How long does it take for this green oil to cure completely?

It typically takes just a few minutes for the green oil to cure completely when exposed to a direct UV light source. The exact time depends on the wattage of your UV lamp and the thickness of the applied layer; thinner layers cure much faster and more thoroughly.

Can I use this solder mask without a UV light?

No, you cannot use this solder mask effectively without a UV light. This specific formula is photo-reactive and requires ultraviolet light to trigger the hardening process; leaving it in normal room lighting will result in it remaining a sticky liquid for an extended period.

Is this green oil safe to use on smartphone motherboards?

Yes, this UV curing green oil is perfectly safe and highly recommended for smartphone motherboard repairs. It is non-conductive and provides excellent insulation, making it the industry standard for securing microscopic flying wires after repairing broken traces.

What should I use to apply the green oil to the circuit board?

You should use a fine-tipped paintbrush, a wooden toothpick, or a syringe needle to apply the green oil. For microscopic repairs, using a needle allows you to place a tiny, precise drop exactly over the soldered joint without covering adjacent components.

Can I purchase this 100g bottle of UV green oil at your Hong Kong store?

Yes, you can purchase the JASTON 100g UV Curing Solder Mask in bulk or single units at Sun Cheong Computer Co. Ltd. (新昌電腦有限公司) in Sham Shui Po. Our physical store supplies many local electronics repair centers and DIY hobbyists with professional-grade soldering consumables.

100g UV Curing Solder Mask Green Oil

Name: 100g UV Curing Solder Mask Green Oil | PCB Repair Ink
Brand: JATSON
SKU: 21PS002128
Price: 49.0 HKD
Availability: InStock

Short Product Description

The JASTON 100g UV Curing Solder Mask Green Oil (JSD-802UV) is an essential liquid insulator designed for repairing scratched PCB traces and securing delicate micro-jumper wires. Curing in just minutes under standard UV light, this high-volume 100g bottle provides professional-grade dielectric protection for smartphone motherboards, custom mechanical keyboards, and drone flight controllers. Available for instant pickup at Sun Cheong Computer Co. Ltd. (新昌電腦有限公司) in Sham Shui Po, our staff can offer expert advice on micro-soldering and UV curing techniques for your DIY electronics projects.

Key Features

Rapid UV Curing: Hardens into a solid, protective shell in just a few minutes when exposed to standard ultraviolet light.
High-Volume 100g Bottle: Provides a massive supply of solder mask ink, making it highly cost-effective for busy repair shops and frequent DIYers.
Excellent Dielectric Insulation: Effectively insulates exposed copper traces and solder joints, preventing dangerous short circuits on densely packed PCBs.
Secures Flying Wires: Acts as a strong adhesive to lock down fragile micro-jumper wires on smartphone and laptop motherboards.
Restores Factory Protection: Perfectly replaces peeling or scratched original solder masks, preventing long-term oxidation and corrosion of the copper layers.
Easy Brush Application: The smooth liquid consistency allows for even, precise application using a standard fine-tipped paintbrush.

Full Product Description

Professional-Grade PCB Insulation and Repair

This UV Curing Solder Mask provides a tough, protective dielectric layer over exposed copper traces and delicate micro-soldering joints. By applying a thin coat over your repaired circuits, you prevent accidental short circuits and oxidation that can ruin expensive electronics over time. It is the perfect liquid insulator for restoring the factory green mask on scratched computer motherboards or protecting custom-routed wires on DIY prototype boards.

Rapid UV Light Curing Process

The JSD-802UV formula is specifically designed to cure rapidly and harden completely when exposed to ultraviolet (UV) light. You simply apply the green oil evenly with a brush over your flying wires, shine a UV flashlight on it for a few minutes, and the liquid transforms into a permanent, rock-solid protective shell. This eliminates the long waiting times associated with traditional air-dry epoxies, allowing you to finish your micro-soldering repairs efficiently and move on to the next step.

Pro Tip from Our Technicians

Our Sham Shui Po technical team strongly advises cleaning the PCB surface thoroughly with isopropyl alcohol before applying this UV Solder Mask to ensure maximum adhesion. When securing delicate flying wires (jumper wires) on a smartphone motherboard, apply only a tiny drop using a fine needle or brush; applying too thick of a layer will prevent the UV light from penetrating, leaving the bottommost resin uncured and sticky. Always wear UV-protective glasses when using your curing lamp to protect your eyes during the hardening process.

Technical Specifications

Brand: JASTON
Model: JSD-802UV
Product Type: UV Curing Solder Mask (Green Oil)
Net Weight: 100g
Curing Method: Ultraviolet (UV) Light Exposure
Curing Time: A few minutes (depending on UV light intensity and layer thickness)
Primary Application: PCB trace repair, flying wire insulation, solder joint protection
Bottle Dimensions: 73mm (H) x 40mm (W) x 40mm (D)

Delivery Options

Local delivery within Hong Kong and in-store pickup.
Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
In-store pickup details (location and time) will be confirmed by email or phone message.
Delivery times are estimates and may be affected by weather or unforeseen circumstances.

FAQ Section

How long does it take for this green oil to cure completely?It typically takes just a few minutes for the green oil to cure completely when exposed to a direct UV light source. The exact time depends on the wattage of your UV lamp and the thickness of the applied layer; thinner layers cure much faster and more thoroughly.
Can I use this solder mask without a UV light?No, you cannot use this solder mask effectively without a UV light. This specific formula is photo-reactive and requires ultraviolet light to trigger the hardening process; leaving it in normal room lighting will result in it remaining a sticky liquid for an extended period.
Is this green oil safe to use on smartphone motherboards?Yes, this UV curing green oil is perfectly safe and highly recommended for smartphone motherboard repairs. It is non-conductive and provides excellent insulation, making it the industry standard for securing microscopic flying wires after repairing broken traces.
What should I use to apply the green oil to the circuit board?You should use a fine-tipped paintbrush, a wooden toothpick, or a syringe needle to apply the green oil. For microscopic repairs, using a needle allows you to place a tiny, precise drop exactly over the soldered joint without covering adjacent components.
Can I purchase this 100g bottle of UV green oil at your Hong Kong store?Yes, you can purchase the JASTON 100g UV Curing Solder Mask in bulk or single units at Sun Cheong Computer Co. Ltd. (新昌電腦有限公司) in Sham Shui Po. Our physical store supplies many local electronics repair centers and DIY hobbyists with professional-grade soldering consumables.

Target Users / Applications

Smartphone Repair Technicians: Securing microscopic flying wires (jumper wires) after repairing broken traces on densely packed iPhone or Android motherboards.
Custom Mechanical Keyboard Builders: Insulating exposed copper traces and protecting custom hand-wired matrix connections on custom PCB builds.
FPV Drone Mechanics: Protecting exposed solder pads on flight controllers and ESCs from moisture, dirt, and accidental short circuits caused by carbon fiber frames.