Treela 4 Set 8341 No Clean Solder Flux Paste 10cc Tacky Soldering Flux 40ml Pneumatic Dispenser with Plunger and Dispensing Tip for Electronics Soldering PCB IC Cellphone CPU LED Bga Repairing

Good quality, wirks well.

As others have said, the flux is very good. It's got a fairly high rosin content and it's very active at lower Temps, so it works very well with lead or lead free solder.The two sizes of tips for each syringe is very welcome. For hot air rework this flux is very effective.The big complaint is the plunger for the syringe. It's the correct size for the syringe, but it doesn't have the normal rubber plunger on it. It's instead just the plastic part that loosely sits in the syringe and pushes against a pre inserted plastic plunger. It doesn't work well at all and you will end up fighting with the syringe to get the flux out, and then it will be in uneven amounts.The syringe was made to be used with either an electric dispenser or a manual dispenser. The plastic plunger was included for unknown reasons because it just doesn't work with the syringe the way its setup.I have both types of dispenser and it works well with both. You can find the manual dispensers here on Amazon for between $10 - $20, and they well worth it. They give far greater control on how much and precision placement of the flux.Electric glue dispensers with foot pedal control can be found here but are needlessly expensive. Look elsewhere for them in the $60 range at 120v. These syringes will work fine with them.

This stuff is not bad at all, works well and helps the solder do its thing, kind of auto pilot little effort needed from me.

Good Quality for the price! works great and cleans off easy with a little heat and 91 percent alcohol!

The flux and the packaging of the flux is great. The extra tips are nice. However, the plunger just kind of sits there. It easily falls out unless you keep the back end of the flux higher than the tip, it has no way to keep the plunger in the tube. All it would take is a rubber gasket to place in the grooved part of the plunger or a rubber end that fit more tightly into the tube.

Package arrived on time. I used it first chance I could. The solder paste worked as described, easy to use, thickness was durable, and manageable with a easy clean up. This will be great for working with and teaching my grandkids.