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

Product ID: 36353609

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

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

⚙️88% metal content for superior conductivity

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Description

💡 Solder smarter, not harder — precision paste for pros who demand perfection

NO CLEAN FORMULA - Skip the cleanup—ideal for fast-paced, professional workflows
PREMIUM METAL CONTENT - Maximize electrical performance with 88% metal by weight
PRECISION PARTICLE SIZE - T3 (25-45 microns) ensures smooth, reliable solder joints every time
ERGONOMIC SYRINGE DESIGN - 5cc syringe with plunger & tip for effortless, accurate application
TRUSTED INDUSTRY STANDARD - Highly rated with 4.7 stars and a top 60 rank in solder products

Chip Quik SMD291AX is a 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 efficiency, it delivers reliable solder joints with minimal cleanup, making it a top choice for professional electronics assembly.

Specifications

ASIN	B0186IM0P0
Best Sellers Rank	#24,804 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #53 in Solder
Customer Reviews	4.7 4.7 out of 5 stars (739)
Date First Available	March 16, 2010
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

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¥4819

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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