What is the ratio of lead? And what is the suggested melt temperature?

The old days back in 1960's was 60/40 tin/lead rosin core called for electronics. You new solder is liquid is 63/37 tin/lead. I had to look this up my self. I hope this helps you.

Where do i purchase smaller tips for this?

So an Amazon search on "Dispensing Needle 1 - Blunt Tip Luer Lock" https://smile.amazon.com/s?k=Dispensing+Needle+1+-+Blunt+Tip+Luer+Lock&crid=Z897DQLHIWFP&sprefix=dispensing+needle+1+-+blunt+tip+luer+lock%2Caps%2C113&ref=nb_sb_noss_2

Is this used like typical coiled electronics solder, but with more control of where it goes? Just touch with iron to heat?

Yes and no. This is really made for soldering surface mount soldering with either a heat gun or a soldering iron. I wouldn’t recommend it for through hole soldering. However its great for surface mount.

What is the inner diameter of the dispensing tip?

I don't know the tips exact size, but it is very small and only dispenses a very small amount of material when used.

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SMD291AX Solder Paste no clean 63Sn/37Pb in 5cc syringe 15g

SMD291AX Solder Paste no clean 63Sn/37Pb in 5cc syringe 15g

Product ID: 36353609

💉5cc syringe with plunger & tip for mess-free dispensing

📏T3 particle size (25-45 microns) for precision application

⚙️88% metal content for superior conductivity

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886294₫

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Description

💡 Solder smarter, not harder — precision paste for flawless connections!

NO CLEAN FORMULA - Eliminates post-solder cleaning, saving you time and hassle on every project.
LONG TERM FRESHNESS - Refrigeration extends shelf life, maintaining peak performance for years.
OPTIMAL PARTICLE SIZE - T3 (25-45 microns) granularity delivers smooth stencil printing and flawless reflow.
USER FRIENDLY SYRINGE - 5cc syringe with plunger and tip offers controlled, mess-free application for professional results.
PRECISION METAL CONTENT - High 88% metal weight ensures reliable, strong solder joints every time.

Chip Quik SMD291AX is a premium no-clean solder paste with 63Sn/37Pb alloy, featuring 88% metal content and T3 particle size (25-45 microns) in a convenient 5cc syringe. Designed for precision and ease, it ensures reliable reflow and strong joints while eliminating cleanup. Ideal for professionals seeking consistent, mess-free soldering with extended shelf life when refrigerated.

Specifications

ASIN	B0186IM0P0
Batteries Included?	No
Batteries Required?	No
Best Sellers Rank	#26,530 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #59 in Solder
Customer Reviews	4.7 4.7 out of 5 stars (733)
Date First Available	March 16, 2010
Is Discontinued By Manufacturer	No
Item Package Quantity	1
Item Weight	0.01 ounces
Item model number	SMD291AX
Manufacturer	Chip Quik®
Material	Metal
Package Dimensions	4 x 2.3 x 0.8 inches
Part Number	SMD291AX

Reviews

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30.10.2025

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17.01.2025

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4.12.2024

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2.02.2023

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18.10.2025

M**S

14.10.2023

D**N

9.02.2023

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1.04.2023

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12.05.2022

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11.11.2024

M**L

23.05.2023

M**.

28.10.2025

S**N

3.07.2023

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