![]() This time must be validated by each customer.Ĭan solder paste be warmed up quicker than the recommended 4 hours? Syringes can come to temperature in less than four hours. ![]() Solder paste should be used at “room temperature.” This will assure intended viscosity and prevent potential condensation. Should solder paste be used direct from refrigeration? Solder paste should be uniform in color and consistency. Nordson EFD does not ‘extend the shelf life’ of a product in writing beyond the expiration date indicated on the product label.Īre there telltale signs of improper storage and/or handling?Īside from poor performance, the other major sign of mishandled solder paste is separation of the flux and alloy particles. Customers wishing to use “expired” paste should re-qualify the material by running test boards or parts through the entire production process to confirm good soldering results. Many of our solder pastes and paste fluxes will last beyond the warranty period. Nordson EFD guarantees that properly stored paste will perform for at least the shelf life on the product label, or material will be replaced at no charge. Will solder paste or paste flux last beyond the stated shelf life? If you do “freeze” some paste, test its performance before use on live product. As a consequence, we recommend not freezing any of our solder pastes or paste fluxes. However, some pastes are susceptible to damage that impairs performance. What happens to solder paste or paste flux if it is frozen? If there was a problem with shipping and the paste was exposed to temperatures over 27☌ for an extended time period, paste should be tested before use. Our shelf life values were developed to include expected heat exposure during normal shipping conditions which may exceed refrigeration temperatures. What if the paste gets warmer than recommended storage temperature during shipping? In this case, the replacement guarantee is void. The end user needs to determine actual shelf life if stored outside recommendations. Warmer conditions will reduce shelf life and/or cause flux separation with solder paste. Storage at temperatures above refrigeration will reduce shelf life and voids the guarantee.Īt a minimum, nine months for SolderPlus dispense paste, twelve months for PrintPlus print paste and twelve months for FluxPlus paste flux when stored as recommended. Recommended storage temperature for solder paste is between 40☏ and 50☏ (4☌ to 10☌). If stored on their side, the piston can move, introducing air to the paste. Syringes and cartridges should be stored vertically with tips facing down. Do paste containers require a certain orientation during storage?
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