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Saturday, March 29, 2025

Exposing IG Unit Seal Failure

Yes.  Exposing seal failure.  Not what it is.  Because you know that!  And if your customers don't you can explain it easily enough.  But.  What really needs to be exposed here is the unbelievable frequency of this problem.

Just did a job a month ago with IG units.  They were all from possibly the seventies.  Only about a quarter inch vac in between the two plates.  I didn't find a single one that had failed.  Could not believe it!

Fast forward to the present time about 50 years later.  Technology has dramatically increased the space in between.  More insulation so this is better!  Right?  Wrong!  And we now have triple units along with many other new high tech "advances".  The seals are blowing out left and right.  Windows are fogging in front of our eyes.  When I built my house I told them, look guys I am a window cleaner of many many years.  Do NOT put IG units in.  So they didn't listen to me.  After only a single year half had lost their seals.  Warrantees will only pay for the units.  Not the replacement cost.  And are usually only good for one year.  Unless you pay big bux.  Then you can get protection for 5, 10, 15, and maybe 20 years.  No one wants to contribute to your grief however.  And still your warrantee will only pay for the windows.

Want to know the real crap shoot?  Windows can come straight from the manufacturer with bad/failed units!  Which are impossible to identify since the vapor captured inside is rather minimal.  Over time you will definitely see it.  The problem can be detected with a block of dry ice.  But who knows this and knows how to do it properly?  And who wants to spend the time to do it?  Definitely NOT the glorified Home Inspector.      

You know windows can come straight from the manufacturer with smoked insides.  That can only be seen in the direct sun next to a perfect window when both have been perfectly cleaned.  Windows can come with huge oily thumbprints in between,  Swirls and streaks from improper cleaning during the manufacturing process.  And one man told me last week, that he seen a big old fat dead bug in between.

Another problem I have detected is the absence of the Low E coating.  My customer was charged for it but never got it.  I am sure the window sales company was sure they were selling Low E windows.  But had no clue exactly how to make sure of this.  And no desire to learn how.  So the burden falls on the customer.

One last failure that I don't want to miss here.  Ever see that pink spotted look in the direct sun?  This is the damage condensation will do to a Low E coating.  It is in between.  Can't be fixed.  Can start almost invisibly.  But unless the building owner has the windows cleaned by a Glass Smart professional window cleaner they will not even have a clue what they are looking at.  They might even think they just have a dirty window.  Or a dirty window that they just can't seam to rub clean.

So get out there and EXPOSE!

Copy/Paste this article and send it out to all your customers on your email list.

Email me with any questions at henrygrover222@gmail.com 

Henry/Hank your choice



Practice Total Glass Care and stop the PIF!

A PIF stands for Point Indent Fracture.  And EVERY scratch starts with one.  Even light scratches.  A PIF also does not have to include a scratch.  But PIFs can be rather dangerous.  Especially the larger ones that look like bug crap and have crack legs.  Which a digital field microscope will show.  You can get one between 50 and 100 USD that will connect to your phone with an app off the net for free and allow you to store the images or videos.  This is what I did for some of my earlier posts on this blog. 

No one wants or needs a PIF!  Especially when the window costs 10 K to replace!  Most people don't know the PIF is a PIF or even what it is or how dangerous it can be.  So they try to rub it off.  This can cause the window to crack in at least two large pieces in about a microsecond.  A kid could walk by and press on it out of curiosity.  Same thing.  Not good!  My brilliant idea (maybe) would be to slap a vinyl sign over it advertising something.  Out of sight out of mind the saying goes.


So every time you clean windows look for those PIFs.  And always bring them to the attention of the owner.  You might end up saving them thousands of dollars.  This is what Total Glass Care is all about.  And while I am at it.  Lets make the windows more slippery so they don't incur any scratches.  No scratches no PIFs remember?  Well this is another topic for another post on this blog.  But let me say this to get your attention.  Ordinary dish soap can prevent scratches.  If you do it right.  But you would not want this answer.  The soap comes off in rain and the effect is lost.  Now certain hydrophobic sealants also work well.  But they too will wear off.  Some other products will not.  Want to go down this trail with me?  Then stay tuned.  Or write me at henrygrover222@gmail.com 

Practice Total Glass Care and stop the PIF!


Henry