base outside of Owen Sound that occupies 20 miles of prime Georgian Bay water front and that was stolen from the locals in 1942.
Krown applications are more like $135.00 I believe plus tax. If I was in the GTA I'd get it done every 2 years.
Krown is best applied in summer as heat allows the chemical to creep faster/further. June is a good month because the dealers are dead at this time. Bad time is fall, anytime from Sept. 1 to X-mas is very busy and obviously the opportunity to spend more time on each car is not there.
For the 99% of you ppl that never see the undersides of your car and the massive and complex wiring connectors and harnesses, particularly with automatics, together with brake lines and fuel lines, it might be hard to rationalize this service. However, any mechanic can tell a Krown car and to a lessor extent a Rust Check car when it is lifted up in the air. Everything is in such better condition namely the electrical connectors and the steel hydraulic lines regardless were the car has been driven.
Civics do not have galvanized steels fenders or inner fenders and are most in need of this service regardless were they are operated. Porsche are all galvanized.
Owner's who actually do the spraying have the best service. Krown shops are like Midas; some good some not.
The drilling of holes is a complete non issue.
Remove your trunk liner yourself before you go. Chances are you will get a better application.
Tell the Krown shop to load up your trunk lid. Some don't because ppl complain that it's too messy.