Loctite 37613-12PK Windshield Repair Syringe
$115.99 price checked August 2026
If you need to repair a bulls eye chip without mixing chemicals or using heat, this is the right choice.
The Loctite Windshield Repair in Short
The Loctite 37613-12PK Windshield Repair Syringe is for car owners who need a one-component system that requires no mixing or heat to repair bulls-eye chips in laminated glass.
Resin voiding occurs when air pockets are trapped during a repair, causing the fix to pop out or fail under stress. Many DIY attempts fail because the resin does not bond correctly to the glass substrate or the surrounding area is not properly prepared.
The Loctite 37613-12PK Windshield Repair Syringe provides a one-component solution that eliminates the risk of mixing errors. It features an index of refraction that matches original glass, ensuring the repair remains virtually undetectable once cured.
We evaluated the auto glass options we compared to select this product for our full review. This analysis is for car owners looking for a professional-grade repair without the need for a pressure pot or bridge injector.
If your damage is minor, view our roundup of the best windshield repair kit for rock chips.
How Car Forum World picked: we started from the 51 most-reviewed auto glass listings in our retail dataset, removed duplicates, accessories and off-category products, and 30 qualified. This product is one of 10 from that pool chosen for a full review. Our scores blend buyer satisfaction (60%), price position against comparable products (25%) and rating volume (15%). Specifications come from manufacturer listings and ratings from verified Amazon buyer reviews (data checked August 2026).
The Short Answer on the Loctite Windshield Repair
Best for: you need a one-component repair system that requires no mixing or heat and is designed specifically for a car owner to use.
- Pro: The resin has the same index of refraction as original glass to make repairs virtually undetectable.
- Pro: It is a one-component system that eliminates the need for mixing components.
- Pro: The 0.17-fl. oz. capacity provides a sufficient volume for bulls eye repairs.
- Con: The 3.9 rating indicates some users may find the application less consistent than professional-grade bridge injectors.
- Con: The 1.15 pounds tool weight may feel substantial for users with limited grip strength during precision work.
Don’t buy this if: you need to repair large cracks that require a pressurized resin delivery system rather than a manual syringe.
Car Forum World score: 8.4/10 (data-driven – see “How we picked” above)
New users should consult our guide on the best windshield repair kit for beginners.
Key Specifications
| Brand | Loctite |
| Model | 37613-12PK |
| System Type | One-component windshield repair system |
| Application | Bulls eyes and laminated glass windows |
| Mixing Required | No |
| Heat Required | No |
| Item Weight | 1.15 pounds |
| Package Dimensions | 8.4 x 7.9 x 5.8 inches |
The one-component design means you do not need to mix resins, which reduces the risk of resin voiding caused by improper mixing.
Where this sits in the buyer data: Among the 23 products screened for this category, this one’s 3.9 rating places it #17, on 123 ratings – above the 4-rating median of that group, so the average rests on more feedback than most of its comparables. On price it undercuts 28 of them.
What the Numbers Mean in Use
One-Component Application
The Loctite Windshield Repair system uses a one-component formula that requires no mixing and no heat. This allows you to initiate the repair without preparing a chemical mixture or setting up a heat source, which simplifies the workflow for a car owner. Because the resin is a single-component system, you avoid the risk of improper mixing that can lead to resin voiding or air pockets.
If you are repairing a crack that has already started to spread, you must determine if the damage exceeds the “bulls eye” application limit. This system is designed for specific impact points; if the crack is long or structural, you should consult a professional to ensure the damage does not require a full glass replacement.
Refractive Index Matching
The Loctite Windshield Repair features an index of refraction that matches original glass. This specific property ensures that the repair remains virtually undetectable once the resin cures. You can expect the repair site to stay clear rather than turning white or cloudy, as the material is engineered to blend into the glass substrate rather than create a visible scar.
When choosing a repair, prioritizing refractive index matching over simple resin volume ensures the visual integrity of your windshield. This product meets that requirement by matching the optical properties of the surrounding glass to maintain a seamless appearance.
Laminated Glass Versatility
The Loctite Windshield Repair is designed for use on both windshields and other laminated glass windows. This versatility allows you to use the same kit for various glass surfaces across the vehicle. Because the resin is designed for laminated glass, it provides a stable bond that resists the stress crack propagation common in multi-layered automotive glass.
Before ordering, you must confirm that your specific glass type is laminated and that the surface is free of oils or debris. Proper surface preparation is required to ensure the resin bonds correctly to the glass substrate. For any structural repairs or complex installations, you should hire a qualified installer to follow local regulations.
You might also consider evaluating the American Windshield Repair Kit for a different brand option.
Professionals often prefer the Lil Buddy device review for specialized glass installation tasks.
How the Loctite Windshield Repair Compares to Alternatives
- The Loctite Windshield Repair costs $3.01 less than the Equalizer ZipKnife Set ZKS37.
- The Loctite Windshield Repair costs $15.01 less than the Clearshield Professional Bridge Injector.
- The Loctite Windshield Repair costs $27.21 less than the Air Windshield Knife Pneumatic Remover.
- The Loctite Windshield Repair costs $49.01 less than the Auto Glass Suction Cup Set.
- The Clearshield Professional Bridge Injector holds a 4.3 rating compared to the 3.9 rating of the Loctite Windshield Repair.
While this system is designed for car owners to perform repairs without mixing or heat, it differs from professional kits that require torches or vacuum pumps. Because the data does not specify the curing pressure or thermal limits of this one-component system, you should confirm the manufacturer’s maximum repair depth for your specific glass type before purchase. If you require a high-volume injection system for repeated heavy-duty repairs, the Clearshield Professional Bridge Injector is the better pick for a professional workshop environment.
You can find more foundational information in our guide on how auto glass works.
What Buyers Still Want to Know About the Loctite Windshield Repair
Loctite Windshield Repair FAQ
Is it hard to get the resin into the crack without making a huge mess on my dashboard?
The Loctite Windshield Repair system is designed for use by car owners to apply resin to bulls eyes and laminated glass without requiring a mixing process. You should confirm your specific repair area is clear of debris before starting to ensure the resin flows into the crack rather than onto surrounding surfaces.
Is it worth spending $115 just to fix one small chip?
The Loctite Windshield Repair kit costs around $115.99 to provide a one-component system that produces a virtually undetectable repair and maintains the same index of refractions as original glass.
Do I need to buy any extra cleaning supplies or specialized tools to make this work?
The product facts do not list included cleaning agents or specialized tools beyond the syringe and resin. You must verify if your specific repair requires additional surface preparation chemicals before ordering this kit.
Does the Loctite Windshield Repair kit work on all types of glass?
Yes, this system is specifically designed for use on bulls eyes in windshields and other laminated glass windows. It is not intended for use on non-laminated glass or other automotive surfaces.
For specialized cutting needs, see our full review of the GT.44 Cut-Out Tool.
To understand your vehicle’s components, learn about the various types of auto glasses.
Is the Loctite Windshield Repair Right for You?
The Loctite Windshield Repair suits 5 kinds of buyer and is the wrong choice for 3 jobs, listed below with the reason for each.
Who the Loctite Windshield Repair is for, and what it does well
Who the Loctite Windshield Repair suits
- Daily commuters with small windshield chips — the repair is virtually undetectable and keeps the car safe
- DIY car owners — the one-component system requires no mixing or heat
- Private car collectors — the resin has the same index of refraction as original glass for a seamless look
- Fleet vehicle owners — the simple one-component design allows for quick maintenance without specialized tools
- RV owners with laminated side windows — the product is designed for other laminated glass windows
What the Loctite Windshield Repair handles well
- Fixing bull’s eye chips — specifically designed for this type of windshield damage
- Quick driveway repairs — the one-component system requires no mixing
- Maintaining glass clarity — the resin has the same index of refraction as original glass
- Repairing laminated side windows — applicable to other laminated glass windows
- Home-based auto maintenance — designed for use by car owners rather than professional shops
What the Loctite Windshield Repair is the wrong choice for
- Large windshield cracks — the 0.17-fl. oz. resin volume capacity is too small for major damage
- Professional glass repair shops — the tool weight and volume are intended for car owners, not high-volume commercial use
- Complex resin mixing — the one-component system cannot be used for multi-part chemical repairs
What to budget alongside the Loctite Windshield Repair, and what to skip
Worth buying at the same time
- Glass repair bridge — needed to hold the glass in place while the resin cures
- Isopropyl alcohol — needed to clean the surface before applying the resin
- Plastic scraper — needed to remove loose debris from the bull’s eye
- Microfiber towels — needed to dry the area before the repair process
- UV curing lamp — needed to harden the resin if the repair is done in a shaded area
What you can skip
- Two-part resin mixing kit — the one-component system eliminates the need for mixing
- Heat gun — the system requires no heat to cure
- Professional glass replacement kit — the repair is virtually undetectable, making replacement unnecessary for small chips
Where to Buy the Loctite Windshield Repair
These retailers sell Auto Glass generally – we do not track which of them has this particular model in stock, so check availability and the current price with the retailer before making a trip.
- O’Reilly Auto Parts (online and physical stores) — trade accounts
- Advance Auto Parts (online and physical stores) — local availability
- eBay (online only) — open-box and refurbished stock
- GlassTech (online only) — specialist retailer for professional tools
- Amazon (online only) — breadth of range
- AutoZone (online and physical stores) — in-store returns
Final Verdict on the Loctite Windshield Repair
If you need a windshield repair system that requires no mixing or heat and is designed for the car owner to use, the Loctite Windshield Repair is a practical choice at the $115.99 mark.
The Loctite Windshield Repair provides a one-component system with the same index of refractions as original glass, ensuring the repair is virtually undetectable on bulls eyes or other laminated glass windows.
This system holds a 3.9 rating from 123 buyers, supporting its position as a reliable option for those who need a professional-grade finish without a complex setup.
Skip it if: you need to repair a crack that is too large for a bulls eye application or if you require a high-volume industrial pressure pot for large-scale glass replacement.