An end-to-end service for structural steel: shot blasting with iron silicate media, compatible coating preparation and intumescent paint application—delivered by one UK contractor.
A fire-protection system can only be as dependable as the steel surface beneath it and the controls applied during installation.
Premier Blasting brings surface-preparation experience into the intumescent painting process. Where steel requires full preparation, our team can blast-clean using iron silicate media before applying the specified compatible system. Where preparation is already complete, we can assess a standalone application scope.
What to expect from an intumescent contractorWe scope the route around the actual condition of the steel and the requirements of the selected fire-protection system.
End-to-endFor new, weathered or previously coated steelwork requiring controlled preparation before the specified fire-protection system is installed.
Application onlyFor steelwork where preparation and the existing primer have been completed and accepted as suitable for the proposed coating system.
Every project is governed by its specification and the selected coating manufacturer's requirements. This is the typical delivery framework.
Review the steel, existing coating condition, access, programme and fire-protection specification before mobilisation.
Where required, blast-clean with iron silicate media to the agreed standard and establish the correct surface condition.
Apply the compatible primer, specified intumescent coating and topcoat in controlled passes, subject to the selected system.
Complete the specified coating sequence and review the finished work against the agreed project scope.
Our project media shows real Premier Blasting work: powered access, masking and contained spray zones around complex steel geometry. The final installation requirements remain specific to the project design and selected tested system.
Intumescent coating requirements are project-specific.
Product selection and coating build depend on the tested system, fire-resistance period, section factor, limiting steel temperature and other design inputs. We work to the issued project schedule and selected product requirements.
Early technical information helps us understand whether the project needs a combined blast-and-paint route or standalone application.
Browse the technical glossaryYes. The combined service is designed for steelwork that needs blast cleaning before the protective coating system is applied. One contractor can coordinate preparation, compatible primer, intumescent application and topcoat. We also provide standalone intumescent painting where the substrate and existing primer are suitable and accepted.
Structural-steel systems are commonly specified for 30, 60, 90 or 120 minutes. The correct product and required coating build are project-specific and depend on factors including steel section factor, limiting steel temperature, exposure, environment and the selected tested system.
The protective system relies on a sound, clean and compatible substrate. Poor preparation, contamination or an incompatible primer can undermine adhesion and the completed coating system. Preparation requirements must follow the coating manufacturer and project specification.
Yes, subject to the incoming surface condition, primer identity and compatibility with the specified intumescent system being accepted before work starts.
Sa 2.5 is the very thorough blast-cleaning grade defined by ISO 8501-1. Visible oil, grease, dirt, mill scale, rust, paint coatings and foreign matter are removed, with only slight traces permitted as spots or stripes. Where Sa 2.5 is specified, the prepared steel must also meet the approved coating system's requirements for cleanliness, profile and condition before priming or coating begins.
Inspection should follow the project specification, the approved coating system and the responsible designer's requirements. Checks can include substrate condition, preparation standard, environmental conditions, product identity and batch information, compatibility between coats, application sequence, curing and the finished condition. Acceptance criteria and any required records should be agreed before work starts rather than assumed on site.
Send the location, drawings or steel schedule, target fire-resistance period and programme. We will review the information and arrange a site visit where appropriate.
