Interchar® 3120 Epoxy Intumescent System (Non-Decorative Steelwork)
Verified by manufacturer over a year ago
Steel Substrate (C3–C5)
Steel Substrate (C3–C5)
Cellulosic Passive Fire Protection (PFP) system for external non-decorative steelwork.
Application
Suitable for non-decorative external exposed steelwork in low corrosive (C1–C2) to highly corrosive environments (C3–C5).
Coats by environmental classification:
Up to C2
- 1st coat: Interchar 3120.
C3 to C5
- 1st coat: Interguard 251HS. DFT: 75 microns.
- 2nd coat: Interchar 3120. DFT: To be determined by steel section and fire duration. Must be confirmed with manufacturer prior to application.
Description
Interchar® 3120 is a modified epoxy intumescent coating system with a high quality, cosmetically appealing finish suitable for cellulosic fire protection up to 120 minutes.
General information
Color | Grey |
Finish | Manufacturer guidanceSemi-gloss. |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Warranty description | Manufacturer guidanceRefer to International Protective Coatings for further details relating to performance warranty. |
Uniclass | |
SpeedSpec | 09910 Painting |
SpecPack | 09910 Painting |
NATSPEC National Classification System | 0671 Painting |
Specification data - Special coating systems
Preparation | All surfaces to be prepared in accordance with the coating manufacturer's written instructions. |
Primer coats | Intergard 251HS. DFT: 75 microns.Manufacturer guidanceApply as full coat. |
Finishing coats | Interchar 3120.Manufacturer guidanceDry film thickness (DFT) of Interchar 3120 is determined by steel section and fire duration. Final DFT must be confirmed by manufacturer prior to application. |
Execution | Applied in accordance with the coating manufacturer's written instructions. |
Surface material | Steel surfaces should be assessed and treated in accordance with ISO 8504:2000, followed by abrasive blast cleaning to achieve Sa2½ in accordance with ISO 8501-1:2007. Refer to International Protective Coatings for full surface preparation requirements prior to commencement of work. |
Application temperature | >5°C. |
Durability | Medium (7–15 years). High (15-25 years). Manufacturer guidanceRefers to system durability per ISO 12944.1:2017. |
Fire resistance | Up to 120 minutes (2 hours). |
Colour | Light grey. |
Finish | Semi-gloss. |
Volatile organic compound (VOC) | 21 g/L. Manufacturer guidanceRefers to values for Interchar 3120 only, EPA Method 24. |
Sustainability data
Contains Red List materials | Yes |
Country of material origin | Australia |
Country of product manufacture | Australia |
Literature
Interchar® 3120 Application Guidelines
Interchar® 3120 Epoxy Fire Protection for Infrastructure
Fire Protection for Structural Steel
Proof of Performance (Bridges)
Proof of Performance (Infrastructure)
Proof of Performance (Stadia)
Interchar® 3120
Interchar® 3120 Brochure