What does a heat-rejection percentage tell you? Will a paint protection film warranty pay for a rock chip? Does a certificate tell you what an installer has actually been tested on?
These guides explain the terms behind the headlines. Start with your question, understand the practical difference, and find the documents that help you make a decision. You can also follow our latest window film news for product announcements, industry developments, research and events.
Choosing and identifying car window film
Window-tint heat ratings: infrared vs. total solar energy
A 99% infrared claim does not mean a 99% cooler car. Compare infrared rejection (IRR), infrared energy rejection (IRER) and total solar energy rejection (TSER), including the glass and test conditions.
How can I check which window film was installed?
Start with the exact product, receipt and warranty records. Understand what appearance and a meter reading can—and cannot—tell you.
Windshield protection film or window tint?
Learn the difference between a film intended to help protect exterior glass and a film chosen for solar control. Compare purpose, care and the applicable product terms.
Understanding paint protection film
PPF means paint protection film. These guides help you separate a surface feature, a protection claim and a warranty promise.
What can self-healing PPF actually repair?
Light surface marks, cuts through the film and damage to the paint need different responses. Find out what to ask before trying a repair.
Does a PPF warranty cover rock chips?
A ten-year paint protection film warranty may cover defects without paying for road-debris damage. Learn what to check in the written terms.
Colored PPF vs. vinyl wrap
Both can change a car's appearance. Compare the actual materials, protection claims and installation proposal before deciding which fits your goal.
8 mil vs. 10 mil PPF: what the thickness numbers mean
Convert mils to microns and check which layers a specification includes. A removable backing should not be confused with the film left on the car.
Choosing film for a building
How to read an NFRC window-film label
Learn which heat and daylight numbers matter, and why the glass used for the rating matters when comparing films.
Security window film tests: what does the rating cover?
Find out what was tested: the film, the glass or the whole window setup. Holding broken glass together, delaying entry and resisting bullets are different claims.
Bird-safe window film: patterns and test ratings
Compare the pattern, application surface and supporting evidence. Understand the difference between a controlled test score and results observed at a building.
Will a window-film savings claim apply to my building?
Find out whether a percentage describes the glass, one part of the cooling system or the whole energy bill.
How to read window-film research
Use five questions to understand what researchers compared, what they measured and what remains unknown.
Choosing training and understanding the industry
What does a certified window tint installer mean?
Learn how a course, a knowledge test, a practical assessment and a dealer relationship differ.
How to choose a window tint training course
Match a course to the work you want to learn. Ask about practice time, assessment, materials and support before paying.
Who owns LLumar, SunTek, Madico and Solar Gard?
See who owns familiar film brands and why shared ownership does not mean identical products or warranties.
Follow the story behind the question
Our product coverage, technology and research reporting and industry news provide dated examples. The explainers help you understand the terms those stories use. Each guide links to the sources behind its specific technical or company statements.