Specifications Alloy: Sn63/Pb37 Flux Type: Synthetic No-Clean Flux Classification: REL0 Metal Content: 88% metal by weight. Particle Size: T3 (25-45 microns) Melting Point: 183C (361F) Size: 10cc/35g syringe Shelf Life Refrigerated >12 months, unrefrigerated >6 months Stencil Life >8 hours @ 20-50% RH 22-28C (72-82F) >4 hours @ 50-70% RH 22-28C (72-82F) Stencil CleaningAutomated stencil cleaning systems for both stencil and misprinted boards. Manual cleaning using isopropyl alcohol (IPA).Storage and HandlingRefrigerate at 3-8C (37-46F). Do not freeze. Allow 4 hours for solder paste to reach an operating temperature of 20-25C (68-77F) before use. Documents Datasheet MSDS Sheet WARNING! This product can expose you to Lead, which is known to the State of California to cause Cancer, Birth Defects, or other Reproductive Harm. For more information, go to: www.P65Warnings.ca.gov