Pirastro RSPB Obligato Rosin for Violin and Viola

Pirastro Obligato Rosin for Violin and Viola

Pirastro Obligato Rosin coats bow hair to help it engage violin and viola strings. Designed for synthetic strings at low to medium tension, this honey-colored formula suits players seeking a softer tonal character. Pirastro describes its tonal effect as rounded and mellow.

Choose this bow rosin for synthetic strings when matching your accessory to the string material and tension matters. It serves violinists and violists using compatible setups during practice, lessons, and rehearsals. Players seeking rosin for Obligato violin strings can follow Pirastro's own pairing recommendation, which identifies its Obligato/Violino formula.

Pirastro develops its rosin varieties around the requirements of specific string families. Its official guidance also recommends this formula for Obligato viola strings, confirming its application beyond violin. A cloth-mounted cake and plastic grip make handling easier while limiting direct finger contact. Apply a light, even coating along the bow hair as part of regular instrument preparation.

Key Features

• Synthetic-string compatibility: Matches setups using low or medium string tension.
• Violin and viola use: Serves players of either instrument.
• Tonal character: Supports a mellow sound with a rounded quality.
• Recommended pairing: Pirastro specifies this formula for its Obligato strings.
• Protected handling: Cloth backing and a plastic grip help keep fingers away from the rosin.

Technical Specifications

• Brand: Pirastro
• Formula: Obligato / Violino
• Product Type: Bow rosin
• Instruments: Violin and viola
• Recommended String Material: Synthetic
• Recommended String Tension: Low and medium
• Color: Honey
• Mounting: Soft cloth with hard plastic grip