NBS Source
List your products
Interchar® 3120
Application

Commercial, industrial, public and transport buildings such as:

  • Airport terminals.
  • Leisure facilities.
  • Convention centres.
  • High-rise buildings.
  • Educational facilities.
  • Shopping centres.
  • Industrial complexes.
  • Hotels.

All steel surfaces to be coated should be clean, dry and free from contamination prior to application. Consult manufacturer for more details on surface preparation.

Description

Versatile, two-component, modified epoxy intumescent coating for cellulosic passive fire protection (PFP).

Low volatile organic compound (VOC) and boron-free coating designed to provide fire protection to structural steelwork.

This product is suitable for use on both open and closed structural sections.

Features and benefits:

  • Spray applied and requires no form of reinforcement.
  • Versatile, can be used direct to metal or over approved primers; on single or plural spray equipment; topcoated or not topcoated; on 'I' sections, hollow sections and cellular beams.
  • Utilizes durable epoxy technology to provide a material that allows steelwork to be fabricated and fire-protected, away from the construction site.
  • Improved aesthetics - enhances the appearance of topcoats through a smooth finish.
  • Certified to BS 476 and BS EN 13381.

Compatibility:

Interchar® 3120 has been tested as part of a coating system for use in fire situations with a range of approved priming systems (specified separately):

  • Intercure 200HS.
  • Intergard 251.
  • Intergard 2511.
  • Intergard 251HS.
  • Intergard 2509.
  • Intergard 2575.
  • Intergard 269.
  • Interseal 1052.
  • Interseal 670HS.
  • Interzinc 52.

The following topcoats are recommended for Interchar® 3120 (specified separately):

  • Interfine 1080.
  • Interfine 878.
  • Interfine 979.
  • Interthane 990.
  • Interthane 990SG.

Applications:

Commercial, industrial, public and transport buildings such as:

  • Airport terminals.
  • Leisure facilities.
  • Convention centres.
  • High-rise buildings.
  • Educational facilities.
  • Shopping centres.
  • Industrial complexes.
  • Hotels.

All steel surfaces to be coated should be clean, dry and free from contamination prior to application. Consult manufacturer for more details on surface preparation.

General information
Finish

Semi-gloss

Uniclass 2015
Pr_35_31_68_43 Intumescent protective coatingsPrimary
CAWS

M61/110 On site coating to primed steel

M61/115 On site coating to galvanized steel

M61/120 On site coating to existing steel

M61/140 On site overcoating to existing steel

M61/150 Off site coating to unprimed steel

M61/160 Off site coating to primed steel

M61/170 Off site coating to galvanized steel

Specification data - Intumescent protective coatings
Product Reference

Interchar® 3120

Standard product features

Colour:

Light grey. Part A: Black. Part B: White.

Finish:

Semi-gloss.

Technical characteristics:

  • Typical thickness: Dependent on the level of fire protection required.
  • Volume solids (to ISO 3233): 100%.
  • Coverage: 1 kg provides 1 mm of fire protection to 0.75 m².
  • Drying time: At 10°C: Touch dry, 16-hours. Hard dry, 33-hours. At 15°C: Touch dry, 16-hours. Hard dry, 22-hours. At 25°C: Touch dry, 7-hours. Hard dry, 16-hours. At 40°C: Touch dry, 3-hours. Hard dry, 4-hours.
  • Flash point (typical): Part A, ˃111°C. Part B: ˃111°C. Mixed: ˃ 111°C.
  • VOC (to EPA Method 24): 21 g/L.

Similar products from International®, brand of AkzoNobel