Question 1

What is the difference between the different SRA numbers? For example this one says SRA# 312 and another is SRA #99-20 and there are even more.

Accepted Answer

Flux normally comes in three different strengths, light (no-clean), normal (RMA), and strong (Water Soluble). #312 appears to be the weakest one and probably best for light work on sensitive materials. #90-20 appears to be the medium strength and probably the best for general all around use. #80 "This is a high activity halide, Neutral organic acid (OA) flux formulated for difficult-to-solder surfaces where activated rosin fluxes and less active OA fluxes cannot be used." (and probably not needed except for extreme situations).References: http://sra-solder.com/sra-312-no-clean-flux-pen-refillable/http://sra-solder.com/sra-99-20-rma-rosin-flux-pen-refillable/http://sra-solder.com/sra-80-water-soluble-flux-pen-refillable/

Question 2

What do you use to refill with, how, what brand, etc...?  I want to try but want to know before I order and need more of something that I do not have.

Accepted Answer

This is the same pen with a bottle holding 5 refills included http://www.amazon.com/SRA-312-No-Clean-Flux-Refill/dp/B008Q1F92E

Question 3

Can this flux be used to solder 2 pieces of magnet wire together? If not, what flux do I have to use? Thank you a lot!

Accepted Answer

I'm honestly not to sure what you mean by two magnet wire? I'm imagining you mean joining  two solid (magnetic) rods together? In this case I would imagine a 50/50 lead/tin solder however, I'm not sure what the magnetic rods consist of. You may want to consider a mig/tac.

Question 4

I make jewelry and I need to solder some pieces together. Will this work for it?

Accepted Answer

This is flux so you would need solder.  This is mainly used for electronics

ASIN	B008OC0E5M
ASIN	B008OC0E5M
Batteries Included?	No
Batteries Required?	No
Best Sellers Rank	#70,841 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #188 in Solder, Solder Fluxes & Pastes
Customer Reviews	4.6 4.6 out of 5 stars (1,015)
Customer reviews	4.6 4.6 out of 5 stars (1,015)
Date First Available	17 October 2013
Date First Available	17 October 2013
Is Discontinued By Manufacturer	No
Item Package Quantity	1
Item Weight	18 g
Item model number	PEN-NC
Item model number	PEN-NC
Manufacturer	SRA
Manufacturer	SRA
Part number	PEN-NC
Product Dimensions	13.72 x 2.54 x 0.76 cm; 18 g
Product Dimensions	13.72 x 2.54 x 0.76 cm; 18 g
Size	No-Clean Pen

#312 Flux Pen Low-Solids, No-Clean 10ml - Refillable

Description

Specifications

Common Questions