Solder Paste Welding Flux. Feature :   Excellent Capacity of Solder-stickiness  Excellent Anti-wet Capacity  Widely Used on BGA, PGA, CSP Packages and Flip Chip Operation   Suitable for Multiple PCB Reflow  No-clean and Lead Free for Environmental Protection. It Can Be Used for Rework, Sphere or Pin Attachment to BGA, PGA and CSP Packages, and Assemble Operations Such As Flip Chip Attachment to PWB Substrates. It is a Necessary and Helpful Tool in BGA Reballing.  Specification: Name: NC-559-ASM Solder Paste Welding Flux by AMTECH  Flux Type: NC-559-ASM ( Include Needles and Piston) Notice: We Will Put 1PC Needle and 1PC Piston for Each Package, Not for Each Flux. Volume: 10cc Package Include: 1 X Welding Flux Or 2 X Welding Fluxes Or 5 X Welding Fluxes Or 10 X Welding Fluxes . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.