# Windshield Chip Repair > Resin injection into small bullseye, star, and combination breaks to stop spread and recover clarity before a full glass replacement is needed. Source: https://fleetservicesocrv.com/services/glass-and-accessories/windshield-chip-repair Business: Fleet Services OCRV, 23281 E La Palma Ave, Yorba Linda, CA 92887 Phone: (714) 909-1844. Serving Santa Ana, California, about 17 miles from the facility. Windshield chip repair injects a curing acrylic resin into a break in the outer glass ply under vacuum and pressure, restoring most of the optical clarity and stopping the damage from spreading. It applies to small bullseye, star, and combination breaks that have not reached the interlayer or the glass edge. ## Specification - Price range: $90 to $220 - Labor hours: 0.5 to 1.5 hours - Turnaround: Light cosmetic - Insurance: commonly billed direct to the carrier ## Symptoms - Small impact point with a dark center that catches the light - Short radiating legs spreading out from a strike point - Circular separation ring roughly the size of a dime or quarter - New chip appearing after a run behind a gravel hauler - Existing chip growing a leg after a cold morning start - Driver reporting a glare artifact at a specific spot in the glass ## What is actually happening inside a chip? An impact break is a separation between the two glass surfaces at the point of strike. The dark appearance is not dirt, it is air. Light hits the void and reflects back rather than passing through, which is why a chip looks black even though nothing black is in it. Fill that void with a resin of matching refractive index and the break largely disappears. Getting resin into that void takes more than dropping it on the surface. A bridge tool seals over the break, pulls vacuum to evacuate trapped air and moisture, then reverses to pressure so resin migrates into every leg. Cycling between vacuum and pressure several times is what pulls the last air out of the tips of a star, which is the part cheap kits never reach. The resin is then cured under ultraviolet light, typically five to ten minutes, and the surface is scraped flush and polished with a pit filler. Done properly, an optical improvement of eighty to ninety five percent is normal on a fresh bullseye. What never comes back is the small residual pit scar at the exact strike point, and any shop telling you otherwise is overselling. - Break probed and classified before any tool is mounted - Moisture drawn out under vacuum before resin is introduced - Multiple vacuum and pressure cycles to fill leg tips fully - Resin viscosity chosen to match the break type - Ultraviolet cure under a controlled lamp, not sunlight - Pit filled, scraped flush, and polished at the strike point ## Which break types can be repaired and which cannot? A bullseye is a clean cone shaped separation with a circular ring, and it is the most repairable break there is. Resin flows into it readily and the visual result is usually excellent. A half moon is the same thing struck at an angle. Both are the ideal candidates and both are common on Santa Ana units running behind construction traffic on the SR-55. A star break throws radiating legs out from the impact point. It is repairable when the legs are short, generally under about two inches, but legs have a habit of running further during the repair itself if the glass is stressed or the shop rushes the temperature. A combination break is a bullseye with star legs coming off it, and it is repairable at modest size with a slower fill. Then there is the stuff that gets turned down. A crack longer than about six inches, any break that has reached the outer edge of the glass, damage that has gone through to the interlayer, contaminated breaks that have been full of road grime and car wash soap for months, and anything sitting in the driver primary viewing area. All of those are a replacement conversation instead. - Bullseye under roughly one inch across, strong candidate - Half moon and partial bullseye, normally repairable - Star with legs under about two inches, repairable with careful fill - Combination break at modest size, repairable with slower resin - Edge cracks within two inches of the perimeter, replace instead - Anything in the driver primary viewing area, replace instead - Contaminated or long neglected breaks, poor optical outcome expected ## Why does catching a chip early save real money? Glass under thermal load moves. A truck that sits in the Santa Ana sun all afternoon and then gets a blast of cold air on the defroster at five in the morning is putting the exact kind of stress across the panel that turns a quarter sized chip into a fourteen inch crack. Once that leg runs, the repair option is gone and the whole windshield is a replacement. The cost difference is not subtle. The chip repair band runs 90 to 220 dollars at half an hour to an hour and a half of labor. The replacement band starts at 450 dollars and climbs past 2,000 on Class 8 and camera equipped units. On a Santa Ana fleet of thirty vans, catching chips at the yard walk around instead of at the crack stage is thousands of dollars a year. Downtime follows the same curve. A chip repair is an in and out visit that fits into a driver lunch break. A replacement is a bay, a cure window, and often a camera calibration. Fleets that build a quick chip check into weekly wash bay routine keep almost all of their glass spend in the cheap column. ## Can you batch multiple units in one visit? Yes, and it is the way most Santa Ana operators run it. Chip repair is fast enough that a group of vans, box trucks, or service bodies can be cycled through in a single morning without wrecking anybody schedule. Multiple breaks on the same windshield are handled in the same visit and the second and subsequent chips on a unit carry less setup time than the first. Bringing units in as a group also gets you a straight answer on the ones that are past repair. We look at every windshield in the batch, sort them into repair now, replace soon, and monitor, and hand back a list. That list is usually more useful to a fleet manager than the repairs themselves, because it turns glass into a planned line item instead of a surprise. Insurance handling is straightforward here. Chip repair is one of the most routinely approved lines on a commercial auto policy, and carriers generally prefer it because the alternative costs them several times more. We bill direct where the file is set up that way and hand you documentation on each unit either way. - Multiple units cycled through in a single scheduled block - Second and later chips on the same glass at reduced setup - Each unit sorted into repair, replace, or monitor - Written per unit documentation for the maintenance file - Direct carrier billing where the policy is set up for it - Chips flagged near the driver viewing area called out specifically ## What does the finished repair actually look like? Expect a clear structural fix and a very good but not invisible cosmetic result. The legs of a star typically vanish. The ring of a bullseye typically vanishes. The small pit at the impact point remains as a faint mark you can find if you know where to look, and it is more visible in low sun than in overcast. Drivers stop noticing it within a week. The functional result is the point. A filled break has been re bonded across the separation, so the stress riser that was going to run a crack is gone. That is why a properly repaired chip almost never turns into a crack later, while an unrepaired one on a Santa Ana route very often does within a season. We set that expectation before the tool comes out rather than after. If a break is going to leave a noticeable scar because it has been open and dirty for months, you hear that first and can choose replacement instead. Nobody benefits from a repair that technically worked and still annoys the driver every morning on the drive east. ## Questions ### Will the chip completely disappear after the repair? Mostly, not entirely. Legs and rings usually vanish and the improvement runs about eighty to ninety five percent on a fresh clean break. A faint pit mark stays at the exact impact point because that glass was physically removed by the strike. The structural fix is complete regardless, which is the part that keeps the break from running into a full crack later. ### How long does a chip repair take? Thirty minutes to about ninety minutes per unit including setup, injection cycles, ultraviolet cure, and polish. Additional chips on the same windshield add roughly fifteen minutes each. It is quick enough that a Santa Ana driver can drop the unit, and the truck goes straight back on route afterward with no cure window to wait through. ### Is there a size limit where you will not repair it? Yes. Past roughly a one inch bullseye, star legs longer than about two inches, or any crack past six inches, a repair is not the right call. Damage touching the glass edge or sitting in the driver primary viewing area also gets turned down. We inspect first and tell you plainly, because a marginal repair that fails later helps nobody. ### Can you repair a chip on the passenger side rear glass? No, and no one can. Side and rear glass on commercial units is tempered rather than laminated. Tempered glass has no interlayer and no separated cavity to inject resin into. When it fails it disintegrates into cubes across the whole pane. Only laminated glass, which on most units means the windshield, is a candidate for resin repair. ### Does a repaired chip weaken the windshield? The opposite. Before repair the break is an unfilled void and a stress concentration point that the glass is actively trying to relieve by cracking. Filling and curing resin across that separation re bonds the plies locally and removes the stress riser. A correctly repaired break is far more stable than the same break left open through a Santa Ana summer. ### Should we just replace glass instead and skip repairs? Not on cost. Chip repair runs 90 to 220 dollars against a replacement band starting at 450 and running past 2,000 on camera equipped and Class 8 units. Replacement also brings a cure window, possible calibration, and a full day of downtime. Repair where the break qualifies, replace where it does not, and your glass budget stays predictable.