Glass terms
From LowPriceAutoGlass.wiki, a sourced handbook on Jacobs Low Price Auto Glass, 8835 South Central Expressway, Dallas, and on heat, glazing marks, film law and glass claims in Texas
At a glance: Short, sourced definitions of 25 words that appear across this handbook, from ADAS and the AS-1 line to urethane and vent glass[2][4][3].
Read this first: this handbook is written by outside editors, not by Jacobs Low Price Auto Glass. Claims the shop makes about itself are marked as its own; federal rules, Texas statutes, NOAA records and industry bodies carry the technical facts. Call (214) 372-9300 to confirm hours, stock or a quote before you go. Our editorial policy explains how sources are weighed.
Terms A to Z
- ADAS
- Advanced driver assistance systems, such as automatic emergency braking and lane departure warning, often using a camera mounted behind the windshield[1].
- Aftermarket glass
- Glass made by a company other than the vehicle maker to fit the same opening; it must still meet FMVSS 205[2].
- AGRSS
- The Automotive Glass Replacement Safety Standard, maintained by the Auto Glass Safety Council; members commit to it in writing[3].
- AS-1 line
- A line marked near the top of a windshield; Texas allows windshield film only above it or within five inches of the top, whichever is closer to the top[4].
- AS1, AS2
- Glass designations from ANSI/SAE Z26.1, the standard adopted by FMVSS 205; AS1 glass may be used in a windshield[2].
- Comprehensive coverage
- The Texas auto coverage that pays for damage other than collision, such as hail, theft, vandalism and flying gravel[5].
- CLUE report
- The Comprehensive Loss Underwriting Exchange record of a driver’s claims; a free copy is available yearly from LexisNexis[5].
- Deductible
- The part of a covered claim the policyholder pays[5].
- DOT code
- The “DOT” symbol and a manufacturer code assigned by NHTSA, printed on certified glass[2].
- Drive-away time
- The minimum time a car should stay stationary after glass is installed so the adhesive can bond[3].
- Dynamic calibration
- Re-aiming a driver-assistance camera by driving the car under set conditions with a scan tool connected[6].
- FMVSS 205
- Federal Motor Vehicle Safety Standard No. 205, the US rule for glazing materials, covering factory and replacement glass[2].
- Frit
- The dark ceramic band around the edge of a windshield that shields the urethane from sunlight[7].
- Imperfect glass
- Safety glass with a flaw; in Texas it must be labelled “second” or “imperfect” in red letters at least an inch high[8].
- Laminated glass
- Two sheets of glass bonded to a plastic interlayer, usually PVB, so it holds together when broken; used for windshields[9].
- OEM glass
- Glass made by or for the vehicle maker, usually carrying its logo[10].
- Pinch weld
- The metal flange around the windshield opening to which the glass is bonded[11].
- PVB
- Polyvinyl butyral, the usual interlayer in laminated glass; it also absorbs most UV light that the glass lets through[7].
- Quarter glass
- A small fixed side window, often behind the rear door[12].
- Regulator
- The mechanism inside a door that raises and lowers the window glass; manual, cable or scissor type[13].
- Static calibration
- Re-aiming a driver-assistance camera in a workshop using targets placed at measured distances[6].
- Sunscreening device
- The Texas statute’s term for window film; it must carry a label stating its light transmission and reflectance[14].
- Tempered glass
- Heat-treated glass that breaks into small blunt pieces; used for most side and rear windows[15].
- Urethane
- The polyurethane adhesive that bonds a windshield to the body[16].
- Vent glass
- A small pivoting or fixed window at the front of a door, now often decorative[17].
How are these terms used here?
Each definition is short and points to its source; the longer explanation sits in the article named in brackets below. For glass marks see reading the glass label; for adhesives, urethane and drive-away time; for film, tint and window film in Texas; for insurance words, glass claims and your premium; and for weather numbers, Love Field heat data[2][5].
Related reading
- Common questions
- Love Field heat data
- Reading the glass label
- Urethane and drive-away time
- Repair or replace
Sources cited
- ^ Understanding the Importance of Calibration: What are the Facts?. Auto Glass Safety Council. Verified 9 November 2026.
- ^ a b c d e f 49 CFR 571.205, Standard No. 205: Glazing materials. Electronic Code of Federal Regulations. Verified 9 November 2026.
- ^ a b c Minimum Drive-Away Times. Auto Glass Safety Council (SafeWindshields.org). Verified 9 November 2026.
- ^ a b Texas Transportation Code § 547.613, Restrictions on Windows. Public.Law (text of the Texas statutes). Verified 9 November 2026.
- ^ a b c d Auto insurance guide. Texas Department of Insurance. Verified 9 November 2026.
- ^ a b Windshield Calibration After Replacement Explained. Jacobs Low Price Auto Glass (lowpriceautoglass49.com). Verified 9 November 2026.
- ^ a b Windshield. Wikipedia. Verified 9 November 2026.
- ^ Texas Transportation Code § 547.608, Safety Glazing Material Required. Public.Law (text of the Texas statutes). Verified 9 November 2026.
- ^ Laminated glass. Wikipedia. Verified 9 November 2026.
- ^ Find Out How Much a Windshield Replacement Costs in Dallas. Jacobs Low Price Auto Glass (lowpriceautoglass49.com). Verified 9 November 2026.
- ^ The Windshield Replacement Process: What to Expect and How to Prepare. Jacobs Low Price Auto Glass (lowpriceautoglass49.com). Verified 9 November 2026.
- ^ Affordable Windshield Replacement Dallas (home page). Jacobs Low Price Auto Glass (lowpriceautoglass49.com). Verified 9 November 2026.
- ^ Window Regulators and Motors Explained. Jacobs Low Price Auto Glass (lowpriceautoglass49.com). Verified 9 November 2026.
- ^ Texas Transportation Code § 547.609, Required Label for Sunscreening Devices. Public.Law (text of the Texas statutes). Verified 9 November 2026.
- ^ Tempered glass. Wikipedia. Verified 9 November 2026.
- ^ High-Quality Adhesives for Windshield Installment. Jacobs Low Price Auto Glass (lowpriceautoglass49.com). Verified 9 November 2026.
- ^ Specialized Glass Repair Dallas. Jacobs Low Price Auto Glass (lowpriceautoglass49.com). Verified 9 November 2026.
Common questions
What is the difference between AS1 and AS2 glass?
AS1 glass may be used anywhere, including the windshield; AS2 is for locations other than the windshield.
What is a frit on a windshield?
The black ceramic border that protects the adhesive from sunlight.