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MECHANIC XGZ40 Solder Paste Flux (Sn63/Pb37)
$3.85$10.84Save 64%
In stock at aliexpress.com
This is MECHANIC XGZ40 solder paste flux with a 183 degree C melting point in Sn63/Pb37 alloy, sold for mobile phone IC, CPU, BGA and SMD repair. It costs about $3.85, and the seller reports over 3,000 orders with 97.4% positive feedback on AliExpress. Sn63/Pb37 is a leaded alloy, which is a detail many buyers miss.
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Price from AliExpress at our last check (refreshed weekly). The final price, shipping and any import charges show at AliExpress checkout. We may earn a commission if you buy.
Highlights
- Sn63/Pb37 leaded solder paste
- 183 degree C melting point
- For BGA, SMD, IC and CPU repair
- MECHANIC XGZ40 label
Best for
Phone repair techs doing BGA reflow and SMD work who prefer leaded solder.
Things to consider
- Sn63/Pb37 contains lead, so use ventilation, wash your hands after handling and keep it away from kids and food; lead-free regulations may apply to products you sell.
- Paste is often kept in a refrigerator to extend life, and its working time shortens as it dries, so check how much the syringe holds.
- Delivery takes roughly one to three weeks, and Buyer Protection applies if the syringe leaks.
Key specs
| Price | $3.85 |
|---|---|
| Alloy | Sn63/Pb37 (leaded) |
| Melting point | 183 degrees C |
| Brand named | MECHANIC XGZ40 |
| AliExpress seller data | 3,000+ orders, 97.4% positive feedback |
Our take
A well-rated repair paste, but it is leaded, so handle with care.
MECHANIC XGZ40 Solder Paste Flux (Sn63/Pb37) at a glance
| Brand | AliExpress |
|---|---|
| Price | $3.85 (was $10.84) |
| Type | Welding Equipment & Supplies |
| Availability | In stock at aliexpress.com |
| Returns | Eligible items can be returned within 90 days of payment, with the first return on each… |
Price check
At $3.85, the MECHANIC XGZ40 Solder Paste Flux is mid-range for AliExpress, whose 52,612 listed products run $1 to $1,229.
It's currently 64% below its listed price of $10.84. Sale prices can end without notice, so check the live price before you order.
Similar items from other brands we track run $7.99 to $39.99.
Frequently asked questions
Does this paste contain lead?
Yes. Sn63/Pb37 means 63% tin and 37% lead, so use ventilation and wash your hands after handling.
What is it used for?
Reflowing BGA chips and SMD parts with a hot air station or a hot plate.
How do I store it?
Keep it in a cool place, ideally refrigerated, and let it warm up before use.
Is it safe for beginners?
Leaded paste is easy to reflow but needs care. Ventilate, wear gloves if you like, and keep it away from children and food.
Is the MECHANIC XGZ40 Solder Paste Flux on sale?
Yes. AliExpress lists it at $3.85, down from $10.84 (64% off). Sale prices change, so confirm the live price on aliexpress.com.
Is there a discount on the MECHANIC XGZ40 Solder Paste Flux?
AliExpress publishes these ways to save: Coins in the app. AliExpress sets the terms, which can change; our AliExpress coupons page has the details.
What is AliExpress's return policy?
Eligible items can be returned within 90 days of payment, with the first return on each order free, according to AliExpress's 2024 US announcement. Return terms vary by seller and item, so check the product page. Custom, perishable and hygiene items are generally excluded.
How long does AliExpress take to ship?
AliExpress's 2024 US guarantee listed Choice orders at 5 to 12 days and standard orders at 8 to 14 days, but real-world standard shipping from China often runs longer. Items marked Ship from United States come from local stock. Free shipping on Choice orders depends on a minimum order shown at checkout.
Does the MECHANIC XGZ40 Solder Paste Flux come with a warranty?
AliExpress's published warranty terms: AliExpress does not publish a marketplace-wide product warranty. Coverage depends on the individual seller, and Buyer Protection covers non-delivery, damage and not-as-described claims instead.
Where can I buy the MECHANIC XGZ40 Solder Paste Flux?
The MECHANIC XGZ40 Solder Paste Flux is sold directly by AliExpress on aliexpress.com. The Shop now button on this page goes straight to the product there.
Is the MECHANIC XGZ40 Solder Paste Flux in stock?
Yes. AliExpress lists it as in stock on aliexpress.com as of our latest check. Stock and prices refresh throughout the day.
Is AliExpress a legit store?
AliExpress is a legitimate marketplace that is worth using for cheap, low-risk things like cables, tools, cleaning supplies and small home items, as long as you can wait and you buy from well-rated sellers. Skip it for anything safety-critical, brand-name or urgent. Check the seller's feedback score, the delivery estimate and the import-charge line at checkout before you pay. Our full AliExpress review covers shipping, returns and what to check before ordering.
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