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].

The Nullifire SC900 On-Site Intumescent Steel Coating Repair Kit enables seamless repairs to accidental damage in isolated areas in order to preserve fire integrity, such as long-term repairs to accidental damage caused to an SC901 or SC902 coating.

The repair kit can be applied to a smooth matt finish and a compatible top seal can be applied if a decorative finish is required. Low VOC and no solvent entrapment or prolonged solvent odour.

Part A (4.2 kg) and Part B (0.5 kg) supplied as a 4.7 kg kit.

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• Features & Benefits
• Protective Equipment
• Surface Preparation & Priming
• Application Conditions
• Application Equipment
• Mixing
• Application
• Drying Times
• Application Advice
• Cleaning
• Transportation
• Maintenance & Repair
• Technical Data

Features & Benefits

• Intumescent steel coating repair kit
• Up to 120 minutes fire resistance
• Can be applied to a smooth matt finish
• A compatible top seal can be applied if a decorative finish is required
• Allows high quality fast cure repairs to SC901 and SC902 coated surfaces
• Maintains the integrity of the original coating even after the repair
• Same fast cure properties as the original material
• Repairs can be done at low temperatures and are weather resistant
• Suitable for treating scratches, grazes, indentations and minor abrasions
• Low VOC and no solvent entrapment or prolonged solvent odour.

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 that can be downloaded from the "attachments" section above.

Surface Preparation & Priming

If original surface was unprimed, then no primer is required.

Any damaged primer will need to be spot repaired with a compatible approved system and allowed to dry.

This may facilitate the further removal of a basecoat layer.

All edges must be feathered to prevent isolated cracking once the repair is complete.

Application Conditions

The damaged area should not exceed 150 mm x 150 mm.

Temperature should be above 0°C.

Application Equipment

• Paint Brushes (Various Sizes)
• Pallet Knife- Used for mixing materials
• Filling Knife- Used for applying Filler System
• Scraper- Used for removing loose materials
• Float- Used for filling and smoothing materials
• Window Scraper- Used for removing rough edges or protrusions
• Sand Paper (Various Grades)
• Sanding Block
• Nullifire SC900 Series Repair Kit
• Primer (As per original specification)
• Top Seal (As per original specification)

Mixing

Mix the Part B into the Part A container using a pallet knife until a uniform colour is obtained. Always mix the whole container.

Application

To reinstate the basecoat to its original thickness use the most appropriate method for the size and type of damage.

Mixed SC900 should be worked into the damaged area and let slightly proud of the surrounding surface to minimise work when cured.

The SC900 will shrink by about 10% after application.

Drying Times

All areas should be allowed to dry as per the original SC901 or SC902 for a minimum of 4 hours.

Application Advice

It is recommended that for areas of high aesthetic appearance, further preparation is undertaken.

This may involve using a window scrapper to smooth out surface abrasions.

SC900 repair filler can easily be sanded by hand or mechanical sander to provide a flat finish.

Cleaning

Excess sealant can be cleaned or removed with soapy water before sealant skins. Clean spray equipment with soapy water and as per manufacturer instructions.

Transportation

SC900 is compliant with the exemption for all shipping by road (ADR 2.2.3.1.5), as a Class 3 ‘flammable liquid’ under the dangerous goods regulations.

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 for repairing scratches and chips. Once repaired, the top seal should be re- applied. Refer to Nullifire System SC900 Maintenance Instructions.

Technical Data