We researched and compared the most popular windshield repair kits on the market, evaluating manufacturer specifications, published industry standards (like those from the National Windshield Repair Association), and aggregated owner feedback. Our goal was to identify kits that effectively fill chips and cracks while restoring structural integrity and optical clarity, without overpromising on results for severe damage.
In our evaluation, we prioritized resin quality, applicator design, UV cure reliability, and overall value. Below are our findings, including honest limitations and who might want to skip each pick.
| Photo | Product | Score | Buy |
|---|---|---|---|
 |
Rain-X Windshield Repair Kit Best Overall Resin volume: 0.25 fl oz; includes bridge applicator, curing film, and razor blade |
9.0 | 🛒 Check Price |
|
🚗
|
Permatex Windshield Repair Kit Runner Up Resin volume: 0.2 fl oz; includes syringe injector, curing tabs, and stabilizer |
8.7 | 🛒 Check Price |
|
🚗
|
Blue-Star Windshield Repair Kit Best Value Resin volume: 0.35 fl oz; includes bridge, injector, curing film, and drill bit |
8.4 | 🛒 Check Price |
 |
Delta Kits Windshield Repair Kit Professional Grade Resin volume: 0.5 fl oz; includes professional bridge, injector, and curing light |
8.1 | 🛒 Check Price |
|
Gorilla Windshield Repair Kit Compact Design Resin volume: 0.15 fl oz; includes syringe injector and curing strips |
7.8 | 🛒 Check Price |
|
🚗
|
Kemimoto Windshield Repair Kit Budget Pick Resin volume: 0.3 fl oz; includes bridge, injector, and curing film |
7.3 | 🛒 Check Price |
|
🚗
|
ABN Windshield Repair Kit Inconsistent Results Resin volume: 0.2 fl oz; includes syringe injector, curing tabs, and razor |
7.0 | 🛒 Check Price |
1. Rain-X Windshield Repair Kit: Best Overall
The Rain-X Windshield Repair Kit consistently earns high marks from owners for its reliable resin and straightforward process. In our evaluation, the bridge applicator held the injector securely against the glass, allowing for good resin penetration into the break. The included curing film and razor blade help finish the repair smoothly. Based on owner feedback, most chips and small cracks become nearly invisible after proper curing under sunlight or UV.
However, the resin supply is small, suitable for only one or two repairs, which may be a limitation for those with multiple damaged windshields. Also, very long cracks (over 12 inches) or damage at the edge of the glass are not recommended for this kit. If you have extensive or edge-located damage, consider a professional repair instead.
- Proprietary resin formulation cures clear and bonds strongly to glass
- Bridge applicator provides stable, even pressure for complete fill
- Works on star breaks, bullseyes, and cracks up to 12 inches
Pros: Excellent clarity after curing; Easy-to-follow instructions
Cons: Resin quantity is limited to one or two repairs
2. Permatex Windshield Repair Kit: Runner Up
Permatex is a well-known brand in automotive repair, and their Windshield Repair Kit delivers solid performance for the price. We compared its syringe injector design to bridge-style kits; while it requires a steadier hand, it allows precise resin placement. Owner feedback indicates that the resin bonds well and the repair holds up over time, though clarity may not be perfect for very large bullseyes.
One drawback is that the syringe plunger can sometimes leak resin if not fully seated, which wastes product. Additionally, the kit is best suited for cracks under 6 inches; longer cracks often spread despite repair. If you have a large crack or need to repair multiple spots, you may want a kit with more resin and a bridge applicator.
- Syringe-style injector allows controlled resin application
- Works on bullseyes, star breaks, and cracks up to 6 inches
- Curing tabs help block UV during cure
Pros: Good value for occasional repairs; Resin cures hard and clear
Cons: Syringe can be tricky to keep sealed during use
3. Blue-Star Windshield Repair Kit: Best Value
The Blue-Star Windshield Repair Kit stands out for its generous resin supply and inclusion of a drill bit, which can be used to create a small entry point for resin in stubborn breaks. In our evaluation, the bridge applicator worked well on flat surfaces but had some difficulty maintaining suction on highly curved windshields. Owner feedback is generally positive, especially for the price, with many noting successful repairs on small chips and star breaks.
However, the kit’s instructions are not as clear as those from Rain-X or Permatex, which may confuse first-time users. Also, the drill bit requires careful use to avoid damaging the glass further. If you are a beginner or have a very curved windshield, you might find a more easy to use kit like Rain-X worth the extra cost.
- Generous resin amount for multiple repairs
- Includes drill bit for relieving pressure in tough breaks
- Bridge applicator with suction cup for stability
Pros: Great value for the resin quantity; Drill bit helps with hard-to-fill chips
Cons: Suction cup on bridge may lose grip on curved windshields
4. Delta Kits Windshield Repair Kit: Professional Grade
Delta Kits is a trusted name among professional windshield repair technicians, and their consumer kit reflects that pedigree. In our research, the resin chemistry is superior, producing repairs that are very strong and optically clear. The bridge is durable and allows fine adjustment of injector pressure, which can fill even long cracks effectively. The included UV curing light is a nice bonus for consistent results regardless of weather.
However, this kit is overkill for most DIY users who only need to repair a single chip. The cost is significantly higher than other kits, and the learning curve is steeper due to the professional features. If you are not planning to do multiple repairs or become a hobbyist, a simpler kit will serve you just as well for less investment.
- High-viscosity resin for deep crack penetration
- Professional-grade bridge with adjustable pressure
- Includes UV curing light for consistent results
Pros: Resin quality is excellent; UV light ensures cure even on cloudy days
Cons: Higher price point with less value for occasional use
5. Gorilla Windshield Repair Kit: Compact Design
The Gorilla Windshield Repair Kit is designed for basic emergency repairs. Its small size makes it convenient to keep in the car for immediate attention to new chips. In our evaluation, the syringe injector worked adequately for very small breaks, but the resin volume is minimal and the curing strips are less effective than dedicated curing film. Owner feedback indicates that repairs hold for a few months but may degrade faster than premium kits.
This kit is best for temporary fixes or for those who want a low-cost backup. It is not suitable for larger cracks or for owners expecting long-term durability. If you need a permanent repair, invest in a more complete kit like Rain-X or Permatex.
- Small, portable kit fits in glove box
- Syringe injector with twist-lock tip
- Quick repair for small chips and cracks under 4 inches
Pros: Very compact and affordable; Simple one-syringe design
Cons: Limited resin quantity and repair size
6. Kemimoto Windshield Repair Kit: Budget Pick
Kemimoto offers a budget-friendly option that includes a bridge applicator, which is rare at this price. In our comparison, the resin performed adequately for small chips, but some owners reported that the cured resin had a slight haze or yellowed over time. The bridge suction cup worked on flat glass but struggled on curved surfaces, and the plastic components felt less durable than those of Rain-X or Delta Kits.
This kit is best for those on a tight budget who need a one-time repair for a minor chip. However, if you value long-term clarity and durability, spending a bit more on a higher-rated kit is advisable. The Kemimoto kit may not be reliable for larger or more complex damage.
- Lowest price point among bridge-style kits
- Includes bridge and injector for stable application
- Resin claims to work on bullseyes and star breaks
Pros: Very affordable; Bridge applicator included
Cons: Resin may not cure fully clear; Bridge build quality is inconsistent
7. ABN Windshield Repair Kit: Inconsistent Results
ABN’s Windshield Repair Kit is one of the cheapest options available, but our research and owner feedback reveal inconsistent performance. Some users report successful repairs with good clarity, while others complain that the resin remains sticky or does not bond well, leading to crack spreading. The syringe injector is functional but prone to air bubbles. In our evaluation, we found that the resin’s curing time varied significantly, which may affect results.
This kit is a gamble and is best avoided if you need a reliable repair. It might work for a very small, fresh chip in a pinch, but we recommend spending a few dollars more for a kit with more consistent reviews. If you have any doubt, choose Rain-X or Permatex for predictable outcomes.
- Syringe injector with needle tip for precision
- Curing tabs included for UV blocking
- Works on small chips and cracks up to 3 inches
Pros: Very low price; Needle tip helps with tiny cracks
Cons: Inconsistent resin quality between batches
Frequently Asked Questions
How long does a windshield repair last?
A properly performed repair with a quality kit can last for years, often the lifetime of the windshield. However, extreme temperature changes or physical stress may cause the repair to fail. Based on owner feedback and industry standards, expect 2-5 years of reliable service from a well-done repair.
Can I repair a crack that is longer than 6 inches?
Most DIY kits are designed for cracks up to 6 inches. Longer cracks are difficult to fill completely and may continue to spread. For cracks over 6 inches, professional repair or windshield replacement is recommended. Some professional-grade kits like Delta Kits can handle longer cracks, but success is not guaranteed.
Do I need sunlight to cure the resin?
Most kits use UV-curable resin that requires sunlight or a UV lamp. Some kits include a UV curing light. If you are repairing on a cloudy day or in a garage, you can use a UV flashlight or the included curing light. Without proper UV exposure, the resin will not harden correctly.
Will the repair be invisible?
No repair is completely invisible. A good DIY repair can make the chip or crack nearly unnoticeable, especially if the glass is clean and the resin cures clear. However, there may be a slight distortion or a small pit left on the surface. Professional repairs achieve better optical clarity, but DIY kits can still be very satisfactory.
Can I repair a chip that has dirt in it?
It is not recommended. Dirt and moisture trapped in the chip will prevent the resin from bonding properly and may cause the repair to fail or look cloudy. Clean the area with isopropyl alcohol and dry it thoroughly before attempting repair. If the chip is heavily contaminated, professional cleaning may be needed.
Our Verdict
After researching and comparing the top windshield repair kits, our top pick is the Rain-X Windshield Repair Kit for its excellent clarity, ease of use, and reliable results. The runner up is the Permatex Windshield Repair Kit, which offers good performance at a slightly lower price. For those on a budget, the Blue-Star Kit provides great value but has some user-friendliness issues. We recommend avoiding the ABN kit unless you are willing to accept inconsistent results.
More Exterior Protection Guides
Video Guide
Video: Related tutorial from YouTube