RMA258-15R Rosin Based Solder Paste

RMA258-15R Rosin Based Solder Paste Description:

RMA258-15R is a rosin based solder paste that has been developed to offer long pause-to-print capabilities while enhancing fine print definitions.

RMA258-15R reduces such defects as voiding and eliminates head-in-pillow. The superior wetting ability of RMA258-15R results in bright, smooth and shiny solder joints. RMA258-15R is capable of exceptional reflow during long, hot profiles.  RMA258-15R leaves medium, amber colored post process residues.

Features

• Long Pause-to-Print Capabilities
• Enhances Fine Print Definitions
• No Head-in-Pillow
• Excellent Wetting, Even with Leadless Devices
• Exceptional Reflow During Long, Hot Profiles
• Reduced Voiding

Printing:

• Apply sufficient paste to the stencil to allow a smooth, even roll during the print cycle (a bead diameter of 12 to 16 mm (½ to ⅝ inch) is normally sufficient to begin).
• Apply small amounts of fresh solder paste to the stencil at controlled intervals to maintain paste chemistry and workable properties.
• RMA258-15R provides the necessary tack time and force for today’s high speed placement equipment, which will enhance product performance and reliability.
• Cleaning of your stencil will vary by application; however, it can be accomplished using AIM DJAW-10 stencil cleaner.

Cleaning:

• RMA258-15R is a rosin based formula that may be cleaned if necessary with saponified water or an appropriate solvent cleaner.
• Please refer to the AIM cleaner matrix for a list of compatible cleaning materials.

Handling and Storage:

• RMA258-15R is best used within 1 year at 4° C-12° C (40° F-55° F) or 6 months at room temperature.
• Allow the solder paste to warm up completely and naturally to ambient temperature (8 hrs.) prior to breaking the seal for use.
• Mix the product lightly and thoroughly (1-2 mins. max) to ensure even distribution of any separated material.
• Do not store new and used paste in the same container, and reseal any opened containers while not in use.
• Replace the internal plug and cap of the 500 gram jars to ensure the best possible seal.

Physical Properties: