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3769E is a blue-transparent, solvent-free UV-curable peelable hole plugging adhesive designed for temporary protection of metal screw holes. It offers fast curing, high thixotropy for precise shape retention, and excellent chemical resistance, protecting internal threads from chemical attack and contamination during surface treatment. After processing, the plug peels out easily with no residue, leaving the threads clean and fully functional.
Key Features
Fast curing, solvent-free - quick UV cure at 1000 mJ/cm² with a 100% solvent-free formulation
High thixotropy, excellent shape retention - the adhesive stays precisely in place after dispensing, ideal for filling and plugging holes
Easy to peel, no residue - the cured plug is removed cleanly without leaving residue inside the threads
Excellent chemical resistance - protects screw holes from chemicals during surface treatment and finishing processes
Metal screw hole protection - specially developed for temporary protection of metal screw and threaded holes
Clear visual inspection - blue-transparent color makes plug coverage easy to verify
Technical Specifications
Model
3769E
Color
Blue Transparent
Viscosity at 25°C
85000 mPa.s
Curing Condition
1000 mJ/cm²
Hardness
72 Shore A
Elongation at Break
80%
Storage Condition
12 months at 8-28°C
Packaging
30g / 50g
Product Applications
3769E is specially developed for temporary protection of metal screw holes and threaded holes. Typical applications include:
Metal screw hole plugging - fills and plugs screw holes and threaded holes to keep threads clean and protected during processing
Surface treatment protection - shields internal threads from chemicals during processes such as anodizing, electroplating, painting, coating and chemical cleaning
Chemical resistance - the cured plug withstands process chemicals without degrading, protecting the hole area from attack
Precise dispensing - high thixotropy keeps the plug in place with good shape retention until UV curing
Clean removal - after processing, the plug peels out easily with no residue, keeping the threads clean and reusable
Solvent-free operation - safe for workshop environments and sensitive assemblies
Frequently Asked Questions
What is 3769E mainly used for? It is a peelable hole plugging adhesive for temporary protection of metal screw holes and threaded holes during surface treatment and finishing. After processing, the plug is peeled out easily without residue.
Why is high thixotropy important for this product? High thixotropy provides excellent shape retention, so the adhesive stays precisely in place after dispensing to fully fill and plug the hole without flowing out before curing.
How does 3769E protect against chemicals? The cured plug offers excellent chemical resistance, protecting internal threads from attack by chemicals used in surface treatment processes, then peels off cleanly afterwards.
Does 3769E leave residue after peeling? No. The cured plug is removed easily and cleanly, leaving no residue inside the screw hole so the threads remain clean and functional.
Is 3769E solvent-free? Yes. 3769E adopts a 100% solvent-free formulation, curing fast under UV energy of about 1000 mJ/cm² while meeting environmental and workplace safety requirements.
How should 3769E be stored and what is its shelf life? Keep the container sealed and store at 8-28°C in a cool, dry place away from direct sunlight and UV sources. Under proper storage conditions, the shelf life is 12 months. Available in 30g and 50g packages.
Packaging & Storage
Available in 30g and 50g packages. Store in a sealed container at 8-28°C, away from direct sunlight and UV exposure. Shelf life: 12 months.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2012
Total Annual:
1500000-2000000
Employee Number:
15~20
Ecer Certification：
Verified Supplier
Shenzhen Super-curing Opto-Electronic co., LTD is one of manufacturer specialized in research ,development ,production ,sales ,and service for UVLED curing equipment. The founder are consist of several specialists in UV cuing industry.
Since 2012 work on UVLED curing machine ,we have much profession... Shenzhen Super-curing Opto-Electronic co., LTD is one of manufacturer specialized in research ,development ,production ,sales ,and service for UVLED curing equipment. The founder are consist of several specialists in UV cuing industry.
Since 2012 work on UVLED curing machine ,we have much profession...
