Community Forums

Gary.Jones · 10-22-2015, 05:03 PM

I have previously started a thread about a white, nasty looking stain running down my Diamond Shield. For all intents and purposes, it looked like a large bird did his business above my coach and it ran down the front. In the previous thread, I had pictures (consult previous thread). In fact, this stain was worst in the exact middle of the front windshield, but there were additional streaks at both bottom corners of the windshield. Unsightly, and not nice. Mine began shortly after I took possession of the coach. Entegra customer service was familiar with the issue but their suggestions to use vinegar and water, use windex, use a ton of elbow grease, all did little or nothing. Worse yet, if you ran your fingers over the stain, it felt, and looked, like the white stain was behind the Diamond Shield as well as on top of it.

Just finished 10 days at Camp Entegra and they called the Diamond Shield tech that works at their assembly plant to look at my coach. The long and short of it is that he was able to remove this ugly stain by the use of some liquid compound (he could not give me (or wouldn't) the name, but it was in a bottle like a mustard or ketchup bottle and was very liquid with very small grit). Now, he said that you had to use a buffer with a slow rotation and work it carefully with little pressure, but he got it all off without ruining the Diamond Shield. Beautiful!! Now he said to be very careful as a fast buff wheel would grind right into the Diamond Shield.

Finally, he said that whatever that stain was coming from (seemed to be from something behind the rubber windshield seal), he felt that the longer it stayed on the Diamond Shield, the more that it appeared to "etch" the diamond shield. His opinion was to get it off as soon as you can get it done competently (which is why I wanted the Diamond Shield tech himself to do the fixin'....) Also, he gave me a small sample of "303" uV protectant to use on the Diamond Shield on a regular basis.... I buy the stuff by the gallon and use it exclusively on the rubber tires for uV protection ), but it was nice to get the "go ahead" and encouragement to use it on the Diamond Shield also..

So.............. that is what I know. I know that I am not the only person with the problem, so this is to add to the collective knowledge-base.

Gary

dave&ginny · 10-22-2015, 05:20 PM

I'm glade you got that resolved and thanks for the heads up

Ann n Gene · 10-22-2015, 06:00 PM

My 2015 Cornerstone had those stains. Got them off with several products and a ton of elbow grease. They have not shown up on my 2016 yet and I hope they don't.

2016 Cornerstone 45B
Formerly 2011 & 2013 Anthems and 2015 Cornerstone
2014 Lincoln MKT towed

Rotis · 10-22-2015, 06:33 PM

I have the same problem. I used some very fine rubbing compound and went slowly. Once I got it removed I've been using Wash/Wax All on it, that has made it easy to remove.

DebbieMH · 10-22-2015, 07:00 PM

Gary - glad you got it taken care of. Sorry you are missing the rally because of it, though.

757driver · 10-23-2015, 09:20 AM

Gary,

Thanks for the update, glad you finally found a solution. By the way 303 protectant is one of the few products Diamond Shield recommends for their film.

bill cody · 10-24-2015, 01:32 PM

Gary After visting with you and I had worked in a body shop for a # of years I belive that it is the sanding dust from the fiber glass of the cap opening of the frount window opening they probley had to sand some thing on the windshiled opeing and did not clean it up after sanding.

Wayne

Gary.Jones · 10-24-2015, 05:05 PM

Wayne

Nice to talk to you today. I agree with your hypothesis exactly. I have advanced that theory to the techs and service managers at Entegra, but their faces indicated that they didn't believe in my hypothesis...... but it sure makes sense. Could even be happening at the front cap manufacturer rather than at Entegra production facility. I would wash any sanding down with Acetone to get a complete clean surface but that is an hypothesis.

Gary