This product is for professional use only. Contractors using this product and any other products in the Nullifire SC900 range must be third party accredited. Due to the specialist nature of these products, prior to first use, manufacturer training must be successfully completed to ensure compliance. Please contact our Technical Team for details on 0113 2455450 (option 2) or send a message to [email protected] before purchasing.

SC901 is a low VOC, one coat, high build two-pack system based on patented technology, providing a fast cure effective structural fire performance, for steelwork, up to a 120 minute fire rating.

SC901 provides an ultra fast curing fire protection coating for structural steel. SC901 is designed to provide upto 120 minutes fire resistance to ‘I’ section beams and columns, hollow columns, cellular beams, concrete filled hollow columns and solid steel rods.

As a fast-track coating, all 120 minute loadings are possible to apply in a single coat and weather resistant in one hour. SC901 can be used on steel, cast iron and galvanised steel. Nullifire SC901 is designed for shop application using twin component spray equipment.

Safety data sheet must be read and understood before use. Flammable - keep away from open flames and other ignition sources.

Purchasing

Please note that SC901 must be purchased in one of the following configurations:

• 15 x 25 kg Part A with 1 x 45 kg Part B
• 3 x 250 kg Part A with 2 x 45 kg Part B

If you require any further help with ordering, please contact our sales team on 0113 2455450 or [email protected].

Quick Links - Click To Jump To Section:

• Features & Benefits
• Protective Equipment
• Surface Preparation & Priming
• Application Conditions
• Application Equipment
• Mixing
• Application
• Site Work
• Cleaning
• Maintenance & Repair
• Technical Data
• Topseal Requirements
• Optifire+: Reliable and Traceable Fire Protection

Features & Benefits

• Fast cure, touch dry in 1 hour and the ability to handle and transport within 1 day
• Early weather resistance, shower proof within 1 hour
• Self-priming system tolerant of light rusting to steel, up to 2 weeks post blasting
• High build potential with all ratings possible in one application
• Fire rating up to 120 minutes tested to BS476 and EN13381: Part 8
• Designed for off-site use
• Can be applied to a smooth matt finish. A compatible top seal can be applied if a decorative finish is required
• Optifire+® unique traceability identifier
• Certifire CF5144
• CE ETA 20/1216

Protective Equipment

• Use in well ventilated conditions and ensure all recommended protective equipment is worn during handling & use of this product
• For full recommendation, refer to the safety data sheet, available to download from the 'Data Sheets' tab above

Surface Preparation & Priming

• No primer required for C1 or C2 environments
• Steelwork should be blast cleaned in dry atmospheric conditions using abrasive of suitable type and size, free from fines, moisture and oil. Continue blasting until finish complies with Swedish Standard SIS 05 59 00, preparation grade SA 2.5 or ISO 8501-1
• Coat blasted steel within 2 weeks. All surfaces to be coated should be clean, dry and free from loose friable materials and any other contaminants likely to impair adhesion.
• Nullifire recommends and have tested a number of primers. Contact Rawlins Technical Support team on 0113 2455450 (option 2) or send a message to [email protected] for details
• The system is not suitable for use over single pack primers and compatibility with 2 pack primers should be checked with Nullifire/Rawlins Technical Services. For use over galvanised surfaces or other substrates please contact Nullifire/Rawlins Technical Services

Application Conditions

• Ensure adequate through ventilation during application
• Application temperature range -5°C to +35°C, relative humidity <95% and a steel surface temperature at least 3°C above the dew point

Application Equipment

Spray Equipment

• Graco XM Plural-Component Pump
• Note: All equipment used in conjunction with this pump must be suitably pressure rated at 7000 psi
• Ratio: 5.6:1 by volume
• Spraying Pressure: 3000-5000psi
• Remote mix manifold conversion kit
• In-line static spiral mixer (minimum of one)
• Flush Pump recommended

Spray Gun & Tips

• WIWA 500F Spray Gun
• XHD RAC Switch Tip Orifice size 0.019 to 0.023 inches

Part A Handling (Recommended)

• Graco Monark 5:1 Air Powered Transfer Pump
• Graco Heavy Duty Back Geared Drum Agitator

Mixing

• Always mechanically mix product in full pack volumes
• Ensure the two components are thoroughly combined until a uniform colour is obtained

Application

• Keep all product containers closed when not in use. Part B is moisture sensitive and should remain tightly closed before use
• The product is self-priming onto correctly prepared steelwork. Damaged primer does not need to be repaired in C1 or C2 environments
• The product should be spray applied at close proximity, approximately 600 mm from the surface, to avoid dusting and promote good surface coalescence
• Use of a wet film gauge is essential

Note: If the user needs to stop spraying for longer than 15 minutes flushing will be necessary

Site Work

• Galvanised bolts, once degreased, can be coated with no further preparation
• Damaged coatings can be trimmed to a feathered edge and the material trowelled in one application
• The applied product once cured can be easily finished to a high level, by sanding or tooling with either electrical or hand tools
• Repairs can be carried out using an S900 Repair Kit

Cleaning

• Flush spray equipment with FC150 or an equivalent xylene-based solvent, do not use solvents which contain water, as these can result in premature curing of the product in the spray line. Contact Technical Support if unsure of compatibility of cleaning agents.

Maintenance & Repair

• Damaged areas should be abraded back to a sound surface
• The surface should then be clean and dry before re-applying
• The SC900 repair kit should be used (sold separately) for repairing scratches and chips
• Once repaired top seal should be re-applied. Refer to Nullifire System SC900 Maintenance Instructions

Technical Data

Topseal Requirements

• Once DFT’s have been achieved as specified, a Nullifire top seal can be applied - Contact Rawlins Technical Support team on 0113 2455450 (option 2) or send a message to [email protected] for details
• Ensure the SC901 is completely dry before applying top seal

Optifire+: Reliable and traceable fire protection

Optifire+ is a unique addition to Nullifire intumescent steel coatings that provides full transparency for:

• Applicators – Ability to ensure product installed on site is correct and to standards
• Main Contractors - Ability to ensure that specifications are been adhered to
• Architects and Specifiers - Ensuring your design projects comply to the latest building regulations and fire protection that is identifiable in future years

What is Optifire+ and how does it work?

Optifire+ is a unique and impossible to manipulate pigment. With Optifire+ we can be sure, at any time after the project is completed, that the product specified is the product applied – confidence that the materials submitted through the approval processes are installed to protect customer's assets.

Optifire+ is invisible to the naked eye and is added to Nullifire intumescent steel coatings. It can be identified with the traceability tool.

Why it is important

As a product identifier, Optifire+ doesn’t change the way intumescent coatings work. But it does stimulate that they are used and are applied correctly. Nullifire intumescent steel coatings can’t be altered without it being visible and application can be checked afterwards.

With Optifire+, Nullifire goes beyond what’s expected and further endeavours to keep residents and emergency services safe, and protect the buildings that they rely on.

Optifire+ is manufactured within the UK. These locally produced products are independently tested and certified according to the highest standard in the industry.

Legal

Building owners are now more than ever been urged to act and put the safety of residents first. There’s an increased focus and scrutiny on the effectiveness of fire protection strategies in commercial and residential buildings. Negligence or simply being unable to prove that the proper precautions have been taken means risking legal action.

IMPORTANT FIRE PRODUCTS NOTICE: The information displayed on this website should be used as a guide ONLY and our Technical Department should be contacted to obtain a tailored specification and any advice necessary before you place an order for fire protection products. Fire protection products are non-returnable except in accordance with Condition 8 of the Terms and Conditions and should be applied only by an individual with the necessary expertise and experience. We will not be held liable for any resulting damage to property, human life or monetary costs incurred due to the incorrect specification you have prepared or use of fire protection products caused by your negligence, including your failure to have contacted us to obtain the relevant advice/specification.