Interchar 1120 Thin film water-borne intumescent coating optimized for 90 and 120 minutes fire resistance
1120 A single component, borate and chlorine free, water borne intumescent coating designed for on-site application to interior exposed structural steel requiring protection from cellulosic fire. Interchar 1120 is a low VOC acrylic intumescent material independently fire tested for up to 3 hour fire ratings in accordance with ASTM E119/UL263, BS 476 20-22, EN 13381-8 and GB 14907. Interchar 1120 is a CE marked product with European Technical Approval ETA-11/0045.
INTENDED USES To provide cellulosic fire protection on beams, columns and hollow sections in interior environments.
All surfaces to be coated should be clean, dry and free from contamination. Prior to paint application, all steel surfaces should be assessed and treated in accordance with ISO 8504:2000. Oil or grease should be removed in accordance with SSPC-SP1 Solvent Cleaning.
Primed Steelwork Interchar 1120 should always be applied over a recommended anti-corrosive coating scheme. The primer surface should be dry and free from all contamination and Interchar 1120 must be applied within the overcoating intervals specified (consult the Interchar 1120 Application Guidelines). Areas of breakdown, damage etc., should be prepared to the specified standard (e.g. Sa21⁄2 (ISO 8501-1:2007) or SSPC-SP6, Abrasive Blasting, or SSPC-SP11, Power Tool Cleaning) and a full coat of primer applied prior to overcoating with Interchar 1120.
Metallic Zinc Primed Surfaces Interchar 1120 can be applied over approved epoxy metallic zinc primers, provided that these have been overcoated with an approved tie coat. Ensure that the primed surface is clean, dry and free from contamination prior to application of the Interchar 1120. Recommended tie coats are Intergard 269 or Intergard 276.
Typical uses Provides intumescent fire protection to structural steelwork while maintaining architectural aesthetics for commercial infrastructure assets including: • Airports • Stadia and leisure facilities • Office buildings • Retail complexes
One supplier, one solution Project construction aspects and client aesthetic requirements may require the use of both a primer and colored topcoats. You can have confidence in AkzoNobel and its International® range due to our commitment to testing complete systems and offering a single point of supply and support.
Testing to the highest standard The Certifire system involves type testing and audit testing for fire and non-fire performance together with factory production control. It is important to know that the products supplied and installed will provide the same level of performance as those tested. Interchar® 1120 has been tested to the ASFP protocol to account for beams with web openings. This permits optimized dry film thicknesses to be specified for beams with circular, rectangular and castellated openings.
Approvals BS 476 Parts 20-21: Fire Resistance of Elements of Construction AS 1530.4: Fire Resistance Test of Elements of Construction UL 263: Fire Tests of Building Construction and Materials GB 14907: Guobiao - Chinese National Standard
Fire protection with aesthetic appeal Interchar® 1120 has been designed to allow fireproofing without compromising aesthetic appeal: • Competitive dry film thicknesses • Applied as a thin layer, it does not compromise intricate designs and shapes created from the structural steel • Easy over-coating with a wide range of colored finishes
Check out all Structural Steel protection systems available from Australian Fire Control.