Smart Protection from Nullifire

17 Oct 2019 by Permax

Designed for internal and semi exposed structural steelwork, Nullifire’s innovative intumescent basecoat, SC602, can be applied on-site by airless spray to provide smart fire protection for at least 60 minutes.

Steel surfaces should be clean (sandblasted to 2.5), undamaged and dry, before applying SC602 and the Nullifire multi-coat formulation should also be used in conjunction with a suitable and compatible primer and topcoat. Prior to application of the primer, all mill-scale must be removed with a blast profile of at least 50 microns achieved.  Once fully coated and suitably dry, SC602 applications can be exposed to the weather for up to six months as long as there is no interference from ponding water due to rainfall or condensation.

Supplied in a 25 kg drum, the off-white intumescent coating should be used in well ventilated conditions with protective equipment worn during handling and use. The equipment can then be cleaned using xylene (FC150). While SC602 is designed for on-site application, an off-site version, SC601, is also available in 250 kg drums to aid productivity.

SC602 offers an average drying time of 60 minutes to touch and six hours to recoat while the off-site alternative, SC601, has an average drying time of 30 minutes to touch and four hours to recoat. For best results, the application temperature should be between 5°C and 35°C.

Permax only source and supply products from the best manufacturers from around the world – those whose products meet the most stringent of criteria.The Permax team are highly qualified to help you with any question you may have. We can develop specifications, provide technical advisory notes and offer advice on design details to suit your project.We are Permax: a team of knowledgeable and experienced professionals who work with our clients to determine the right specifications for their project, determine ways to optimise the quantities required and ensure you are supported throughout the engineering and application process.Whether you are looking to learn more about the Nullifire range of products, source materials or a local certified installer, or are looking for technical assistance, Permax are here to help you.At Permax we are happy to offer our assistance and advice for your structural steel fire protection requirements. Our industry expertise has led us to compile a collection of the questions we are most frequently asked. One of our popular brand of structural steel fire protection is Nullifire.Nullifire is a brand recognized as a global leader in passive fire protection systems, and has become synonymous with some of the best structural steel fire protection coatings technologies available today. Formulated and manufactured to the highest standards, the Nullifire thin film intumescent coatings – specifically the SC900 series - offer application and performance advantages which have made it the first choice of builders, engineers, architects and specifiers in many countries world wide.Combating The Effects Of Fire - WIth NullifireFires are generally classified as either Cellulosic or Hydrocarbon fires. The essential difference between them relates to how quickly each reaches its maximum temperature range and the combustible fuel source feeding the fire.Cellulosic fires are those that are fuelled by materials such as timber, furniture, paper, plastics and other common items as found in buildings such as offices, hospitals, shopping centres and residential buildings.In such a fire, temperatures quickly reach around 550 degrees Celsius which over the course of the fire will have a dramatic effect on the structural steel within the building. Whilst it will not burn, it will warp and lose its ability to support a load, increasing the likelihood of building collapse.Under the NCC all buildings with exposed structural steel are required to implement protective measures around the steel.The Nullifire range of intumescent coatings are designed to protect structural steel in the case of cellulosic fire. Often called fire retardants, or mistakenly called "fireproof" paints, intumescent coatings refer to that class of specially formulated coatings which swell and form a protective "char" as a result of extreme heat exposure.Nullifire intumescent basecoats are formulated specifically to fire protect structural steel up to a fire rating level of 120 minutes.


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