J-B Weld SuperWeld™ Professional Grade Super Glue 20g

J-B Weld SuperWeld™ Professional Grade 20g is a high-strength cyanoacrylate super glue designed to create strong, permanent bonds in as little as 10 seconds. With an impressive 3,500 PSI strength, it provides fast and reliable bonding for professional, workshop, household, automotive, DIY and general repair applications.

Specially formulated to work on multiple and hard-to-bond surfaces, SuperWeld™ Professional Grade is suitable for hard plastic, metal, glass, wood, steel and rubber, making it a versatile adhesive for a wide range of repair jobs.

The combination of its controlled formula and precision tip applicator helps place adhesive exactly where it is needed. The no-run formulation provides improved control compared with conventional thin super glues and is particularly useful for small components, awkward repairs and jobs requiring accurate adhesive placement.

J-B Weld SuperWeld™ sets in approximately 10 seconds, allowing delicate or difficult-to-hold components to be bonded quickly. Once fully cured, the adhesive develops a strong 3,500 PSI permanent bond.

The adhesive reaches full cure in approximately 24 hours and dries clear, helping provide a neat and discreet finish on suitable surfaces.

Supplied in a larger 20g professional-grade format, SuperWeld™ is an excellent choice for tradespeople, workshops and frequent users who need a fast, strong and precisely controlled instant adhesive.

For anyone searching for professional super glue, 10-second instant adhesive, high-strength cyanoacrylate glue or super glue for metal, plastic, glass, rubber and wood, J-B Weld SuperWeld™ Professional Grade provides a versatile 3,500 PSI bonding solution.

Key Benefits

• Professional-grade cyanoacrylate super glue

• Powerful 3,500 PSI strength

• Creates a strong, permanent bond

• Sets in approximately 10 seconds

• Fully cures in approximately 24 hours

• Precision tip applicator

• Controlled application

• No-run formula

• Ideal for delicate and awkward repairs

• Suitable for multiple materials

• Works on many hard-to-bond surfaces

• Ideal for hard plastic

• Bonds metal

• Suitable for steel

• Bonds glass

• Suitable for wood

• Ideal for rubber

• Dries clear for discreet repairs

• Suitable for professional and trade applications

• Ideal for workshops

• Useful for household and DIY repairs

• Larger 20g professional-grade size

How to Use

• Ensure both bonding surfaces are clean, dry and free from grease, oil, dust and loose material.

• Check that both materials are compatible with cyanoacrylate adhesive.

• Remove the cap and use the precision tip to apply a small, controlled amount of SuperWeld™ to the bonding area.

• Avoid excessive application, as only a small amount of cyanoacrylate adhesive is normally required to create a strong bond.

• Bring the two surfaces together immediately after application.

• Position the components accurately and hold them firmly together while the initial bond develops.

• The adhesive sets in approximately 10 seconds.

• Allow approximately 24 hours for full cure before subjecting the repair to demanding use.

• Replace the cap securely after use and store according to the manufacturer's instructions.

• Avoid contact with skin and eyes, as cyanoacrylate adhesive bonds extremely quickly.

• Always follow the manufacturer's application and safety instructions supplied with the product.

Suitable Materials & Applications

• Hard plastic

• Metal

• Steel

• Glass

• Wood

• Rubber

• Small components

• Delicate repairs

• Awkward bonding applications

• Professional repairs

• Workshop applications

• Automotive accessories

• Household repairs

• DIY projects

• Precision bonding

• Multi-material repairs

Product Information

Brand: J-B Weld
Product: SuperWeld™ Professional Grade
Size: 20g
Type: Professional-grade cyanoacrylate super glue
Strength: 3,500 PSI
Set Time: Approximately 10 seconds
Cure Time: Approximately 24 hours
Colour When Dry: Clear
Applicator: Precision tip
No-Run Formula: Yes
Bond Type: Strong, permanent bond
Suitable Materials: Hard plastic, metal, steel, glass, wood, rubber & other compatible surfaces
Primary Use: Fast, high-strength precision bonding and repairs

WEEE Recycling Producer Registration Number:12889

How do I return my old product to be recycled?

You can return your old product to MyDIY. Waste Electrical and Electronic Equipment (WEEE) is taken back free of charge on a one-for-one, like-for-like basis. Waste batteries including rechargeable batteries are taken back free of charge. You are not obliged to make any purchase when returning old batteries. Each local authority must also accept household WEEE and small batteries free of charge at its recycling facilities. All WEEE and waste batteries must be recycled and should not be placed in any of your household wheelie bins. Make sure you always recycle all your old electrical goods and batteries.

What products can I recycle for free?

You can return anything that is electricaly powered or battery powered. Even your old bicycle lamps can be recycled!.

Do you take back used batteries?

Yes we do. The batteries that we accept are AA, AAA, C or D, powertool batterys and also the flat batteries that are found in watches and toys. Unfortunately we do not accept back any Industrial or car batteries.

Do I need to have made a purchase at MyDIY.ie?

No you don't. You can recycle any of the above items at our store in Inchicore Dublin 8, even if you have not made a purchase with us.

Will you collect my old product?

Yes, but we must be notafied within 14 days of purchase date. You can still arrange to have your old appliance recycled free of charge. Simply bring it back to our Inchicore store and we will ensure that it is disposed of in an environmentally friendly manner.

How much will it cost?

There is no charge to return products to any of our warehouses.

Why should I recycle with MyDIY?

We will ensure that your old product is disposed of correctly to reduce the potentially harmful effects caused on the environment and to conserve natural resources. Further information can be found on weeeireland.ie.

EMC (Environmental Management Cost) Included in the purchase price. 

Gas discharge lamps, LFLs and CFLs €0.15

LED lamps and luminaires €0.05

Large appliances €5.00

Information

Fast & Reliable Shipping with DPD

We ship all orders via DPD, one of Ireland’s most trusted couriers. With DPD’s one-hour delivery window, you won’t have to wait around all day for your MyDIY.ie order!

Delivery Times

Each product on our website is marked with an estimated delivery time. If you order multiple items, your order will arrive based on the item with the longest delivery time. For example, if you buy two next-day items and one 3-day item, the entire order will arrive in 3 days.

While most products arrive in 1-2 days, we offer over 44,000 items, so please allow 4-5 working days for some deliveries. Need it faster? Call us at 01-446692, and we'll do our best to help.

Delivery Charges

• FREE delivery for orders over €150 within Ireland.

• Orders under €150: €8.99 delivery fee.

• International delivery: Charges based on weight—contact us for a quote.

When Will I Receive My Order?

• Most orders ship on a 24-hour courier service (2 working days).

• Larger orders may take 4-5 days, and pallet deliveries require scheduling.

• Orders placed before 2 PM usually ship within 24 hours.

• Orders after 1:30 PM Friday or on weekends ship the following week.

• Busy holiday periods may cause slight delays beyond our control.

Do I Need to Be Home for Delivery?

Yes, someone must sign for deliveries due to item value. If you're not home, DPD will leave a card with re-delivery or collection instructions. After two failed attempts, your order may be returned to us, and a re-delivery fee may apply.

Damaged or Incomplete Orders

We carefully pack all orders, but if something arrives damaged or incomplete, contact us within 24 hours. Report shortages within 3 days of delivery.

International Shipping

We ship to Europe and worldwide, with charges based on weight. Liquid products cannot be shipped internationally due to regulations. Contact us for a quote—we're happy to help!

Customer Service & Returns