How Long Does Windshield Repair Take? Chips, Cracks, Cure

How long chip and crack repairs take

A chip repair takes about 20 to 30 minutes at a shop, and a crack repair usually takes longer. The two numbers come from different sources, and the table shows each one with its source. Most of the time goes to cleaning, filling and checking the break. The cure itself is short.

Job	Typical time	Source
Chip repair at a shop	20 to 30 minutes while you wait	State Farm claims page
Windshield repair (chips and small cracks)	30 minutes or less in many cases	Safelite Help Center
Crack repair	About 45 minutes to 1 hour	Argonauts Windshield Repair, Houston (shop FAQ)
Long crack, by Ultra Bond’s network	Under 30 minutes (vendor claim)	Ultra Bond, resin maker
DIY chip kit (Permatex, J-B Weld)	About 45 minutes of waiting, plus prep	Permatex and J-B Weld directions (total is our arithmetic)

Why a crack takes longer than a chip

A crack takes longer because the resin has to travel along the whole line. ROLAGS 002-2022, the US repair standard, says the technician must completely fill the crack, place a bead of resin on top, cure it and finish it flush. Rain-X tells kit users to dispense resin along a crack at about 3 seconds per centimeter. After 5 to 10 minutes, the user checks for air pockets and adds pressure from inside if any remain.

Length also sets a limit. ROLAGS allows crack repair up to 14 inches (350 mm), while State Farm lists cracks under 6 inches as repairable. Delta Kits, which makes professional repair systems, says long cracks take “considerably more practice” than chips. For the full size rules, see how big a windshield crack can be repaired. The difference between a windshield crack and a chip also changes which method the technician uses.

Resin cure time: UV light vs sunlight

Windshield repair resin cures in about 30 seconds to 10 minutes under a UV lamp or strong sun, according to the people who make it. Ultra Bond says curing takes about 30 seconds to 3 minutes in most repairs, and 30 seconds to 2 minutes for small chips, depending on the light source.

Delta Kits says its Ignite LED light can cure a chip repair in seconds. The company still recommends a full five minutes so the UV light reaches the fill resin before the customer drives off. Rain-X tells kit users to cure for about 5 to 10 minutes in direct sun or under a UV light. Permatex asks for 15 minutes of direct sunlight, or at least 1 hour on hazy days.

What the resin needs to cure

Repair resin needs ultraviolet light and no oxygen to harden. Delta Kits and Ultra Bond both name 365 nm UV light. The clear curing tab or strip over the pit keeps air away from the resin. Rain-X says a UV light with an output of 315 to 405 nm works when sunlight is not available. Delta Kits warns that many sandwich wraps block UV light, and that weak batteries are the most common reason a curing lamp fails.

Why the resin is shaded until the end

Sunlight can cure the resin too early. Delta Kits says resin that cures before the break is full blocks the path of the rest of the resin. Its answer is a UV sun shield or bubble dome over the repair until it is ready to cure. Ultra Bond gives the same advice, and adds that the sun cures resin better than most UV lights because its intensity is even. Rain-X tells kit users to keep the windshield shaded until the whole repair is complete.

What happens during a repair, step by step

A windshield repair follows nine steps under ROLAGS 002-2022, and only a few of them take more than a minute or two. The standard says technicians follow the resin system maker’s instructions unless those instructions conflict with the standard. That is why times differ from shop to shop. The steps below follow the standard’s order for a chip.

For a crack, ROLAGS adds a bead of resin along the top of the crack before curing. Safelite says its technicians cure the resin with UV light and then polish it to a smooth finish. Whether the result is acceptable is a separate question, covered in how to know if a windshield repair worked.

What makes a repair take longer

Water in the break, glass that is too hot or cold, and longer damage add the most time. ROLAGS lists drying and temperature control as their own steps, so a technician has to deal with them before any resin goes in.

Moisture in the break

A wet chip has to be dried before it is filled. Delta Kits says its moisture evaporator, a heated tip placed on the impact point, dries a wet break in about 17 to 20 seconds. Argonauts Windshield Repair, a Houston shop, takes a slower approach: it asks owners to leave a wet car in direct sun for 3 hours from May to September. The shop says drying can take several days to a week the rest of the year. The same shop says water left in a break can turn the area milky white.

Temperature and weather

Cold glass and weak sunlight slow a repair down. Rain-X gives no minimum temperature for its kit, but says 40 degrees Fahrenheit is a good guideline. Tesla’s service procedure for chip repair asks for the glass edge to be between 60 and 85 F (15 to 30 C), with the car out of direct sun. On a hazy day, the Permatex cure step grows from 15 minutes to at least 1 hour.

Size and number of breaks

More damage means more filling. A crack has to be filled along its whole length, and each extra chip is its own repair. ROLAGS also limits repairs in the 12-inch band in front of the driver, so a technician may decide on replacement instead.

When you can drive and wash after a repair

You can usually drive right after a professional windshield repair, according to Safelite. Washing is a different matter, because water, soap and pressure reach the resin before it has fully settled. The sources give different waiting times, and the table lists each one.

After a resin repair	Wait	Who says so
Driving after a shop repair	Right away	Safelite Help Center
Driving after a DIY kit repair	About 1 hour	Rain-X FAQ
Water on the repair	At least 1 hour	Safelite, citing most technicians
Automated car wash	Longer than 1 hour (no figure given)	Safelite
High-pressure washing	2 days	XPeng Australia, automaker
Any car wash	1 to 2 days	Moreno Valley Mobile Auto Glass, California shop

The Moreno Valley shop says resin takes 24 to 48 hours to fully cure. That figure does not match the resin makers, who give cure times in seconds to minutes. XPeng also advises turning the demister off after five to ten minutes, because sudden temperature changes can stress the repair while it settles. Delta Kits warns that some car-wash soaps and waxes can make resin rise out of the break, sometimes hours or days later. For scraping and wiping the glass, see how to clean a windshield after a resin repair.

Mobile repair vs shop appointment

A mobile repair takes about as long as a shop repair, but weather can delay it. State Farm says customers can schedule mobile technicians at home, at the office or at any location. Safelite says many of its locations offer mobile, same-day repairs.

The steps that depend on conditions are the same ones that add time anywhere. A technician working outdoors has to keep the resin shaded until the cure. Rain also means a wet break that must be dried first. A shop bay avoids both problems. For windshield replacement, Safelite says a technician cannot complete the job in active rain, and very cold weather slows the adhesive cure significantly. More on that choice is in mobile car glass replacement service benefits.

Safelite says appointments are often available as soon as the same day or the next day. State Farm says repairs may typically be completed within 48 hours of filing a claim. Booking time is separate from the 20 to 30 minutes the repair itself takes.

How long a DIY repair kit takes

A syringe-and-pedestal kit takes about 45 minutes of waiting on a sunny day, before prep and scraping. Permatex and J-B Weld publish the same cycle in their directions. The plunger sits locked in a vacuum position for 10 minutes. It then sits in a pressure position for at least 20 minutes, and the pit resin cures in direct sun for 15 minutes. Our arithmetic gives 45 minutes in total, or about 90 minutes on a hazy day when Permatex asks for at least an hour of sun.

Rain-X uses a different device with shorter steps. Its directions tell users to let the resin absorb for 4 to 6 minutes, release trapped air, repeat until no dark areas remain, then cure for about 5 to 10 minutes. If the resin is still wet under the curing strips, the strips stay on until it is dry. Rain-X says it is safe to drive within about an hour after finishing. Whether a kit does the job as well as a shop is covered in do windshield repair kits really work.

Why windshield replacement takes longer

Replacement takes longer because the new glass is bonded with urethane adhesive that has to cure before the car is safe to drive. A repair has no such wait, since the original glass and its bond stay in place. ROLAGS lists retaining the original bond as one of the purposes of a repair. Replacement time has three parts, and the table separates them.

Part of the job	Time	Source
Hands-on replacement	Often 60 minutes or less	Safelite
Before driving (Safelite’s advice)	At least 1 hour after service	Safelite
Minimum drive-away time, fast-cure urethane	30 to 60 minutes	I-CAR
Minimum drive-away time, conventional urethane	2 to 8 hours or longer	I-CAR
Full strength	May take 24 hours	I-CAR
ADAS camera calibration	An hour or more	Safelite

I-CAR, the collision repair training body, says the drive-away time is when the adhesive is strong enough to meet FMVSS 212 (windshield retention) and FMVSS 208 (occupant protection). Lower temperature or humidity makes it longer. Some automakers set their own rule: I-CAR reports that FCA/Stellantis states 24 hours, and Ford/Lincoln wants full cure before release. Sika lists products with drive-away times of 30, 60 and 120 minutes. A car with a windshield camera may also need calibration, which AAA’s 2023 estimates put at 3.3 labor hours on three models. The full breakdown is in how long car glass replacement takes, and the camera step in ADAS calibration and windshield replacement explained.

Frequently asked questions

How long does it take to fix a chipped windshield?

A shop chip repair usually takes 20 to 30 minutes, according to State Farm, and Safelite says many repairs take 30 minutes or less. A DIY syringe kit takes longer, with about 45 minutes of waiting on a sunny day.

How long does windshield repair resin take to cure?

Ultra Bond says its resin cures in about 30 seconds to 3 minutes under UV light or sun, and Delta Kits recommends a full 5 minutes. Kit makers give longer times: Rain-X about 5 to 10 minutes and Permatex 15 minutes in direct sun or at least 1 hour on hazy days.

Can I drive right after a windshield chip repair?

Yes, Safelite says you can usually drive immediately after a repair. Rain-X says it is safe to drive within about an hour after finishing a repair with its kit.

How long after a windshield repair can I wash my car?

Safelite says most technicians recommend at least an hour before water reaches the repair and longer before an automated car wash. XPeng Australia advises avoiding high-pressure washing for two days.

Does a windshield crack repair take longer than a chip repair?

Yes, because the resin has to fill the whole length of the crack before it is cured. One Houston shop quotes about 45 minutes to 1 hour for a crack, and the size limits are explained in how big a windshield crack can be repaired.

Sources

• ANSI/AGSC/NWRD ROLAGS 002-2022, Repair of Laminated Automotive Glass Standard (checked November 6, 2026)
• Safelite Help Center: what to expect
• Safelite: windshield repair
• Safelite: Can you go through a car wash with a cracked windshield? (July 23, 2026)
• Safelite: Can a technician replace my windshield in a parking lot or at home? (May 8, 2026)
• Safelite: windshield camera recalibration
• State Farm: windshield and glass claims
• Ultra Bond: windshield repair resins
• Delta Kits: How long does it take for an LED UV curing light to cure a stone chip repair? (2021)
• Delta Kits: Why won’t the windshield repair resin cure?
• Delta Kits: Filling rock chips and cracks in the sunshine (2021)
• Delta Kits: How long does the rock chip have to dry out prior to repairing? (2021)
• Delta Kits: How long of a crack in a windshield can be repaired? (2021)
• Delta Kits: Do wax and soap affect the quality of a chip repair? (2021)
• Rain-X Windshield Repair Kit directions (ITW, 2012)
• Rain-X FAQs
• Permatex Bullseye Windshield Repair Kit directions
• J-B Weld: cracked windshield project
• Tesla Model 3 Service Manual: windshield and roof glass chip repair
• XPeng Australia: windscreen repair, how it works and what to expect
• Argonauts Windshield Repair (Houston): crack repair FAQs
• Moreno Valley Mobile Auto Glass: car wash after windshield repair
• I-CAR Repairability Technical Support: minimum drive-away time (validated 2024)
• Sika USA: safe drive-away time
• AAA: Cost of ADAS Repairs, 2023 update