Technical description of the 4CR 5122.0030 glass primer:
The 4CR 5122.0030 glass primer is a 30ml black glass primer, designed by the 4CR brand to prepare the glazing surface prior to the installation of a windscreen adhesive in an automotive workshop. This highly effective product also acts as a UV protector, limiting degradation of the bonding adhesive by exposure to ultra-violet rays. It is applied after cleaning the glazing with a cleaner and activator to ensure optimum adhesion.
To guarantee a long-lasting, resistant repair, the use of glass primer is an ideal solution for properly preparing glass surfaces before fitting a vehicle windscreen. Designed to provide a perfectly stable and resistant film, this primer protects the bonding area against moisture, water and external aggression. Thanks to its high-performance component, it guarantees optimum adhesion between the glass and the Putty then used to form the structural joint of the glazing.
Available in professional format, Primers 5122.0030 is applied as an essential step in the Preparation process: once the surface has been degreased, the product is applied in a thin layer to form a uniform film that extends the life of the bond and ensures a flawless finish. It is an essential product in modern car manufacturing.
Each manufacturer recommends that you follow specific instructions to get the best performance: shake the bottle well, apply the primer only to the bond area and respect the drying time. This advice guarantees controlled application and a uniform result, perfectly suited to the requirements of car bodywork.
What are the technical characteristics of Primers for glass 5122.0030?
- Colour: black
- Capacity: 30 ml bottle
- Density: approx. 0.954 g/cm³ (at 20°C)
- Thermal application: recommended application temperature between 10°C and 35°C
- Minimum drying time approx. 5 minutes at 23°C (50% relative humidity)
- Maximum drying (fully cured): up to 24 hours at 23°C and 50% humidity
- Hardening mechanism: hardening by moisture on the surface of the glass
- Flash point: -10°C, indicating the volatile/flammable nature of the product
- Material: liquid, fluid appearance for easy application
What are the advantages of using it in a car body shop?
Using glass primer 5122.0030 offers several key benefits for professional body repairers:
1. Improved adhesion :
The primer strengthens the bond between the glass and the PU adhesive, ensuring better adhesion and increasing the reliability of the bond.
2. UV protection:
Thanks to its UV protection formula, the primer helps protect the windscreen adhesive from degradation caused by ultraviolet rays, ensuring optimum bond durability.
3. Easy application:
Application can be made with an applicator brush or a Spray Nozzle, allowing precise application to the ceramic strip area of the glazing.
4. Safe and durable :
The primer dries quickly (from 5 minutes depending on conditions), speeding up the assembly process and reducing workshop waiting times.
5. Product compatibility :
Designed to be used with a 4CR cleaner before application, it integrates perfectly into the glazing Preparation process.
6. Long-term reliability:
The combination of a good primer and a high-performance PU adhesive reduces the risk of windscreen delamination, even in the face of thermal or mechanical stress.
7. FOR PROFESSIONAL USE ONLY:
Its formulation and packaging are designed for strictly PROFESSIONAL USE ONLY, with precise dosage and little wastage.
How do I prepare the windscreen before using the primer?
1. Initial cleaning of the glazing:
- Remove dust, dirt and residue with a clean cloth.
- Use a silicone-free glass cleaner
- Wipe with a clean microfibre cloth
2. Degrease the glass:
- Use an auto Degreaser and apply the product to a cloth
- Rub the glued area
- Always use two cloths: one to apply and one to dry.
3. Checking the ceramic strip :
On modern windscreens, the ceramic strip (black area) is the ideal adhesion zone. Check that:
- It is not scratched
- There are no residues
- It is perfectly clean
How to use 4CR 5122 glass primer in car bodywork?
The 4CR 5122 glass primer is specialised in preparing the glass before applying a Windscreen glue, such as PU 5120. Its role is to increase adhesion, protect the adhesive against UV rays and ensure a long-lasting, reliable repair.
1. Surface preparation :
To ensure optimum bonding :
- Thoroughly clean the bonding area with a suitable cleaner.
- Degrease and decontaminate the surface to remove silicone, dust and Wax residues.
- Dry the glazing to avoid any residual moisture
A perfectly clean surface is essential for the primer to adhere properly and for the PU adhesive to work perfectly.
2. Product preparation :
- Shake the bottle well for 30 to 60 seconds to homogenise the formula
- Check the applicator brush supplied and remove any excess product
- Work at a recommended temperature of between 10°C and 35°C for optimum drying.
3. Applying the primer :
Apply a thin, even coat to the ceramic strip or glazing bonding area using the applicator brush. Avoid applying too much product, a thin, even bead will suffice. Allow the primer to dry to the touch, generally 5 minutes at 23°C and 50% humidity.
4. Waiting time:
- Dry: minimum 5 minutes at 23°C
- Full cure: up to 24 hours if necessary for extreme conditions
Fast drying optimises time in the workshop and allows the PU adhesive to be applied quickly.
5. Expected results :
- Optimum adhesion of the PU adhesive to the glazing
- Protection of the adhesive against UV and degradation
- Durable, reliable and safe windscreen installation
- Increased productivity thanks to fast drying and precise dosage
