Cross Linking Polymers any Guru's out there?

Status
Not open for further replies.
Joined
Feb 28, 2010
Messages
1,663
I questioned a company that I buy automotive detail products from, to why their "Sealant" hardly beads on my car after several applications.

So to back pedal a little bit, I use several different type of sealants on my car. I choose sealants over waxes because my car sits out, is a dark color, and I live in the desert. I believe under the conditions in which the car is in, sealants would hold up better. That is up for debate, so I wont go there in this help article.

So, as per the directions, car was washed, and cleaned. applied product by hand (my preference) with a foam applicator as thin as possible. Allowed product to dry on car 15-20 minutes then buffed off.

I wash the car a week later and the car hardly beads. Now, since around February of this year I have applied (from the same company) probably 10-15 coats of either their wax, with polymers added, polymer sealant, and the Acrylic cross linking polymer sealant, of which is supposed to be their top shelf product.

I was dissapointed to find that after a week, when I washed the car, it didnt bead to well. Their response was this, "Due to the cross linking technology of the polymers, when the car is wet, the polymers expand causing the beads to enlarge and appear that there is not much protection, though protection should not be measured by this method, to answer the question of beading, the cross linking polymers react to water by expanding. When the surface is dried they contract. Thus the reason why the beads are not as 'tight' as you would like them to be. There is no loss in protection due to this".

Now I am calling [censored] on this unless someone has some other insight on this?

I will tell you too, even with many coats of wax or sealants, the bugs and bird droppings are a real night mare for me. The car is dark blue, and I live in the desert where car covers are not practical due to wind variance that can be nothing to 40mph in a matter of an hour. So Car cover is out. I just keep it washed and polished and try to get the bird droppings off the best I can. Problem is, after a minute or two they already have etched into the paint. Some of the bugs too. I cant wash the car daily, and I cant always wipe the stuff off whenever I want, I mean, really??? Sometimes you just cant, due to work and such. This is a daily driven car, and by no means a garage queen.

Any help on this or any miracle products people have tried and felt they actually worked?? I am all ears. I am not putting up which products I have used to prevent brand bias. All I can say is they are a reputable brand, professional products, and I am no novice by no means with detailing. Not as anal as I used to be, but still very picky, but realistic when it comes to a DD car.

Any help would be much appreciated.


Jeff
 
swelling due to hydration is a possibility.

Whether it is a reasonable thing on a car surface that is sealed, I dont know.

Is the product old? Surface prepped correctly?
 
yeah car is clean and prepped for application. New bottles of product and I keep them in the house not in the garage. I dont strip the car of all previous applications per application mainly because I am sticking with the same brand of product and multiple layers should add to the protection, not compromise it. Especially when it comes to sealants.

I was using a excellent durable carnuba wax but when I bought this car the Carnuba was just a bear to use on this dark color car and required WAY more work, with not much added protection over the sealants. Its tough being in the garage for several hours applying products when its so hot, not only for the products but for me haha. In the heat the Carnuba dries too fast and streaks like something terrible. The sealants are easier to apply and remove in my application.

Jeff
 
Products Used within the last 6 months:

I just don't want to get into a brand bias war here is all.

Chemical Guys Brand: Producst used: M-Seal, and JetSeal 109. Prior to these applications was using SmartWax, and SmartSealant (also made by Chemical Guys).

Prior to this car, I used Collinite 845 and 915, but both of these streak very badly in the heat on my dark colored car. The bird droppings and bugs etched right through the Collinite like nothing was even there.

Jeff
 
Thanks appreciate it. The Jet Seal 109 states 2 coats initially. I did that. I put additional coats of either the M-Seal, or the Jet Seal on the hood, front bumper, headlights and roof weekly after every wash to add protection from bugs and bird droppings. I spray wax the rest. Every other week, the whole car gets a coat of SMARTWAX or one of the sealants.

Jeff
 
Last edited:
Originally Posted By: sasilverbullet
Ok, I'll ask my buds, will post results here.


Here's one response:
When I want to test beading I put water in a spray bottle and mist the surface.
What kind of soap do you use when washing? Maybe the soap you're using for maintenance washes is stripping the protection off.
Is the paint free of contamination? Maybe you need to claybar.
Also before I apply protection I do a wipe down with menzerna top inspection.. or you can do an IPA wipedown
 
I use meguiars gold class soap. .. love that stuff. Maybe I'm using too much soap? The water where I live is allot of alkaline so I use about 3-5oz for 4-5 gallons of water. Only way I can keep it sudsy.
 
Originally Posted By: sasilverbullet
Originally Posted By: sasilverbullet
Ok, I'll ask my buds, will post results here.


Here's one response:
When I want to test beading I put water in a spray bottle and mist the surface.
What kind of soap do you use when washing? Maybe the soap you're using for maintenance washes is stripping the protection off.
Is the paint free of contamination? Maybe you need to claybar.
Also before I apply protection I do a wipe down with menzerna top inspection.. or you can do an IPA wipedown


Many responses to your question - read all the posts here:
Link to post
 
Originally Posted By: Jeffs2006EvoIX
I use meguiars gold class soap. .. love that stuff. Maybe I'm using too much soap? The water where I live is allot of alkaline so I use about 3-5oz for 4-5 gallons of water. Only way I can keep it sudsy.


Follow the directions to a t as far as the proper mix ratio. Gold Class has very good sheeting action which is probably what you're seeing. When it rains it should bead up though. Read the product description about the sheeting:

http://www.autogeek.net/mg7164.html

I use Duragloss shampoo that sheets very well. But when it rains the car has tight beads on it.
 
One other suggestion - I use Meguiars Car Wash, and I put about a capful of liquid NXT wax in the bucket also. That way every wash it "freshens" up the wax. Been doing this for 13 years with all my cars, works amazing!
 
I did not know the gold class soap Sheeted... that may answer that question. Thanks. Any advice on bird droppings?
 
There are also some sealants that sheet water rather than bead. I much prefer the sheeting action to beading. When the sun comes out after a rain it just bakes the beads into the paint and might even etch it.

As far as the bird caca and bugs maybe it's time to dump the Chemical Guys stuff and go with a coating. There's plenty to read if you google but you will need to strip the paint down to squeaky clean.

http://www.autogeek.net/optimum-opti-coat.html
 
Did you clay the car prior to applying the products you listed?

I've found that paint that feels smooth, may still be covered in sap or other contaminants. Using a claybar or a product such as Autoscrub Nanoskin is critical for maximum adhesion of the sealant or wax.

In my experience, if the paint is even lightly contaminated, the lifespan of the sealant or wax is a fraction of what it could be.
 
Status
Not open for further replies.
Back
Top Bottom