Technical notes
What buyers ask, answered properly
Short technical pieces for importers, distributors and specifiers — the questions that decide whether an order repeats. No product pitches in the body text.
UV Protection Window Film: What It Protects, and What It Cannot Save
UV rejection is the easiest number to publish and the easiest to oversell. Fading is not a UV problem alone.
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Filming a Glass Curtain Wall: Access, Movement and the Panes You Cannot Reach
A curtain wall is not a big window. It moves, it drains, and half of it cannot be reached from inside.
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How to Survey a Building Before You Quote Window Film
Most film jobs that go wrong were priced from a photo and a pane count. The six measurements that decide whether a quote is profitable are all taken on site — and none of them takes more than a few minutes.
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Can You Put Window Film on Low-E Glass? What Double Glazing Changes
Low-E glass is not a reason to refuse the job. It is a reason to ask three questions before you quote it.
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Window Film for Commercial Buildings: The Business Case a Facilities Manager Can Defend
Facilities managers do not buy film. They buy a defensible number and a scope that does not close the building.
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How to Read a Window Film Test Report (and Spot One That Means Nothing)
Two suppliers quote the same TSER. One measured it on 6 mm clear float in a lab; the other copied a number from a brochure. The report is how you tell them apart — if you know which five things to look for.
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Specifying Window Film in Hot Climates: Gulf, Southeast Asia and Northern Australia
In a hot climate the film specification starts with weather, not with VLT.
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Window Film in Schools: Glare, Safety Glass and the Summer Programme
A school is not one building. It is a set of very different glazing problems with one unmissable deadline.
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Security Film: 4, 8 or 14 mil — and When Film Alone Is Not Enough
A film that holds glass together still lets the whole pane leave the frame. The difference between 8 mil and a tested system is anchorage.
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Storefront Film: Heat, Smash-and-Grab and the Lighting Problem After Dark
A shopfront is the one place where the day–night reversal costs somebody money.
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Film on High-Rise Glazing: Wind Load, Access and Why Tender Specs Go Wrong
Above about ten storeys, the film is the cheap part of the job. Access and risk are the cost.
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Buying Window Film from China: MOQ, Datasheets and the Questions That Save a Container
Most first orders do not fail on price. They fail on a specification that two parties read differently.
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Film on Sealed Units: What Changes Inside a Double-Glazed Pane
The film is on surface 4. The problem is on the spacer, 16 mm away.
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Exporting Window Film: Documents, Duties and the Mistakes That Stop a Container
The film is fine. The problem is usually a missing document and a pallet that cannot enter the country.
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TSER, SHGC and VLT: Why the Number on the Box Does Not Predict the Building
Two films with the same TSER can perform very differently on the same window, because TSER says nothing about where the energy goes.
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Reading a Window Film Test Report: Method, Substrate and What the Number Covers
Same TSER, different buildings. The number is a property of the film on a specific piece of glass.
ReadSpecification questions we can answer in one reply
Send the glass build-up and the application. We will come back with the film grade, the data for that construction and the MOQ.